RUTACEAE
RUTACEAE
RUTACEAE
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<strong>RUTACEAE</strong><br />
芸香科 yun xiang ke<br />
Zhang Dianxiang (张奠湘) 1 ; Thomas G. Hartley 2 , David J. Mabberley 3<br />
Shrubs, trees, or sometimes herbs, sometimes scrambling or scandent, sometimes armed, with aromatic volatile oils contained in<br />
glands visible at surface of at least leaves, young branchlets, inflorescences, flower parts, fruit, or cotyledons in seed. Stipules absent<br />
[or stipular excrescences rarely present]. Leaves alternate, opposite [or whorled], simple (petiole neither apically swollen nor articulate<br />
with leaf blade), 1-foliolate (in individual specimens at least some 1-foliolate leaves with petiole apically swollen and/or articulate with<br />
leaf blade), or variously compound. Flowers bisexual or unisexual, usually 3–5-merous, actinomorphic or rarely zygomorphic, hypogynous<br />
[or rarely perigynous]. Perianth in 2 series, with clearly differentiated calyx and corolla or sometimes in 2 irregular series or 1<br />
series, with ± undifferentiated tepals. Sepals distinct or connate to their full length. Petals distinct [or rarely coherent or connate for part<br />
of their length]. Stamens usually as many as or 2 × as many as petals or sometimes more numerous; filaments distinct or sometimes<br />
coherent or connate for at least part of their length; anthers introrse or sometimes latrorse, longitudinally dehiscent. Disk [rarely lacking]<br />
within androecium, nectariferous, flattened, annular, cup-shaped, pulvinate, or sometimes columnar, bell-shaped, conic, or hourglass-shaped.<br />
Gynoecium of 1–5 distinct 1-loculed carpels or 2 to many partially to completely connate carpels; placentation axile<br />
[very rarely becoming parietal]; ovules 1 to many per locule. Fruit of 2–5 follicles [drupes or samaras] or a single follicle, capsule, or<br />
berry [or samara]. Seeds with relatively large embryo; endosperm present and fleshy or lacking.<br />
About 155 genera and ca. 1600 species: nearly cosmopolitan but mainly tropical and subtropical; 22 genera (one endemic, one introduced) and<br />
126 species and hybrid species (49 endemic, at least two introduced) in China.<br />
Oil glands of Rutaceae, when viewed from the surface of plant parts they occupy, are usually pellucid. They also appear to be ± isodiametric and to<br />
have ± definite patterns of distribution. In blades of leaves, for example, where they are most commonly observed, they are usually ± evenly scattered<br />
throughout, or sometimes they are restricted to the margins. Rarely they are alleged to occur only along the secondary veins of the blades.<br />
In a cladistic analysis of selected genera of Rutaceae and related families based on rbcL and atpB molecular data (but only on rbcL data for<br />
Harrisonia), M. W. Chase, C. M. Morton, and J. A. Kallunki (Amer. J. Bot. 86: 1191–1199. 1999) recommended the placement of Harrisonia<br />
(traditionally Simaroubaceae) in Rutaceae. We do not agree with this classification, particularly because Harrisonia appears to lack oil glands, and<br />
suggest that the genus is most correctly placed in Cneoraceae, in which it is treated herein.<br />
Several taxa of cultivated Rutaceae treated by C. C. Huang (Fl. Reipubl. Popularis Sin. 43(3). 1997) are not treated here: Casimiroa edulis La<br />
Llave, which is native to Mexico, has been introduced as a cultivated plant to the Xishuangbanna Botanical Garden in Yunnan; Limonia acidissima<br />
Linnaeus (Feronia limonia (Linnaeus) Swingle), which is native to India and Sri Lanka, has been reported as cultivated in Taiwan by C. C. Huang (Fl.<br />
Reipubl. Popularis Sin. 44(3): 212. 1997) but was not reported as a cultivated plant by T. C. Huang in A Checklist of the Vascular Plants of Taiwan (Fl.<br />
Taiwan 6: 81–83. 1979); Flindersia amboinensis Poiret, which is native to Indonesia and New Guinea, is cultivated in S China; Ptelea trifoliata<br />
Linnaeus, which is native to North America, is cultivated in Beijing and Liaoning; and Ruta graveolens Linnaeus, which is native to the Mediterranean<br />
region, is widely cultivated in China.<br />
Huang Chengchiu. 1997. Rutaceae. In: Huang Chengchiu, ed., Fl. Reipubl. Popularis Sin. 43(2): ii–viii, 1–250.<br />
1a. Leaves opposite.<br />
2a. Leaves mostly odd-pinnate; inflorescences terminal or terminal and axillary; plants dioecious.<br />
3a. Axillary buds exposed; ovary in female flowers with carpels connate at base, otherwise contiguous;<br />
fruit of 1–5 follicles ............................................................................................................................................ 3. Tetradium<br />
3b. Axillary buds concealed in excavated base of petioles; ovary in female flowers syncarpous; fruit a<br />
drupaceous berry ....................................................................................................................................... 10. Phellodendron<br />
2b. Leaves digitately 3-foliolate or 1-foliolate; inflorescences axillary or basal to leaves; plants usually<br />
monoclinous or dioecious.<br />
4a. Leaves digitately 3-foliolate or 1-foliolate; ovary in bisexual and female flowers with carpels connate<br />
at base, otherwise contiguous; fruit of 1–4 basally connate follicles .................................................................. 4. Melicope<br />
4b. Leaves 1-foliolate; ovary in bisexual and female flowers syncarpous or rarely (Acronychia) separated<br />
apically by septicidal fissures; fruit a drupaceous berry.<br />
5a. Flowers male or female; stamens glabrous, similar in male and female flowers but lacking pollen<br />
in latter; gynoecium rudimentary and minute in male flowers, ± as long as petals in female<br />
flowers; seed coat with thick inner layer of dense black sclerenchyma and spongy outer<br />
layer bounded externally by a shiny black pellicle ......................................................................... 12. Maclurodendron<br />
5b. Flowers bisexual; staminal filaments with an indumentum; gynoecium ± half as long as petals;<br />
seed coat with thick inner layer of dense black sclerenchyma and an outer layer of compact<br />
dull to ± shiny parenchymatous tissue ..................................................................................................... 11. Acronychia<br />
1 South China Botanical Garden, Chinese Academy of Sciences, Longdong, Shahe, Guangzhou, Guangdong 510650, People’s Republic of China.<br />
2 Centre for Plant Biodiversity Research, CSIRO, G.P.O. Box 1600, Canberra, A.C.T. 2601, Australia.<br />
3 Herbarium, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AE, United Kingdom.<br />
51
52<br />
<strong>RUTACEAE</strong><br />
1b. Leaves alternate.<br />
6a. Plants herbaceous perennials.<br />
7a. Leaves mostly simple ................................................................................................................................... 6. Haplophyllum<br />
7b. Leaves mostly compound.<br />
8a. Flowers zygomorphic, 5-merous; stamens 10; fruit of 5 basally connate follicles, 1–2 cm ...................... 8. Dictamnus<br />
8b. Flowers actinomorphic, 4-merous; stamens usually 8; fruit follicular or capsular, to 0.5 cm.<br />
9a. Leaves pinnately to ternately decompound; fruit of 4 distinct follicles .................................. 5. Boenninghausenia<br />
9b. Leaves mostly digitately 3-foliolate; fruit a capsule ...................................................................... 7. Psilopeganum<br />
6b. Plants woody.<br />
10a. Fruit follicular or drupaceous; endocarp cartilaginous or leathery; seeds with endosperm; flowers<br />
male, female, or sometimes bisexual; functional stamens as many as petals except in plants of<br />
Zanthoxylum with undifferentiated perianth which have 5–9 tepals and 3–8(–10) functional stamens;<br />
functional gynoecium 1–7-loculed, syncarpous or with distinct or only basally connate carpels.<br />
11a. Leaves mostly compound; plants usually armed.<br />
12a. Leaves odd-pinnately 3- to many foliolate or sometimes digitately 3-foliolate (occasional<br />
leaves even-pinnate, 2-foliolate, or 1-foliolate); functional gynoecium 1–5-loculed,<br />
with distinct carpels or carpels basally connate; fruit of 1–5 distinct or basally connate<br />
follicles ...................................................................................................................................... 1. Zanthoxylum<br />
12b. Leaves digitately 3-foliolate (occasional leaves 1- or 2-foliolate); functional gynoecium<br />
4–7-loculed, syncarpous; fruit a 4–7-loculed drupaceous berry ..................................................... 9. Toddalia<br />
11b. Leaves simple; plants unarmed.<br />
13a. Inflorescences axillary, between leaves, or basal to leaves; flowers male or female; functional<br />
gynoecium 4-loculed; ovaries basally connate; fruit of 1–4 basally connate follicles ........................ 2. Orixa<br />
13b. Inflorescences terminal; flowers male, female, or sometimes bisexual; functional gynoecium<br />
2–5-loculed, syncarpous; fruit drupaceous berry, with 1–5 1-seeded leathery pyrenes ............... 13. Skimmia<br />
10b. Fruit baccate; endocarp membranous or fleshy; seeds without endosperm; flowers bisexual or bisexual<br />
and male; stamens at least 2 × as many as petals or rarely fewer; functional gynoecium 2- to many<br />
loculed, syncarpous.<br />
14a. Flowers bisexual or bisexual and male; stamens more than 2 × as many as petals; gynoecium 2- to<br />
many loculed; ovules 2 to many per locule; fruit with stalked or rarely sessile pulp vesicles;<br />
leaves odd-pinnately 3(or 5)-foliolate, digitately 3-foliolate, 1-foliolate, or simple.<br />
15a. Plants evergreen, rarely deciduous (Citrus trifoliata); fruit with leathery (or rarely soft)<br />
exocarp and spongy mesocarp; seeds embedded in pulp vesicles; leaves 1-foliolate,<br />
simple, or rarely digitately 3-foliolate ............................................................................................... 21. Citrus<br />
15b. Plants deciduous; fruit with thin, parenchymatous exocarp and woody mesocarp; seeds<br />
embedded in a clear glutinous substance; leaves odd-pinnately 3(or 5)-foliolate ............................. 22. Aegle<br />
14b. Flowers bisexual; stamens 2 × as many as petals or rarely fewer; gynoecium 2–5-loculed; ovules 1<br />
or 2 per locule; fruit either without pulp vesicles or with sessile pulp vesicles; leaves odd-pinnately<br />
3- to many foliolate, digitately 3-foliolate, 1-foliolate, or simple (occasional leaves 2-foliolate).<br />
16a. Radial walls of locules in gynoecium becoming curved after anthesis; cotyledons in seed<br />
thin and flat, convolute, and/or folded ..................................................................................... 14. Micromelum<br />
16b. Radial walls of locules in gynoecium straight; cotyledons in seed plano-convex, neither<br />
convolute nor folded.<br />
17a. Terminal and axillary buds and usually young inflorescences with a rust-colored<br />
villosulous indumentum (sometimes partly bleached); style persistent in fruit ............... 15. Glycosmis<br />
17b. Terminal and axillary buds and young inflorescences without a rust-colored villosulous<br />
indumentum; style or at least its distal portion usually deciduous in fruit.<br />
18a. Leaves 1-foliolate or simple.<br />
19a. Fruit without pulp vesicles; stamens distinct; flowers axillary, solitary or<br />
in few-flowered fascicles; petiole 0.4–2.5 cm, usually bent and/or twisted<br />
and ± apically swollen; erect or scrambling shrubs or woody climbers,<br />
usually armed ............................................................................................... 19. Paramignya<br />
19b. Fruit usually with pulp vesicles; stamens distinct or with filaments variously<br />
connate or coherent; flowers in terminal and/or axillary inflorescences, in<br />
fascicles, racemes, or panicles; petiole 0.2–1.3 cm, usually not bent, twisted,<br />
or swollen; shrubs or trees, armed or unarmed ................................................ 20. Atalantia<br />
18b. Leaves, or most of them, compound.<br />
20a. Leaves mostly digitately 3-foliolate; woody climbers, armed .......................... 18. Luvunga<br />
20b. Leaves odd-pinnate; shrubs or trees, unarmed.
<strong>RUTACEAE</strong><br />
21a. Flower buds globose, pyriform, or rarely ovoid; staminal filaments ±<br />
abruptly dilated toward base, ± straight or geniculate; style 0.5–2.5 × as<br />
long as ovary; disk columnar, conic, bell-shaped, or ± hourglass-shaped;<br />
seeds glabrous .......................................................................................... 16. Clausena<br />
21b. Flower buds ellipsoid to obovoid or narrowly so or subcylindric; staminal<br />
filaments linear or sublinear, ± straight; style 3–7 × as long as ovary; disk<br />
annular, pulvinate, or columnar; seeds glabrous or villous ..................... 17. Murraya<br />
1. ZANTHOXYLUM Linnaeus, Sp. Pl. 1: 270. 1753.<br />
花椒属 hua jiao shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Shrubs sometimes scrambling, trees, or woody climbers, evergreen or deciduous, dioecious, rarely monoecious or polygamo-<br />
monoecious [or monoclinous], usually armed [or exclusively unarmed]. Leaves alternate, odd-pinnately 3- to many foliolate or<br />
sometimes digitately 3-foliolate (occasional leaves even-pinnate, 2-foliolate, or 1-foliolate). Inflorescences terminal, axillary, or basal<br />
to leaves, paniculate, thyrsiform, corymbiform, racemose, or umbelliform. Perianth in 2 series and differentiated with 4 or 5 sepals and<br />
4 or 5 petals or grading to 1 series and undifferentiated with 5–9 tepals. Sepals distinct or basally connate. Petals valvate or imbricate in<br />
bud. Stamens distinct, 4 or 5 in plants with sepals and petals, 3–8(–10) in plants with tepals, rudimentary or lacking in female flowers.<br />
Disk flattened, pulvinate, or columnar. Gynoecium 1–5-carpelled, rudimentary or lacking in male flowers; ovaries basally connate,<br />
otherwise ± contiguous or distinct, 1-loculed; ovules 2 per locule. Styles in compound gynoecium apical or subapical, coherent or<br />
contiguous to spreading-ascending or recurved; stigmas capitate, coherent or distinct. Style in simple gynoecium off-centered, erect or<br />
variously curved or bent; stigma capitate to peltate. Fruit follicles 1–5, distinct or basally connate, apex often with a stylar beak;<br />
abortive carpels, if any, often persistent. Seeds globose to ovoid, persistent in dehisced fruit; seed coat with a thick or rarely ± thin inner<br />
layer of dense black sclerenchyma and spongy-fleshy outer layer bounded externally by a shiny black or reddish pellicle; endosperm<br />
copious or rarely scant; embryo straight or ± curved; cotyledons ± orbicular to broadly elliptic, flattened or rarely plano-convex;<br />
hypocotyl superior.<br />
Two hundred or more species: pantropical and extending to temperate latitudes in E Asia and E North America; 41 species (25 endemic) in China.<br />
1a. Perianth in 2 irregular series or 1 series, with 5–9 ± undifferentiated tepals; stamens in male flowers 4–8(–10).<br />
2a. Gynoecium in female flowers 1(or 2)-carpelled and leaf rachises not winged but canaliculate with sides of<br />
channel rarely slightly spreading at apex of rachis ................................................................................................. 32. Z. wutaiense<br />
2b. Gynoecium in female flowers 2–5-carpelled or if 1-carpelled then leaf rachises with wing to 6 mm wide on<br />
each side.<br />
3a. Fruit follicles stipitate.<br />
4a. Leaflet blades 0.7–1.3 cm wide ........................................................................................................................ 41. Z. stipitatum<br />
4b. Leaflet blades usually at least 1.5 cm wide.<br />
5a. Leaves 3–5(–11)-foliolate; follicles apically shortly beaked .......................................................... 29. Z. dimorphophyllum<br />
5b. Leaves 5–15-foliolate; follicles not apically beaked ...................................................................................... 40. Z. simulans<br />
3b. Fruit follicles not stipitate.<br />
6a. Leaf rachises usually conspicuously winged.<br />
7a. Wings of leaf rachis extending to as much as 3 mm on each side; secondary veins of leaflet blades<br />
evident, 10–28 on each side of midvein; anthers in male flowers reddish purple prior to anthesis;<br />
gynoecium in female flowers 2–5-carpelled ....................................................................................... 30. Z. acanthopodium<br />
7b. Wings of leaf rachis extending to as much as 6 mm on each side; secondary veins of leaflet blades<br />
generally faint especially adaxially, 7–15 on each side of midvein; anthers in male flowers yellow<br />
prior to anthesis; gynoecium in female flowers 1–3-carpelled ..................................................................... 31. Z. armatum<br />
6b. Leaf rachises not conspicuously winged but sometimes with a distinct margin.<br />
8a. Fruit follicles pubescent; branchlets covered with setiform prickles and compressed pseudostipular<br />
prickles decurrent along branchlet and forming a wing joining them between nodes ......................... 39. Z. pteracanthum<br />
8b. Fruit follicles glabrous; branchlets without compressed pseudostipular prickles joined by a wing.<br />
9a. Leaflet blades to 3 × 1.5 cm.<br />
10a. Leaflet blades reddish brown to blackish brown when dry .................................................................. 37. Z. piasezkii<br />
10b. Leaflet blades grayish green to yellowish green when dry ................................................................. 38. Z. pilosulum<br />
9b. Leaflet blades usually larger than 3 × 1.5 cm.<br />
11a. Leaf near inflorescence on fertile branchlet 3-foliolate, with terminal leaflet 4–6 cm wide ............ 36. Z. motuoense<br />
11b. Leaf near inflorescence on fertile branchlet more than 5-foliolate, with terminal leaflet less<br />
than 3.5 cm wide.<br />
53
54<br />
<strong>RUTACEAE</strong><br />
12a. Leaf rachises terete, glabrous ..................................................................................................... 35. Z. austrosinense<br />
12b. Leaf rachises with a distinct margin or pubescent.<br />
13a. Leaflet blades abaxially flocculent along midvein and adaxially glabrous or both surfaces<br />
pubescent .................................................................................................................................... 33. Z. bungeanum<br />
13b. Leaflet blades abaxially glabrous and adaxially hirsutulous to sparsely puberulent ........... 34. Z. undulatifolium<br />
1b. Perianth in 2 series, with 4 or 5 sepals and 4 or 5 petals; stamens in male flowers 4 or 5.<br />
14a. Flowers 5-merous; trees or rarely shrubs.<br />
15a. Shrubs; leaflet blades rarely wider than 2 cm, adaxially with trichomes and abaxially glabrous ............... 28. Z. schinifolium<br />
15b. Trees; leaflet blades wider than 2 cm, adaxially glabrous or both surfaces with trichomes.<br />
16a. Fertile branchlets unarmed, with small pith; leaf rachises winged.<br />
17a. Gynoecium in female flowers 2(or 3)-carpelled; leaflet blades asymmetric, oblique at base .................. 23. Z. avicennae<br />
17b. Gynoecium in female flowers 3(or 4)-carpelled; leaflet blades at base rounded to broadly cuneate,<br />
symmetric or asymmetric ....................................................................................................................... 24. Z. micranthum<br />
16b. Fertile branchlets armed, with large pith; leaf rachises not winged.<br />
18a. Leaflet blades glabrous.<br />
19a. Leaflet blades dark green to light yellowish green when dry, abaxially glaucous ............................ 25. Z. ailanthoides<br />
19b. Leaflet blades reddish brown to blackish brown, abaxially not glaucous ...................................... 26. Z. myriacanthum<br />
18b. Leaflet blades abaxially and/or adaxially with trichomes.<br />
20a. Leaflet blades abaxially and adaxially with trichomes .................................................................... 26. Z. myriacanthum<br />
20b. Leaflet blades abaxially with trichomes, otherwise glabrous.<br />
21a. Leaflet blades abaxially with a soft woolly villous indumentum .............................................................. 27. Z. molle<br />
21b. Leaflet blades abaxially pubescent .................................................................................................. 25. Z. ailanthoides<br />
14b. Flowers 4-merous; woody climbers, shrubs, or rarely trees.<br />
22a. Gynoecium in female flowers 2- or 3-carpelled and styles usually recurved; follicles stipitate ........ 29. Z. dimorphophyllum<br />
22b. Gynoecium in female flowers 1-carpelled or if 2–4-carpelled then styles usually erect to<br />
spreading-ascending; follicles not stipitate.<br />
23a. Inflorescences terminal, cymose-corymbiform; pedicel at least 1 cm in fruit and purplish red like follicles.<br />
24a. Fruit pedicel 1–1.5 cm, ca. 1 mm wide; leaflet blades with numerous oil glands, midvein adaxially<br />
impressed and puberulent, margin of blade serrulate ............................................................................. 20. Z. oxyphyllum<br />
24b. Fruit pedicel 1.5–4.5 cm, less than 1 mm wide; leaflet blades with inconspicuous oil glands, midvein<br />
adaxially ridged, plane, or impressed, margin of blade crenulate or entire toward base.<br />
25a. Midvein on adaxial surface of leaflet blades ridged or plane toward apex, petiolules pubescent<br />
adaxially ............................................................................................................................................ 21. Z. stenophyllum<br />
25b. Midvein on adaxial surface of leaflet blades impressed, petiolules glabrous ......................................... 22. Z. esquirolii<br />
23b. Inflorescences axillary and terminal, thyrsiform; pedicel rarely to 1 cm in fruit and not purplish red.<br />
26a. Fruit follicles with prickles and/or trichomes.<br />
27a. Fruit follicles with prickles and trichomes ...................................................................................... 19. Z. echinocarpum<br />
27b. Fruit follicles with trichomes, without prickles.<br />
28a. Leaflets opposite; leaflet blades 7–19 × 5–8 cm ................................................................................. 17. Z. collinsiae<br />
28b. Leaflets alternate to opposite; leaflet blades 6–8 × 2.5–3.5 cm ............................................................. 18. Z. liboense<br />
26b. Fruit follicles with neither prickles nor trichomes.<br />
29a. Fruit follicles 1–1.5 cm; outer part of pericarp (exocarp and mesocarp) wider than endocarp ................ 16. Z. dissitum<br />
29b. Fruit follicles to 0.9 cm; outer part of pericarp not wider than endocarp.<br />
30a. Leaflets opposite.<br />
31a. Trees; leaflet blades asymmetric ................................................................................................... 3. Z. integrifolium<br />
31b. Woody climbers or shrubs; leaflet blades symmetric.<br />
32a. Leaflet blades abaxially without oil glands along secondary veins, apex retuse at tip; petiolules<br />
obsolete or to 5 mm ............................................................................................................................. 1. Z. nitidum<br />
32b. Leaflet blades abaxially with oil glands along secondary veins, apex not retuse at tip;<br />
petiolules ca. 1 mm ....................................................................................................................... 2. Z. xichouense<br />
30b. Leaflets alternate or partly opposite.<br />
33a. Leaflet blades abaxially, leaf rachises, and inflorescences tomentulose ....................................... 4. Z. tomentellum<br />
33b. Leaflet blades abaxially, leaf rachises, and inflorescences glabrous or puberulent.<br />
34a. Leaves with numerous oil glands which project outward when dry.<br />
35a. Fruit follicles not apically beaked; leaflet blade oil glands light yellow to brown when dry,<br />
pellucid ..................................................................................................................................... 5. Z. glomeratum<br />
35b. Fruit follicles usually apically beaked; leaflet blade oil glands brown or blades blackish<br />
brown when dry.<br />
36a. Leaves 3- or 7(or 9)-foliolate; leaflet blades at least 5 cm, lustrous when dry ................... 6. Z. macranthum
<strong>RUTACEAE</strong><br />
36b. Leaves 7–51-foliolate; leaflet blades rarely to 5 cm, dull when dry.<br />
37a. Leaves 7–15-foliolate; leaflet blades symmetric or subsymmetric, midvein<br />
adaxially impressed ................................................................................................... 7. Z. rhombifoliolatum<br />
37b. Leaves 17–51-foliolate; leaflet blades asymmetric, midvein adaxially plane<br />
to ridged ............................................................................................................................. 13. Z. multijugum<br />
34b. Leaves with few oil glands or oil glands inconspicuous.<br />
38a. Leaf rachises with straight prickles 5–10 mm ............................................................................. 8. Z. leiboicum<br />
38b. Leaf rachises unarmed or with curved prickles rarely to 5 mm.<br />
39a. Fruit follicles 7–8 mm; margin of leaflet blades entire ................................................................ 9. Z. laetum<br />
39b. Fruit follicles 5–6 mm; margin of leaflet blades crenate at least near apex or rarely entire.<br />
40a. Pedicel of fruit and rachis of infructescences glabrous or sparsely puberulent .................. 10. Z. scandens<br />
40b. Pedicel of fruit and rachis of infructescences puberulent or pubescent.<br />
41a. Leaflet blades abaxially pubescent at least on midvein toward base or secondary<br />
veins ............................................................................................................................. 11. Z. kwangsiense<br />
41b. Leaflet blades abaxially glabrous.<br />
42a. Fruit pedicel 7–10 mm; petiolules 4–10 mm, leaflet blade apices caudate ............... 12. Z. khasianum<br />
42b. Fruit pedicel rarely more than 5 mm; petiolules 1–4 mm, leaflet blade apices acute,<br />
shortly acuminate, or shortly caudate.<br />
43a. Leaflet blades 2–5 × 0.7–2.5 cm, apex acute or shortly acuminate; inflorescences<br />
to 3 cm; innovations glaucous .................................................................................... 14. Z. calcicola<br />
43b. Leaflet blades 6–10 × 2.5–4 cm, apex shortly caudate; inflorescences to<br />
26 cm; innovations not glaucous ....................................................................... 15. Z. yuanjiangense<br />
1. Zanthoxylum nitidum (Roxburgh) Candolle, Prodr. 1: 727.<br />
1824.<br />
两面针 liang mian zhen<br />
Shrubs, erect or scrambling, or sometimes woody climbers.<br />
Trunk winged. Stems, branchlets, and leaf rachises usually with<br />
prickles. Rachis of inflorescences and abaxial surface of leaflet<br />
blades glabrous or hirsutulous. Leaves (3 or)5–11-foliolate;<br />
petiolules obsolete or to 5 mm; leaflet blades opposite, broadly<br />
ovate, subcordate, elliptic, narrowly elliptic, or rarely ovate,<br />
3–12 × 1.5–6(–8) cm, leathery, secondary and tertiary veins<br />
abaxially ridged when dry, margin crenate at least toward apex<br />
or entire, apex acuminate to caudate with a retuse tip. Inflorescences<br />
axillary. Flowers 4-merous. Perianth in 2 series. Sepals<br />
ca. 1 mm wide, apically purplish green. Petals pale yellowish<br />
green, ovate-elliptic to oblong, ca. 3 mm. Stamens in<br />
male flowers 5–6 mm; mature anthers ellipsoid to globose.<br />
Petals in female flowers broader than those in male flowers.<br />
Gynoecium in female flowers 4-carpelled; carpels globose.<br />
Styles stout, coherent at anthesis; stigma capitate. Fruit pedicel<br />
2–5 mm; follicles reddish brown, (5–)5.5–7 mm in diam., apex<br />
beaked. Fl. Mar–May, fr. Sep–Nov or May.<br />
Below 800 m. Fujian, Guangdong, Guangxi, S and SE Guizhou,<br />
Hainan, S Hunan, Taiwan, Yunnan, S Zhejiang [India, Indonesia, Japan<br />
(Ryukyu Islands), Malaysia, Myanmar, Nepal, New Guinea, Philippines,<br />
Thailand, Vietnam; Australia, SW Pacific islands].<br />
1a. Rachis of inflorescences and abaxial surface<br />
of leaflet blades glabrous ........................... 1a. var. nitidum<br />
1b. Rachis of inflorescences and abaxial<br />
surface of leaflet blades hirsutulous .. 1b. var. tomentosum<br />
1a. Zanthoxylum nitidum var. nitidum<br />
两面针(原变种) liang mian zhen (yuan bian zhong)<br />
Fagara nitida Roxburgh, Fl. Ind. 1: 439. 1820; F. hamiltoniana<br />
(Wallich ex J. D. Hooker) Engler; F. hirtella (Ridley)<br />
Engler; F. oblongifolia Bakhuizen f.; F. pendjaluensis Bakhuizen<br />
f.; F. torva (F. Mueller) Engler; F. warburgii Perkins; Zanthoxylum<br />
asperum C. C. Huang var. glabrum C. C. Huang; Z.<br />
hamiltonianum Wallich ex J. D. Hooker; Z. hirtellum Ridley; Z.<br />
torvum F. Mueller.<br />
Rachis of inflorescences and abaxial surface of leaflet<br />
blades glabrous. Petiolules 2–5 mm or leaflets subsessile; leaflet<br />
blades broadly ovate, subcordate, or narrowly elliptic, 1.5–6 cm<br />
wide, margin crenate or entire, apex caudate with a retuse tip.<br />
Fruit follicles 5.5–7 mm in diam. Fr. Sep–Nov.<br />
Below 800 m. Fujian, Guangdong, Guangxi, S and SE Guizhou,<br />
Hainan, S Hunan, Taiwan, Yunnan, S Zhejiang [India, Indonesia, Japan<br />
(Ryukyu Islands), Malaysia, Myanmar, Nepal, New Guinea, Philippines,<br />
Thailand, Vietnam; Australia, SW Pacific islands].<br />
1b. Zanthoxylum nitidum var. tomentosum C. C. Huang,<br />
Guihaia 7: 5. 1987.<br />
毛叶两面针 mao ye liang mian zhen<br />
Rachis of inflorescences and abaxial surface of leaflet<br />
blades hirsutulous. Petiolules 1–3 mm; leaflet blades elliptic or<br />
rarely ovate, 3–5(–8) cm wide, margin revolute and entire or<br />
apically crenate, apex acuminate. Fruit follicles ca. 5 mm in<br />
diam. Fr. May.<br />
● Hillside thickets. E Guangxi (Pingnan).<br />
2. Zanthoxylum xichouense C. C. Huang, Acta Phytotax. Sin.<br />
16(2): 83. 1978.<br />
西畴花椒 xi chou hua jiao<br />
Woody climbers, glabrous except for inflorescence<br />
rachises. Branchlets dark reddish purple when young, unarmed<br />
or spinose. Leaves 3–7-foliolate; petiolules ca. 1 mm; leaflet<br />
blades opposite, elliptic to obovate, 5–10 × 3–5 cm, thinly<br />
papery, oil glands inconspicuous, reticulate veinlets ridged when<br />
dry, base broadly cuneate, margin entire, apex acuminate. In-<br />
55
56<br />
fructescences axillary. Pedicel 4–7 mm in fruit. Fruit follicles<br />
crimson, globose, ca. 5.5 mm in diam., apex beaked; exocarp,<br />
mesocarp, and endocarp thin. Seeds 4–4.5 mm in diam. Fr. Oct.<br />
● Forests; 1400–1500 m. SE Yunnan (Xichou).<br />
3. Zanthoxylum integrifolium (Merrill) Merrill, Enum. Philipp.<br />
Fl. Pl. 2: 327. 1923.<br />
兰屿花椒 lan yu hua jiao<br />
Fagara integrifolia Merrill, Philipp. J. Sci. 1(Suppl. 1): 68.<br />
1906.<br />
Trees 13–20 m tall. Branchlets prickly. Leaves (13–)17–<br />
25-foliolate; rachis unarmed; petiolules 5–7 mm; leaflet blades<br />
opposite, oblong to obovate, 1.5–2 × 0.6–0.8 cm, papery, glabrous,<br />
adaxially lustrous when dry, oil glands inconspicuous,<br />
midvein adaxially impressed, secondary veins adaxially ridged,<br />
base oblique, margin entire, apex cuspidate with a blunt tip.<br />
Inflorescences terminal or axillary, to 25 cm. Flowers 4-merous.<br />
Perianth in 2 series. Petals white, ca. 3 mm. Male flowers: stamens<br />
4; rudimentary gynoecium shortly conic. Female flowers<br />
1-carpelled. Fruit pedicel 3–5 mm; follicle single, ca. 7 mm in<br />
diam. Seeds ca. 6 mm in diam.<br />
Taiwan (Lan Yu) [Philippines].<br />
4. Zanthoxylum tomentellum J. D. Hooker, Fl. Brit. India 1:<br />
493. 1875.<br />
毡毛花椒 zhan mao hua jiao<br />
Fagara tomentella (J. D. Hooker) Handel-Mazzetti; F.<br />
tomentella var. mekongensis Handel-Mazzetti.<br />
Woody climbers. Young branchlets, leaf rachises, petiolules,<br />
abaxial surface of leaflet blades, and rachis of infructescences<br />
grayish yellow to grayish brown tomentulose. Leaves<br />
7–15-foliolate; petiolules to 5 mm, thick; leaflet blades alternate,<br />
ovate to elliptic, 4–8 × 2–4 cm, leathery, midvein adaxially plane<br />
or ridged, base obliquely rounded, margin entire or apically<br />
crenate, apex mucronate to cuspidate. Inflorescences axillary.<br />
Flowers 4-merous. Perianth in 2 series. Petals pale yellowish<br />
white. Male flowers: stamens 4, longer than petals; connective<br />
with an oil gland at apex; rudimentary gynoecium shorter than<br />
petals. Female flowers: carpels globose. Infructescences 3–12<br />
cm. Fruit pedicel 2–5 mm, thick; follicles reddish brown,<br />
becoming brownish black when dry, 5–6 mm in diam., oil glands<br />
slightly protruding, apex beaked. Seeds ca. 5 mm in diam. Fl.<br />
Apr–May, fr. Sep–Oct. 2n = 72.<br />
Moist valleys; 2000–3000 m. NW and W Yunnan [Bhutan, NE<br />
India, Myanmar, Nepal].<br />
5. Zanthoxylum glomeratum C. C. Huang, Acta Phytotax. Sin.<br />
16(2): 82. 1978.<br />
密果花椒 mi guo hua jiao<br />
Shrubs. Branchlets and leaves glabrous, unarmed or with<br />
prickles. Leaves 5–9-foliolate; petiolules 4–8 mm; leaflet blades<br />
alternate, lanceolate, long elliptic, or rarely ovate, 6–12 × 2.5–5<br />
cm, thickly papery, oil glands numerous, reticulate veinlets<br />
abaxially inconspicuous and adaxially ridged, margin entire,<br />
<strong>RUTACEAE</strong><br />
apex acuminate to caudate with a rounded to retuse tip. Inflorescences<br />
axillary, thyrsiform. Female inflorescences 2–6 cm.<br />
Flowers 4-merous. Pedicel 1–2 mm. Perianth in 2 series. Petals<br />
pale yellowish green, ovate-elliptic, ca. 3 mm. Infructescences<br />
globose to conic. Fruit pedicel 5–8 mm; follicles pale yellow to<br />
brownish yellow when dry, ca. 7 mm, oil glands impressed, apex<br />
not beaked. Seeds dark brown, ca. 6 mm in diam. Fl. Apr, fr.<br />
Sep.<br />
● Upland forests and thickets; ca. 1500 m. Guangxi (Damiao<br />
Shan), SE Guizhou (Rongjiang).<br />
6. Zanthoxylum macranthum (Handel-Mazzetti) C. C. Huang,<br />
Acta Phytotax. Sin. 6: 70. 1957.<br />
大花花椒 da hua hua jiao<br />
Fagara macrantha Handel-Mazzetti, Sinensia 5: 17. 1934.<br />
Woody climbers, unarmed or echinate on abaxial surface of<br />
leaf rachis. Branchlets dark gray, rugose. Leaves 3- or 7(or<br />
9)-foliolate; leaflet blades opposite, ovate, elliptic, or oblanceolate,<br />
5–10 × 1.5–4 cm, thickly leathery, abaxially lustrous when<br />
dry, oil glands visible and slightly protruding when dry, midvein<br />
impressed and puberulent, base symmetric or rarely oblique,<br />
margin entire or crenate and becoming revolute. Inflorescences<br />
axillary, thyrsiform. Female flowers subsessile or with a pedicel<br />
to 1 mm, male flowers with a longer pedicel. Flowers 4-merous.<br />
Perianth in 2 series. Sepals purplish green. Petals pale yellowish<br />
green, broadly elliptic, ca. 3 mm. Male flowers: filaments ca. 4<br />
mm; rudimentary gynoecium shortly club-shaped, apically<br />
2-lobed. Female flowers: carpels 4. Infructescences 3–5 cm.<br />
Fruit pedicel 2–3 mm; follicles reddish brown, 5.6–6 mm in<br />
diam., with a flange, oil glands impressed, apex beaked. Seeds<br />
ca. 5 mm in diam. Fl. Apr–May, fr. Aug–Sep.<br />
● Upland open forests and thickets; 500–3100 m. Chongqing<br />
(Nanchuan), Guizhou, SW Henan, W Hubei, Hunan, Sichuan (Emei<br />
Shan), S Yunnan (Xishuangbanna), SE Xizang.<br />
7. Zanthoxylum rhombifoliolatum C. C. Huang, Acta Phytotax.<br />
Sin. 6: 67. 1957.<br />
菱叶花椒 ling ye hua jiao<br />
Shrubs 1–2 m tall, erect, glabrous. Branchlets and leaf<br />
rachises unarmed or prickly. Young branchlets purplish red.<br />
Leaves 7–15-foliolate; petiolules 1–5 mm; leaflet blades subopposite<br />
or alternate, rhombic, elliptic, or broadly ovate, 1.5–5 ×<br />
1–2.5 cm, leathery, oil glands numerous and slightly protruding<br />
when dry, midvein adaxially impressed, secondary veins 4–7 on<br />
each side of midvein, base oblique or symmetric and narrowly to<br />
broadly cuneate, margin crenate, apex mucronate to caudate.<br />
Inflorescences terminal or axillary, 4–10 cm. Flowers 4-merous.<br />
Perianth in 2 series. Sepals purplish green, ovate to broadly<br />
deltoid, ca. 0.3 mm. Petals 2–3 mm. Male flowers subsessile;<br />
rudimentary gynoecium shortly club-shaped, 2-cleft to entire.<br />
Fruit pedicel 1–3 mm; follicles red when mature, ca. 5 mm in<br />
diam., oil glands numerous and slightly protruding. Seeds ca. 4<br />
mm in diam. Fl. May, fr. Sep.<br />
● Upland open forests; 500–1000 m. Chongqing (Nanchuan,<br />
Zhongxian), Guizhou (Zheng’an).
8. Zanthoxylum leiboicum C. C. Huang, Acta Phytotax. Sin.<br />
16(2): 82. 1978.<br />
雷波花椒 lei bo hua jiao<br />
Zanthoxylum calcicola C. C. Huang var. macrocarpum C.<br />
C. Huang.<br />
Shrubs to 2 m tall, erect. Branchlets and leaf rachises with<br />
prickles. Leaves 17–31-foliolate; petiolules 1–3 mm, puberulent;<br />
leaflet blades subopposite to alternate, broadly ovate to<br />
obovate with rounded or cuspidate apex, or ovate-obdeltoid<br />
with abrupt apex, 2–4 × 1.5–2.5 cm, thickly papery, oil glands<br />
inconspicuous, midvein impressed or apically plane, basally<br />
puberulent, margin apically crenulate. Inflorescences axillary,<br />
subracemosely cymose, 4–10 cm. Fruit pedicel 1–3 mm; follicles<br />
dark blackish brown when dry, 0.5–1.5 cm in diam.,<br />
rugulose, oil glands inconspicuous, apex beaked. Seeds ca. 5<br />
mm in diam. Fr. Jul.<br />
● Thickets on dry hill slopes, river valleys; 400–1500 m. SW Sichuan.<br />
9. Zanthoxylum laetum Drake, J. Bot. (Morot) 6: 274. 1892.<br />
拟蚬壳花椒 ni xian ke hua jiao<br />
Zanthoxylum dissitoides C. C. Huang.<br />
Woody climbers to 4 m tall. Trunk, branches, branchlets,<br />
and leaf rachises with prickles. Rachis of young leaves,<br />
petiolules, and midvein of leaflet blades puberulent. Leaves<br />
5–13-foliolate; petiolules 2–6 mm; leaflet blades alternate,<br />
ovate, ovate-elliptic, or rarely oblong, 8–15 × 4–7 cm, adaxially<br />
lustrous, oil glands sparse, inconspicuous, and pellucid, midvein<br />
plane to adaxially impressed, secondary veins 9–14 on each side<br />
of midvein, base symmetric or rarely oblique, margin entire,<br />
apex acuminate. Inflorescences axillary. Flowers 4-merous.<br />
Pedicel ca. 4 mm. Perianth in 2 series. Sepals pale purplish<br />
green, narrowly ovate, to 1 mm. Petals yellowish green, broadly<br />
ovate, ca. 4 mm. Male flowers: filaments pale yellowish green,<br />
linear, 6–8 mm; rudimentary gynoecium terete, 4-lobed. Female<br />
flowers: staminodes shortly linear. Fruit pedicel 2–5 mm;<br />
follicles reddish brown with purplish red margin, 7–9 mm in<br />
diam., with a flange, oil glands impressed when dry, apex<br />
beaked. Seeds brownish black, subglobose, 6–7 mm in diam. Fl.<br />
Mar–May, fr. Sep–Dec.<br />
Moist thickets and forests; 500–1300 m. Guangdong (Zhanjiang),<br />
SW Guangxi, Hainan, S Yunnan [N Vietnam].<br />
10. Zanthoxylum scandens Blume, Bijdr. 249. 1825.<br />
花椒簕 hua jiao le<br />
Fagara chinensis Merrill; F. cuspidata (Champion ex<br />
Bentham) Engler; F. cyrtorhachia Hayata; F. laxifoliolata Hayata;<br />
F. leiorhachia Hayata; F. scandens (Blume) Engler; Zanthoxylum<br />
chinense (Merrill) Chung; Z. cuspidatum Champion ex<br />
Bentham; Z. cyrtorhachium (Hayata) C. C. Huang; Z. laxifoliolatum<br />
(Hayata) C. C. Huang; Z. leiorhachium (Hayata) C. C.<br />
Huang.<br />
Shrubs or woody climbers. Trunks, branches, branchlets,<br />
and leaf rachises with prickles. Leaves 5–25-foliolate; leaflet<br />
<strong>RUTACEAE</strong><br />
blades alternate or opposite on distal part of leaf rachis, ovate,<br />
ovate-elliptic, or obliquely oblong, 4–10 × 1.5–4 cm, both<br />
surfaces black or blackish brown when dry, abaxially lustrous,<br />
oil glands inconspicuous, midvein impressed and glabrous or<br />
plane and puberulent, base oblique to subsymmetric and obtuse<br />
to broadly cuneate, margin entire or apically crenulate, apex<br />
mucronate, caudate, cuspidate, or long acuminate and with an<br />
obtuse to retuse tip. Inflorescences terminal or axillary. Flowers<br />
4-merous. Perianth in 2 series. Sepals pale purplish green,<br />
broadly ovate, ca. 0.5 mm. Petals pale yellowish green, 2–3 mm.<br />
Male flowers: stamens 4, 3–4 mm; connective with an oil gland<br />
at apex; rudimentary gynoecium subtended by pulvinate disk,<br />
2–4-lobed. Female flowers: carpels 3 or 4; staminodes ligulate.<br />
Fruit follicles purplish red, grayish brown to black when dry,<br />
4.5–5.5 mm in diam., oil glands slightly protruding, plane, or<br />
impressed, apex beaked. Seeds subglobose, 4–5 mm in diam. Fl.<br />
Mar–May, fr. Jul–Aug. 2n = 68.<br />
Lowland forests, open forests, thickets; near sea level to 1500 m. S<br />
Anhui, Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Hainan,<br />
Hubei, Hunan, Jiangxi, Sichuan, Taiwan, Yunnan, Zhejiang [India, Indonesia,<br />
Japan (Ryukyu Islands), Malaysia, Myanmar].<br />
11. Zanthoxylum kwangsiense (Handel-Mazzetti) Chun ex C.<br />
C. Huang, Acta Phytotax. Sin. 6: 71. 1957 [“kwangsiensis”].<br />
广西花椒 guang xi hua jiao<br />
Fagara kwangsiensis Handel-Mazzetti, Sinensia 3. 186.<br />
1933.<br />
Woody climbers. Young branchlets, leaf rachises, and inflorescences<br />
pubescent. Branchlets unarmed. Leaves 5–9-foliolate;<br />
leaflet blades subopposite or rarely alternate, lanceolate,<br />
ovate, or oblanceolate, 4–10 × 2–3 cm, papery, midvein abaxially<br />
pubescent and adaxially impressed and puberulent, base<br />
broadly cuneate, margin subentire or apically crenate, apex<br />
mucronate to caudate. Inflorescences axillary or terminal,<br />
thyrsiform, 2–15 cm. Fruit pedicel 5–10 mm; follicles ca. 5 mm,<br />
apex beaked. Seeds subglobose, ca. 4 mm in diam.<br />
● Hillside thickets and open forests; 600–700 m. Chongqing<br />
(Fengjie, Wushan), N Guangxi, S Guizhou (Libo).<br />
Hartley (J. Arnold Arbor. 47: 177. 1966) placed Fagara kwangsiensis<br />
in synonymy of Zanthoxylum scandens. Zanthoxylum kwangsiense<br />
was inadvertently omitted.<br />
12. Zanthoxylum khasianum J. D. Hooker, Fl. Brit. India 1:<br />
494. 1875.<br />
云南花椒 yun nan hua jiao<br />
Zanthoxylum yunnanense C. C. Huang.<br />
Shrubs or trees, to 3 m tall. Branchlets gray, with prickles.<br />
Young branchlets, inflorescences, leaf rachises, and adaxial surface<br />
of leaflet blades with long grayish yellow trichomes. Leaves<br />
5–13-foliolate; petiolules 4–10 mm, winged; leaflet blades alternate<br />
or rarely subopposite, ovate to elliptic, asymmetric, 3.5–9<br />
× 2–4 cm, papery, midvein adaxially impressed, secondary veins<br />
10–16 on each side of midvein, base cuneate, margin crenulate<br />
or apically crenulate-serrulate, apex caudate. Inflorescences terminal<br />
or axillary, thyrsiform; bracts minute. Flowers 4-merous.<br />
Perianth in 2 series. Sepals ovate, ca. 0.5 mm, margin ciliolate.<br />
57
58<br />
Petals long elliptic, 2–3 mm. Female flowers: staminodes ca. 1<br />
mm. Fruit pedicel 7–10 mm, villous; follicles oblique, 5–6 mm,<br />
apex beaked. Fl. May, fr. Jul–Aug.<br />
Hillside thickets and open forests; 1500–2500 m. W Yunnan<br />
[India].<br />
Hartley (J. Arnold Arbor. 47: 177. 1966) placed Zanthoxylum<br />
khasianum and Z. yunnanense in synonymy of Z. scandens.<br />
13. Zanthoxylum multijugum Franchet, Pl. Delavay. 124.<br />
1889.<br />
多叶花椒 duo ye hua jiao<br />
Fagara mengtzeana Hu; F. multijuga (Franchet) Hu;<br />
Zanthoxylum multifoliolatum Hemsley.<br />
Woody climbers. Young branchlets pale reddish brown,<br />
glabrous. Stems, branches, and leaf rachises with prickles.<br />
Leaves 19–51-foliolate; leaflet blades subsessile, subopposite to<br />
alternate, lanceolate, elliptic, or ovate, asymmetric, 1.5–5 ×<br />
0.5–2 cm, oil glands numerous and pellucid, midvein puberulent<br />
when young and adaxially slightly ridged to plane, margin<br />
crenate, apex blunt, rounded, or mucronate with a blunt tip.<br />
Inflorescences axillary. Flowers 4(or 5)-merous. Perianth in 2<br />
series. Sepals ovate, to 1 mm, apex blunt to rounded. Petals pale<br />
yellowish green, oblong, ca. 2 mm. Male flowers: stamens 4;<br />
anthers broadly ovate; connective with an oil gland at apex;<br />
rudimentary gynoecium long conic. Female flowers: pedicel 2–5<br />
mm, to 1 cm in fruit. Fruit follicles brownish red, ca. 5 mm in<br />
diam., apex beaked. Seeds 4–4.5 mm in diam. Fl. May–Jun, fr.<br />
Oct–Nov.<br />
● Hillside thickets and open forests; 1500–2200 m. Guizhou, C and<br />
N Yunnan.<br />
14. Zanthoxylum calcicola C. C. Huang, Acta Phytotax. Sin. 6:<br />
65. 1957.<br />
石山花椒 shi shan hua jiao<br />
Shrubs or woody climbers, 2–3 m tall. Branchlets and leaf<br />
rachises with prickles. Branchlets lenticellate, puberulent.<br />
Leaves 9–31-foliolate; petiolules, leaf rachises adaxially, and<br />
leaflet blades adaxially on midvein puberulent to pubescent;<br />
petiolules 1–3 mm; leaflet blades lanceolate, obliquely oblong,<br />
or rarely ovate, 2–5 × 0.7–2.5 cm, oil glands inconspicuous,<br />
midvein adaxially plane or basally impressed, secondary veins<br />
9–12 on each side of midvein, base oblique and subrounded to<br />
broadly cuneate, margin subapically crenulate, apex acute or<br />
shortly acuminate, glandular retuse at tip. Inflorescences axillary.<br />
Flowers 4(or 5)-merous. Perianth in 2 series. Sepals 0.5–1<br />
mm. Petals 2–3 mm. Infructescences paniculate, 3–6 cm. Fruit<br />
pedicel ca. 5 mm; follicles 5–6 mm, oil glands impressed when<br />
dry. Seeds 3.5–4.5 mm in diam. Fl. Mar–Apr, fr. Sep–Nov.<br />
● Upland open forests; 500–1600 m. W Guangxi, SW Guizhou, SE<br />
Yunnan.<br />
15. Zanthoxylum yuanjiangense C. C. Huang, Acta Phytotax.<br />
Sin. 16(2): 81. 1978.<br />
元江花椒 yuan jiang hua jiao<br />
Woody climbers. Branchlets with prickles. Leaf rachises,<br />
<strong>RUTACEAE</strong><br />
inflorescences, and adaxial surface of petiolules minutely<br />
puberulent but other parts glabrous. Leaves 7–15-foliolate;<br />
petiolules 2–4 mm; leaflet blades alternate to subopposite,<br />
elliptic, ovate, or rarely obovate, 6–10 × 2.5–4 cm, subleathery,<br />
oil glands inconspicuous on mature leaflets, midvein adaxially<br />
impressed, secondary and tertiary veins ridged on both surfaces,<br />
base rounded to broadly cuneate, margin entire, apex shortly<br />
caudate. Inflorescences terminal or axillary, thyrsiform, to 26<br />
cm. Flowers 4-merous. Perianth in 2 series. Sepals purplish<br />
green, broadly ovate, ca. 1 mm. Petals oblong, 3–4 mm. Stamens<br />
4; connective with an oil gland at apex. Infructescences ca. 12<br />
cm wide. Fruit follicles dark brownish black, ca. 6 mm in diam.,<br />
oil glands inconspicuous, apex beaked. Seeds 5–5.5 mm in diam.<br />
Fl. May, fr. Nov.<br />
● Upland thickets and moist secondary forests; 400–600 m. S<br />
Yunnan.<br />
16. Zanthoxylum dissitum Hemsley, J. Linn. Soc., Bot. 23:<br />
106. 1886.<br />
蚬壳花椒 xian ke hua jiao<br />
Woody climbers. Stem grayish white. Branchlets, leaf<br />
rachises, and midvein of leaflet blades with brownish red<br />
prickles. Leaves (3 or)5–9-foliolate; petiolules 3–10 mm; leaflet<br />
blades alternate to subopposite, symmetric or rarely oblique, to<br />
20 × 1–8 cm, thickly papery to subleathery, glabrous, oil glands<br />
inconspicuous, midvein adaxially impressed, margin entire,<br />
repand, denticulate, or serrate, apex acuminate to caudate.<br />
Inflorescences axillary, to 10 cm; rachis pubescent. Flowers<br />
4-merous. Perianth in 2 series. Sepals purplish green, broadly<br />
ovate, less than 1 mm. Petals pale yellowish green, broadly<br />
ovate, 4–5 mm. Male flowers: pedicel 1–3 mm; stamens 4;<br />
filaments 5–6 mm; rudimentary gynoecium 4-lobed. Female<br />
flowers without staminodes. Fruit follicles brown, densely<br />
pressed together in infructescence, 1–1.5 cm; outer part of<br />
pericarp (exocarp and mesocarp) extended beyond endocarp on<br />
each side of suture in dehisced fruit, smooth. Seeds 8–10 mm in<br />
diam. Fl. Apr–May or Nov–Dec, fr. Sep–Nov.<br />
● Upland thickets and open forests, forests; 300–2600 m. S Gansu,<br />
Guangdong, Guangxi, Guizhou, Hainan, SW Henan, Hubei, Hunan, S<br />
Shaanxi, Sichuan, Yunnan.<br />
1a. Branchlets with congested straight<br />
spines ..................................................... 16c. var. hispidum<br />
1b. Branchlets without congested straight spines.<br />
2a. Margin of leaflet blades acutely<br />
serrate .................................... 16d. var. acutiserratum<br />
2b. Margin of leaflet blades entire,<br />
repand, or denticulate.<br />
3a. Leaflet blades ca. 6 × as long<br />
as wide, margin entire ............ 16a. var. dissitum<br />
3b. Leaflet blades 7–10 × as long<br />
as wide; margin repand or<br />
denticulate .......................... 16b. var. lanciforme<br />
16a. Zanthoxylum dissitum var. dissitum<br />
蚬壳花椒(原变种) xian ke hua jiao (yuan bian zhong)<br />
Fagara dissita (Hemsley) Engler; Zanthoxylum bodinieri<br />
H. Léveillé.
Branchlets without congested straight spines. Leaflet<br />
blades narrowly elliptic, broadly elliptic, or subrounded, margin<br />
entire. Fl. Apr–May, fr. Sep–Oct.<br />
● Upland thickets; 300–2600 m. S Gansu, Guangdong, Guangxi,<br />
Guizhou, Hainan, SW Henan, Hubei, Hunan, S Shaanxi, Sichuan,<br />
Yunnan.<br />
16b. Zanthoxylum dissitum var. lanciforme C. C. Huang,<br />
Acta Phytotax. Sin. 16(2): 82. 1978.<br />
长叶蚬壳花椒 chang ye xian ke hua jiao<br />
Leaflet blades narrowly linear-lanceolate, 10–20 × 1–2 cm,<br />
base attenuate, margin repand or denticulate, apex acuminate. Fl.<br />
Nov–Dec.<br />
● Forests; ca. 1000 m. Guangxi (Damiao Shan), Guizhou.<br />
16c. Zanthoxylum dissitum var. hispidum (Reeder & S. Y.<br />
Cheo) C. C. Huang, Acta Phytotax. Sin. 6: 78. 1957.<br />
刺蚬壳花椒 ci xian ke hua jiao<br />
Fagara dissita var. hispida Reeder & S. Y. Cheo, J. Arnold<br />
Arbor. 32: 69. 1951.<br />
Branchlets with congested straight spines. Inflorescence<br />
rachises with prickles. Fl. Apr–May, fr. Sep–Nov.<br />
● Upland open forests; 1500–1800 m. C and SW Sichuan, NE<br />
Yunnan (Suijiang).<br />
16d. Zanthoxylum dissitum var. acutiserratum C. C. Huang,<br />
Acta Phytotax. Sin. 16(2): 82. 1978.<br />
针边蚬壳花椒 zhen bian xian ke hua jiao<br />
Leaflet blades oblong, 6–10 × 2–3 cm, margin acutely<br />
serrate. Fl. Apr–May, fr. Aug–Sep.<br />
● Upland open forests; ca. 2400 m. Sichuan (Ganluo).<br />
17. Zanthoxylum collinsiae Craib, Bull. Misc. Inform. Kew<br />
1926: 165. 1926 [“collinsae”].<br />
糙叶花椒 cao ye hua jiao<br />
Zanthoxylum asperum C. C. Huang; Z. scabrum Guillaumin.<br />
Woody climbers. Branchlets with prickles. Younger<br />
branchlets, leaf rachises, petiolules, and abaxial surface of leaflet<br />
blades villous. Leaves 5–9-foliolate; petiolules 2–4 mm; leaflet<br />
blades opposite, broadly ovate to ovate-elliptic, 7–19 × 5–8 cm,<br />
papery, black to blackish brown when dry, slightly lustrous,<br />
adaxially hirsutulous, midvein with prickles, secondary veins<br />
8–12 on each side of midvein, base oblique and rounded to<br />
subcordate, margin entire to crenate, apex mucronate, caudate,<br />
or rarely acuminate and with a retuse tip and an oil gland.<br />
Inflorescences axillary, 3–5 cm. Flowers 4-merous. Pedicel<br />
puberulent. Perianth in 2 series. Sepals puberulent, ca. 1 mm.<br />
Petals ca. 3 mm. Male flowers: stamens 4; rudimentary<br />
gynoecium ca. 1.5 mm. Fruit pedicel 2–4 mm; follicles ca. 6 mm<br />
in diam., pubescent, oil glands impressed when dry. Seeds 4.5–5<br />
mm in diam. Fl. Apr–May, fr. Sep–Oct.<br />
Hillside open forests and thickets; 500–1000 m. NW Guangxi, SW<br />
Guizhou, S Yunnan [Laos, NE Thailand, N Vietnam].<br />
<strong>RUTACEAE</strong><br />
Hartley (J. Arnold Arbor. 47: 181. 1966) placed Zanthoxylum collinsiae,<br />
Z. asperum, and Z. scabrum in the synonymy of Z. nitidum.<br />
18. Zanthoxylum liboense C. C. Huang, Guihaia 7: 6. 1987.<br />
荔波花椒 li bo hua jiao<br />
Shrubs or woody climbers, to 1.5 m tall or long. Branchlets<br />
and leaf rachises with prickles. Older branchlets brownish black,<br />
rugulose, pubescent. Leaf rachises, inflorescences, and petiolules<br />
pubescent. Leaves 5–9-foliolate; petiolules 2–5 mm; leaflet<br />
blades subopposite to alternate, ovate to elliptic, 6–8 × 2.5–3.5<br />
cm, subleathery, abaxially pubescent, midvein adaxially plane or<br />
apically impressed and puberulent, secondary veins 10–13 on<br />
each side of midvein, base rounded, margin entire, apex<br />
mucronate to acuminate. Infructescences axillary, 3–4 cm. Fruit<br />
pedicel 6–10 mm; fruit 4-carpelled, usually only 2 or 3 carpels<br />
developing; follicles dark brownish black when dry, 7–8 mm in<br />
diam., pubescent when young but perhaps only on undeveloped<br />
carpels, oil glands inconspicuous, apex beaked. Seeds 5–6 mm<br />
in diam. Fr. Aug–Sep.<br />
● Forests, thickets; 700–800 m. S Guizhou (Libo).<br />
19. Zanthoxylum echinocarpum Hemsley, Ann. Bot. (Oxford)<br />
9: 149. 1895.<br />
刺壳花椒 ci ke hua jiao<br />
Woody climbers. Young branchlets, leaf rachises, petiolules,<br />
and leaflet blades abaxially on midvein pubescent. Branchlets<br />
and leaves with prickles. Leaves (3 or)5–11-foliolate;<br />
petiolules 2–5 mm; leaflet blades alternate or opposite, ovate,<br />
ovate-elliptic, or long elliptic, 7–13 × 2.5–5 cm, thickly leathery,<br />
base rounded to cordate, margin entire or subentire. Inflorescences<br />
axillary or terminal. Flowers 4-merous. Perianth in 2<br />
series. Sepals pale purplish green. Petals 2–3 mm. Male flowers:<br />
stamens 4. Female flowers: carpels (3 or)4(or 5). Fruit pedicel<br />
obsolete or to 3 mm; follicles with prickles to 1 cm. Seeds 6–8<br />
mm in diam. Fl. Apr–May, fr. Oct–Dec.<br />
● Forests, hillside open forests and thickets; 200–1800 m. N<br />
Guangdong, Guangxi, Guizhou, W Hubei, Hunan, Sichuan, SE Yunnan.<br />
1a. Abaxial surface of leaflet blades<br />
glabrous except for pubescent<br />
midvein ......................................... 19a. var. echinocarpum<br />
1b. Abaxial surface of leaflet blades<br />
villous ............................................... 19b. var. tomentosum<br />
19a. Zanthoxylum echinocarpum var. echinocarpum<br />
刺壳花椒(原变种) ci ke hua jiao (yuan bian zhong)<br />
Fagara echinocarpa (Hemsley) Engler.<br />
Leaflet blades abaxially glabrous except for pubescent<br />
midvein. Prickles of follicles pubescent.<br />
● Forests; 200–1000 m. N Guangdong, Guangxi, Guizhou, W<br />
Hubei, Hunan, Sichuan, SE Yunnan.<br />
19b. Zanthoxylum echinocarpum var. tomentosum C. C.<br />
Huang, Acta Phytotax. Sin. 16(2): 82. 1978.<br />
毛刺壳花椒 mao ci ke hua jiao<br />
59
60<br />
Branchlets, leaf rachises, petioles, abaxial surface of leaflet<br />
blades, and inflorescence rachises villous. Prickles of follicles<br />
pilose when mature.<br />
● Hillside open forests and thickets; 300–1800 m. NW Guangxi<br />
(Tian’e), SW Guizhou (Anlong), SE Yunnan.<br />
20. Zanthoxylum oxyphyllum Edgeworth, Trans. Linn. Soc.<br />
London 20: 42. 1846.<br />
尖叶花椒 jian ye hua jiao<br />
Fagara oxyphylla (Edgeworth) Engler; Zanthoxylum<br />
alpinum C. C. Huang; Z. taliense C. C. Huang; Z. tibetanum C.<br />
C. Huang.<br />
Shrubs or small trees. Branchlets and leaf rachises with<br />
prickles. Leaf rachises adaxially and midvein of leaflet blades<br />
adaxially pubescent. Old leaves subglabrous. Leaves 11–19-<br />
foliolate; petiolules to 2 mm; leaflet blades alternate or opposite,<br />
lanceolate or rarely ovate, 5–12 × 1.5–2.5 cm, abaxially gray<br />
when dry, oil glands numerous, midvein impressed adaxially,<br />
secondary veins anastomosing near margin, reticulate veinlets<br />
ridged when dry, base cuneate, margin serrulate, apex acuminate.<br />
Inflorescences terminal, cymose-corymbose, to 30-flowered.<br />
Perianth in 2 series. Sepals 4, purplish green. Petals ca. 3<br />
mm. Male flowers: rudimentary gynoecium 2–4-parted, lobes<br />
linear. Fruit pedicel 1–1.5 cm, 1–1.5 mm in diam.; follicles<br />
purplish red, 6–7 mm, oil glands impressed when dry, apex<br />
beaked. Seeds ca. 5 mm in diam. Fl. May–Jun, fr. Sep–Oct. 2n =<br />
72.<br />
Open forests, forest margins; 1800–2900 m. S Xizang, W Yunnan<br />
[Bhutan, NE India, Myanmar, Nepal].<br />
21. Zanthoxylum stenophyllum Hemsley, Ann. Bot. (Oxford)<br />
9: 147. 1895.<br />
狭叶花椒 xia ye hua jiao<br />
Fagara stenophylla (Hemsley) Engler; Zanthoxylum pashanense<br />
N. Chao.<br />
Shrubs or small trees. Stems and branches grayish white.<br />
Young branchlets pale purplish red. Branchlets and midvein of<br />
leaflet blades abaxially with prickles. Leaves 9–23-foliolate;<br />
petiolules 1–3 mm, adaxially pubescent; leaflet blades alternate,<br />
lanceolate and 2–11 × 1–4 cm, narrowly lanceolate and 2–3.5 ×<br />
0.4–0.7 cm, or ovate and 8–16 × 6–8 mm, oil glands inconspicuous,<br />
midvein adaxially ridged to plane and puberulent but<br />
glabrous in fruit, reticulate veinlets ridged on both surfaces, base<br />
cuneate to subrounded, margin crenulate, apex acuminate to<br />
mucronate. Inflorescences terminal, cymose-corymbiform, to<br />
30-flowered. Flowers 4-merous. Perianth in 2 series. Sepals ca.<br />
0.5 mm. Petals 2.5–3 mm. Male flowers: pedicel 2–5 mm;<br />
stamens 4; connective without an oil gland at apex; rudimentary<br />
gynoecium disciform; styles coherent. Female flowers: pedicel<br />
0.6–1.5 cm; staminodes absent. Fruit pedicel purplish red, 1–3<br />
cm, glabrous; follicles pale purplish red to dark red, 4.5–5 cm in<br />
diam., oil glands impressed when dry, apex beaked. Seeds ca. 4<br />
mm in diam. Fl. May–Jun, fr. Aug–Sep.<br />
● Upland thickets; 700–2400 m. S Gansu (Chengxian, Huixian), W<br />
Henan, W Hubei, NE Hunan, SW Shaanxi, Sichuan.<br />
<strong>RUTACEAE</strong><br />
22. Zanthoxylum esquirolii H. Léveillé, Repert. Spec. Nov.<br />
Regni Veg. 13: 266. 1914.<br />
贵州花椒 gui zhou hua jiao<br />
Fagara chaffanjonii (H. Léveillé) Handel-Mazzetti; F.<br />
esquirolii (H. Léveillé) Handel-Mazzetti; Zanthoxylum chaffanjonii<br />
H. Léveillé.<br />
Shrubs or small trees. Branchlets and leaf rachises with<br />
prickles. Branchlets pale purplish red and glaucous when dry.<br />
Leaves 5–13-foliolate; petiolules 3–6 mm; leaflet blades alternate,<br />
ovate, lanceolate, or rarely broadly ovate, 3–10 × 1.5–4.5<br />
cm, oil glands inconspicuous, midvein adaxially impressed, base<br />
subrounded to broadly cuneate, margin crenulate or entire<br />
toward base, apex obliquely caudate with a retuse tip. Inflorescences<br />
terminal, cymose-corymbiform, to 30-flowered.<br />
Flowers 4-merous. Perianth in 2 series. Petals ca. 3 mm. Female<br />
flowers (3 or)4-carpelled. Fruit pedicel to 4.5 mm, 0.5–1 mm in<br />
diam.; follicles purplish red, ca. 5 mm in diam., oil glands<br />
impressed, apex beaked. Seeds ca. 4 mm in diam. Fl. May–Jun,<br />
fr. Sep–Nov.<br />
● Upland open forests and thickets; 700–3200 m. Guizhou, Sichuan,<br />
Yunnan.<br />
23. Zanthoxylum avicennae (Lamarck) Candolle, Prodr. 1:<br />
726. 1824.<br />
簕 花椒 le dang hua jiao<br />
Fagara avicennae Lamarck, Encycl. 2: 445. 1788; Zanthoxylum<br />
avicennae var. tonkinense Pierre; Z. avicennae var.<br />
touranense Pierre; Z. lentiscifolium Champion ex Bentham.<br />
Trees to 15 m tall, deciduous. Branchlets and leaves<br />
glabrous, with prickles. Leaves 11–21-foliolate; rachis winged;<br />
leaflet blades opposite or rarely subopposite, obliquely ovate,<br />
rhomboidal, obovate, or falcate, 2.5–7 × 1–3 cm, oil glands<br />
visible on fresh leaves or inconspicuous, margin entire or apically<br />
crenate, apex mucronate to blunt. Inflorescences terminal,<br />
many flowered; rachis purplish red. Flowers 5-merous. Pedicel<br />
purplish red. Perianth in 2 series. Sepals green, broadly ovate.<br />
Petals yellowish white, ca. 2.5 mm. Male flowers: stamens 5;<br />
rudimentary gynoecium disciform, 2-lobed. Female flowers:<br />
carpels 2(or 3); staminodes small. Fruit pedicel 3–6 mm; follicles<br />
pale purplish red, 4–5 mm in diam., oil glands numerous,<br />
large, and slightly protruding, apex not beaked. Seeds 3.5–4.5<br />
mm in diam. Fl. Jun–Aug, fr. Oct–Dec.<br />
Secondary forests in lowland flat areas, hillsides, valleys; 400–700<br />
m. S Fujian, Guangdong, Guangxi, Hainan, S Yunnan [India, Indonesia,<br />
Malaysia, Philippines, Thailand, Vietnam].<br />
24. Zanthoxylum micranthum Hemsley, Ann. Bot. (Oxford)<br />
9: 147. 1895.<br />
小花花椒 xiao hua hua jiao<br />
Fagara biondii Pampanini; F. micrantha (Hemsley) Engler.<br />
Trees to 15 m tall, deciduous. Branchlets glabrous, with<br />
prickles. Leaves 9–17-foliolate; petiolules 1.5–5 mm; leaflet<br />
blades opposite or on basal part of rachis subopposite, lanceo-
late, 5–8 × 1–3 cm, oil glands numerous, midvein impressed,<br />
secondary veins 8–12 on each side of midvein, base symmetrically<br />
or obliquely rounded to broadly cuneate, margin<br />
crenate, apex acuminate. Inflorescences terminal, many flowered.<br />
Flowers 5-merous. Perianth in 2 series. Sepals broadly<br />
ovate, ca. 0.3 mm wide. Petals pale yellowish white, 1.5–2 mm.<br />
Male flowers: stamens 5, ca. 3 mm; rudimentary gynoecium<br />
disciform, 3-lobed or not divided. Female flowers 3(or 4)-carpelled.<br />
Fruit follicles pale purplish red but pale yellow to grayish<br />
brown when dry, ca. 5 mm in diam., oil glands small, apex not<br />
beaked. Seeds to 4 mm. Fl. Jul–Aug, fr. Oct–Nov.<br />
● Hillside open forests; 300–1200 m. Guizhou, SW Henan, W<br />
Hubei, Hunan, Sichuan, Yunnan.<br />
25. Zanthoxylum ailanthoides Siebold & Zuccarini, Abh.<br />
Math.-Phys. Cl. Königl. Bayer. Akad. Wiss. 4(2): 138. 1845.<br />
椿叶花椒 chun ye hua jiao<br />
Trees to 15 m tall, deciduous. Branchlets and inflorescence<br />
rachises glabrous, with prickles. Leaves 11–27-foliolate; leaflet<br />
blades opposite, narrowly lanceolate but subovate basally on<br />
rachis, 7–18 × 2–6 cm, abaxially grayish green or glaucescent,<br />
oil glands numerous, midvein adaxially impressed, secondary<br />
veins 11–16 on each side of midvein, base symmetrically or<br />
subobliquely rounded, margin crenate, apex acuminate. Inflorescences<br />
terminal, many flowered. Flowers 5-merous, subsessile.<br />
Perianth in 2 series. Sepals broadly triangular, ca. 0.8 mm.<br />
Petals pale yellowish white, ca. 2.5 mm. Male flowers: stamens<br />
5; rudimentary gynoecium disciform, 2- or 3-lobed. Female<br />
flowers (3 or)4-carpelled. Fruit pedicel 1–3 mm; follicles pale<br />
reddish brown but pale gray to brownish gray when dry, ca. 4.5<br />
mm in diam., oil glands numerous, impressed when dry, apex<br />
not beaked. Seeds ca. 4 mm in diam. Fl. Aug–Sep, fr. Oct–Dec.<br />
Upland thickets; 300–1500 m. Fujian, Guangdong, Guangxi,<br />
Guizhou, S Jiangxi, SE Sichuan, Taiwan, SE Yunnan, Zhejiang [Japan<br />
(including Bonin and Ryukyu Islands), Korea, Philippines].<br />
1a. Leaflet blades glabrous on both surfaces<br />
........................................................... 25a. var. ailanthoides<br />
1b. Leaflet blades abaxially pubescent ..... 25b. var. pubescens<br />
25a. Zanthoxylum ailanthoides var. ailanthoides<br />
椿叶花椒(原变种) chun ye hua jiao (yuan bian zhong)<br />
Fagara ailanthoides (Siebold & Zuccarini) Engler; F.<br />
boninshimae G. Koidzumi; F. emarginella (Miquel) Engler; F.<br />
hemsleyana (Makino) Makino; Zanthoxylum ailanthoides var.<br />
inerme Rehder & E. H. Wilson; Z. emarginellum Miquel; Z.<br />
hemsleyanum Makino.<br />
Leaflet blades glabrous on both surfaces, abaxially<br />
glaucous.<br />
Upland thickets; 300–1500 m. Fujian, Guangdong, Guangxi,<br />
Guizhou, S Jiangxi, SE Sichuan, Taiwan, SE Yunnan, Zhejiang [Japan<br />
(including Bonin and Ryukyu Islands), Korea, Philippines].<br />
Zanthoxylum hemsleyanum Makino was based on Z. emarginellum<br />
sensu Hemsley (1895), not Miquel (1867).<br />
25b. Zanthoxylum ailanthoides var. pubescens Hatusima,<br />
Acta Phytotax. Geobot. 4: 210. 1935.<br />
<strong>RUTACEAE</strong><br />
毛椿叶花椒 mao chun ye hua jiao<br />
Leaf rachises and abaxial surface of leaflet blades pubescent.<br />
● Taiwan.<br />
This taxon is not recognized as a separate variety in Fl. Taiwan, ed.<br />
2, 3: 537. 1993.<br />
26. Zanthoxylum myriacanthum Wallich ex J. D. Hooker, Fl.<br />
Brit. India 1: 496. 1875.<br />
大叶臭花椒 da ye chou hua jiao<br />
Trees to 15 m tall, deciduous. Branchlets toward apex and<br />
rachis of inflorescences with prickles. Leaves without prickles,<br />
7–17-foliolate; leaflet blades opposite, broadly ovate, ovate-<br />
elliptic, or oblong, but suborbicular basally on rachis, 10–20 ×<br />
4–10 cm, both surfaces glabrous, oil glands numerous, large,<br />
turning red or blackish brown and slightly protruding when dry,<br />
midvein adaxially impressed, base symmetrically or obliquely<br />
rounded to broadly cuneate, margin crenulate-serrulate. Inflorescences<br />
terminal, to 35 × 30 cm, many flowered. Flowers<br />
5-merous. Perianth in 2 series. Sepals broadly ovate, ca. 0.3 mm.<br />
Petals white, ca. 2.5 mm. Male flowers: stamens 5; rudimentary<br />
gynoecium disciform, 3-lobed. Female flowers: carpels (2<br />
or)3(or 4); staminodes small. Fruit follicles reddish brown, ca.<br />
4.5 mm in diam., oil glands numerous, apex not beaked. Seeds<br />
ca. 4 mm in diam. Fl. Jun–Aug, fr. Sep–Nov.<br />
Hillside forests, forests; 200–1500 m. Fujian, Guangdong, Guangxi,<br />
SE Guizhou, Hainan, S Hunan, Jiangxi, S Yunnan, S Zhejiang [Bhutan,<br />
India, Indonesia, Malaysia, Myanmar, Philippines, Vietnam].<br />
1a. Petiolules, leaflet blades, leaf rachises,<br />
and inflorescences not villous ...... 26a. var. myriacanthum<br />
1b. Petiolules, leaflet blades, leaf rachises,<br />
and inflorescences villous ................... 26b. var. pubescens<br />
26a. Zanthoxylum myriacanthum var. myriacanthum<br />
大叶臭花椒(原变种) da ye chou hua jiao (yuan bian zhong)<br />
Euodia odorata H. Léveillé; Fagara diabolica (Elmer)<br />
Engler; F. gigantea Handel-Mazzetti; F. myriacantha (Wallich<br />
ex J. D. Hooker) Engler; F. odorata (H. Léveillé) Handel-<br />
Mazzetti; F. rhetsoides (Drake) Reeder & S. Y. Cheo;<br />
Zanthoxylum diabolicum Elmer; Z. giganteum (Handel-Mazzetti)<br />
Rehder; Z. odoratum (H. Léveillé) H. Léveillé; Z. rhetsoides<br />
Drake.<br />
Leaf rachises, petiolules, leaflet blades, and inflorescence<br />
rachises not villous.<br />
Hillside forests; 200–1500 m. Fujian, Guangdong, Guangxi, SE<br />
Guizhou, Hainan, S Hunan, Jiangxi, S Yunnan, S Zhejiang [Bhutan,<br />
India, Indonesia, Malaysia, Myanmar, Philippines, Vietnam].<br />
26b. Zanthoxylum myriacanthum var. pubescens (C. C.<br />
Huang) C. C. Huang, Guihaia 11: 9. 1991.<br />
毛大叶臭花椒 mao da ye chou hua jiao<br />
Zanthoxylum rhetsoides var. pubescens C. C. Huang, Acta<br />
Phytotax. Sin. 6: 48. 1957; Z. utile C. C. Huang.<br />
61
62<br />
Leaf rachises, petiolules, leaflet blades, and inflorescence<br />
rachises villous.<br />
● Forests; ca. 1400 m. S Yunnan (Xishuangbanna).<br />
27. Zanthoxylum molle Rehder, J. Arnold Arbor. 8: 150. 1927.<br />
朵花椒 duo hua jiao<br />
Euodia mollicoma Hu & F. H. Chen; Fagara mollis<br />
(Rehder) Reeder & S. Y. Cheo.<br />
Trees to 10 m tall, deciduous. Bark brownish black. Young<br />
branches and rachis of inflorescences with prickles. Young<br />
branches dark purplish red. Leaves (5–)13–19-foliolate; rachis<br />
pubescent; leaflet blades opposite, subsessile, broadly ovate,<br />
elliptic, or rarely suborbicular, 8–15 × 4–9 cm, thickly leathery,<br />
abaxially with soft grayish white to grayish yellow woollyvillous<br />
indumentum, oil glands inconspicuous, midvein adaxially<br />
impressed, secondary veins 11–17 on each side of midvein,<br />
base symmetrically or rarely obliquely rounded to subcordate,<br />
margin entire or crenulate, apex acute. Inflorescences terminal,<br />
many flowered. Flowers 5-merous. Pedicel pale purplish red,<br />
pubescent. Perianth in 2 series. Petals white, 2–3 mm. Male<br />
flowers: rudimentary gynoecium 3-lobed. Female flowers:<br />
carpels 3; staminodes small. Fruit follicles pale purplish red but<br />
pale yellow to grayish brown when dry, 4–5 mm in diam., oil<br />
glands numerous and impressed when dry, apex not beaked.<br />
Seeds 3.5–4 mm in diam. Fl. Jun–Aug, fr. Oct–Nov.<br />
● Upland open forests and thickets; 100–900 m. Anhui, Guizhou,<br />
Henan, Hunan, Jiangxi, Yunnan, Zhejiang.<br />
28. Zanthoxylum schinifolium Siebold & Zuccarini, Abh.<br />
Math.-Phys. Cl. Königl. Bayer. Akad. Wiss. 4(2): 137. 1845.<br />
青花椒 qing hua jiao<br />
Fagara pteropoda (Hayata) Y. C. Liu; F. schinifolia<br />
(Siebold & Zuccarini) Engler; Zanthoxylum mantschuricum<br />
Bennett; Z. pteropodum Hayata.<br />
Shrubs 1–2 m tall. Stems and branchlets with prickles.<br />
Young branchlets dark purplish red. Leaves 7–19-foliolate;<br />
petiolules obsolete or to 3 mm; leaflet blades opposite, or<br />
alternate toward base of rachis, broadly ovate, broadly ovaterhombic,<br />
or lanceolate, 5–10(–70) × 4–6(–25) mm, papery, oil<br />
glands numerous or inconspicuous, midvein adaxially impressed,<br />
base symmetrically or sometimes obliquely rounded to<br />
broadly cuneate, margin serrate to subentire, apex mucronate to<br />
acuminate. Inflorescences terminal. Flowers 5-merous. Perianth<br />
in 2 series. Petals pale yellowish white, ca. 2 mm. Male flowers:<br />
rudimentary gynoecium 2- or 3-lobed. Female flowers: carpels<br />
3(–5). Fruit follicles reddish brown but dark green to brownish<br />
black when dry, 4–5 mm in diam., oil glands small, apex not<br />
beaked. Seeds 3–4 mm in diam. Fl. Jul–Sep, fr. Sep–Dec.<br />
Upland open forests and thickets; below 800 m. Anhui, Fujian, N<br />
Guangdong, N Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan,<br />
Jiangsu, Jiangxi, Liaoning, Shandong, Taiwan, Zhejiang [Japan (including<br />
Ryukyu Islands), Korea].<br />
29. Zanthoxylum dimorphophyllum Hemsley, Ann. Bot. (Oxford)<br />
9: 150. 1895.<br />
异叶花椒 yi ye hua jiao<br />
<strong>RUTACEAE</strong><br />
Trees to 10 m tall, deciduous. Branches grayish black, with<br />
few prickles or unarmed; young branchlets and shoots rust-<br />
colored pubescent or glabrous; axillary buds rust-colored<br />
villosulous. Leaves 3–5(–11)-foliolate; leaflet blades ovate,<br />
elliptic, or sometimes obovate, (2–)4–9(–20) × (1–)2–3.5(–7)<br />
cm, oil glands numerous, midvein adaxially plane or impressed<br />
and puberulent, reticulate veinlets slightly ridged when dry, base<br />
symmetric, margin crenate and with or without spines, apex<br />
blunt, rounded, mucronate, or acuminate, usually with a retuse<br />
tip. Inflorescences terminal; bracts rust-colored villosulous.<br />
Perianth in 2 series with 4 sepals and 4 petals or grading to 2<br />
irregular series or 1 series with 7 or 8 ± undifferentiated 2–3 mm<br />
tepals; when differentiated, sepals 0.2–0.5 mm and petals ca. 1.5<br />
mm. Male flowers: stamens 4–6; disk pulvinate; rudimentary<br />
gynoecium obsolete or 2- or 3-carpelled. Female flowers:<br />
staminodes 4 or 5; rudimentary anthers without pollen; gynoecium<br />
2- or 3-carpelled; styles recurved. Fruit follicles purplish<br />
red, 6–8 mm in diam., sparsely pubescent when young, with<br />
sparse oil glands, stipitate, apex shortly beaked. Seeds 5–7 mm<br />
in diam. Fl. Apr–Jun, fr. Sep–Nov. 2n = 36, 68.<br />
Moist areas in upland forests, hillside open forests and thickets;<br />
300–2400 m. S Gansu, N Guangdong, Guangxi, Guizhou, Hainan, SW<br />
Henan, W Hubei, Hunan, S Shaanxi, Sichuan, Taiwan, Yunnan [Thailand,<br />
Vietnam].<br />
C. C. Huang (Fl. Reipubl. Popularis Sin. 43(2): 40. 1997)<br />
mistakenly placed Zanthoxylum dimorphophyllum in synonymy of Z.<br />
ovalifolium Wight, which ranges from India to NE Australia and is not<br />
known to occur in China.<br />
1a. Margin of leaflet blades with spines<br />
............................................................ 29c. var. spinifolium<br />
1b. Margin of leaflet blades without spines.<br />
2a. Leaves 3- or 5-foliolate<br />
.......................................... 29a. var. dimorphophyllum<br />
2b. Leaves (5 or)7–11-foliolate<br />
............................................. 29b. var. multifoliolatum<br />
29a. Zanthoxylum dimorphophyllum var. dimorphophyllum<br />
异叶花椒(原变种) yi ye hua jiao (yuan bian zhong)<br />
Fagara dimorphophylla (Hemsley) Engler; F. robiginosa<br />
Reeder & S. Y. Cheo; Zanthoxylum acanthopodium Candolle<br />
var. deminutum (Rehder) Reeder & S. Y. Cheo; Z. dimorphophyllum<br />
var. deminutum Rehder; Z. evoidiifolium Guillaumin; Z.<br />
pistaciiflorum Hayata; Z. robiginosum (Reeder & S. Y. Cheo) C.<br />
C. Huang.<br />
Leaves 3- or 5-foliolate; margin of leaflet blades without<br />
spines.<br />
Moist areas in upland forests; 300–2400 m. S Gansu, N Guangdong,<br />
Guangxi, Guizhou, Hainan, W Hubei, Hunan, S Shaanxi, Sichuan,<br />
Taiwan, Yunnan [Thailand, Vietnam].<br />
29b. Zanthoxylum dimorphophyllum var. multifoliolatum C.<br />
C. Huang, Acta Phytotax. Sin. 16(2): 81. 1978.<br />
多异叶花椒 duo yi ye hua jiao<br />
Zanthoxylum ovalifolium Wight var. multifoliolatum (C. C.<br />
Huang) C. C. Huang.
Leaves (5 or)7–11-foliolate; margin of leaflet blades<br />
without spines.<br />
● Hillside thickets. Yunnan (Kunming).<br />
29c. Zanthoxylum dimorphophyllum var. spinifolium Rehder<br />
& E. H. Wilson in Sargent, Pl. Wilson. 2: 126. 1914.<br />
刺异叶花椒 ci yi ye hua jiao<br />
Zanthoxylum dissitum Hemsley var. spinulosum Z. M. Tan;<br />
Z. ovalifolium Wight var. spinifolium (Rehder & E. H. Wilson)<br />
C. C. Huang.<br />
Leaves 3- or 5-foliolate; margin of leaflet blades with<br />
spines.<br />
● Hillside open forests and thickets; 400–2100 m. Guizhou, SW<br />
Henan (Funiu Shan), W Hubei, Hunan, S Shaanxi (Qin Ling), Sichuan.<br />
30. Zanthoxylum acanthopodium Candolle, Prodr. 1: 727.<br />
1824.<br />
刺花椒 ci hua jiao<br />
Zanthoxylum acanthopodium var. oligotrichum Z. M. Tan;<br />
Z. acanthopodium var. timbor J. D. Hooker; Z. acanthopodium<br />
var. villosum C. C. Huang.<br />
Shrubs, woody climbers, or trees to 6 m tall. Bark grayish<br />
black. Branchlets rust-colored pubescent to nearly glabrous,<br />
usually with prickles. Leaves 3–9-foliolate; rachis wings to 3<br />
mm on each side; leaflet blades sessile, opposite, ovate-elliptic<br />
to lanceolate, 6–10 × 2–4 cm, papery, both surfaces glabrous to<br />
rust-colored pubescent, oil glands inconspicuous, secondary<br />
veins 10–28 on each side of midvein and evident, margin entire<br />
or crenate. Inflorescences axillary. Perianth in 2 irregular series<br />
or 1 series, with 6–8 ± undifferentiated tepals. Tepals pale<br />
yellowish green, narrowly lanceolate, ca. 1.5 mm. Male flowers:<br />
stamens 5 or 6; anthers reddish purple before anthesis; disk<br />
pulvinate; rudimentary carpels 2–5. Female flowers: rudimentary<br />
stamens lacking; carpels 2–5, sparsely hirsute to glabrous,<br />
abaxially often with a conspicuous oil gland; styles recurved.<br />
Fruit follicles usually purplish red, ca. 4 mm in diam., glabrous<br />
or sometimes with sparse trichomes, oil glands large and<br />
protruding. Seeds ca. 3 mm in diam. Fl. Apr–May, fr. Sep–Oct.<br />
2n = 64.<br />
Upland open forests and thickets; 1400–3200 m. W Guangxi,<br />
Guizhou, Sichuan, Xizang, Yunnan [Bangladesh, Bhutan, India, Indonesia,<br />
Laos, Malaysia, Myanmar, Nepal, Thailand, Vietnam].<br />
31. Zanthoxylum armatum Candolle, Prodr. 1: 727. 1824.<br />
竹叶花椒 zhu ye hua jiao<br />
Shrubs, woody climbers, or trees to 5 m tall, deciduous.<br />
Branchlets and leaflet blades abaxially on midvein usually with<br />
prickles. Young branchlets and inflorescence rachises glabrous<br />
or rust-colored pubescent. Leaves 3–9(or 11)-foliolate; rachis<br />
glabrous or rust-colored pubescent, wings to 6 mm on each side;<br />
leaflet blades subsessile, opposite, lanceolate, ovate, or elliptic,<br />
3–12 × 1–3 cm, base attenuate to broadly cuneate, secondary<br />
veins 7–15 on each side of midvein and generally faint, margin<br />
crenate or entire and often revolute when dry, apex acute to<br />
acuminate. Inflorescences terminal on short lateral branchlets<br />
<strong>RUTACEAE</strong><br />
and sometimes axillary, 1–7 cm, with less than 30 flowers.<br />
Perianth in 2 irregular series or 1 series, with 6–8 ± undifferentiated<br />
0.3–1.5 mm tepals. Male flowers: stamens 4–6;<br />
anthers yellow prior to anthesis; connective apex with oil gland;<br />
disk pulvinate; rudimentary carpels lacking. Female flowers:<br />
carpels 2 or 3, abaxially often with a conspicuous oil gland;<br />
styles recurved; staminodes ligulate or lacking. Fruit follicles<br />
usually purplish red, 4–5 mm in diam., with a few protruding oil<br />
glands. Seeds blackish brown, 3–4 mm in diam. Fl. Apr–May, fr.<br />
Aug–Oct. 2n = 66.<br />
Found in many habitats; below 3100 m. Anhui, Fujian, S Gansu,<br />
Guangdong, Guangxi, Guizhou, S Henan, Hubei, Hunan, Jiangsu,<br />
Jiangxi, Shaanxi, Shandong, S Shanxi, Sichuan, N Taiwan, Xizang, Yunnan,<br />
Zhejiang [Bangladesh, Bhutan, India, Indonesia, Japan (including<br />
Ryukyu Islands), Kashmir, Korea, Laos, Myanmar, Nepal, Pakistan,<br />
Philippines, Thailand, Vietnam].<br />
Ohba (Fl. Jap. 22c: 37. 2001) treats the plants from Japan and most<br />
of China as Zanthoxylum armatum var. subtrifoliolatum (Franchet)<br />
Kitamura.<br />
1a. Young branchlets and inflorescence rachises<br />
glabrous or young branches sparsely<br />
pubescent ............................................... 31a. var. armatum<br />
1b. Young branchlets and inflorescence<br />
rachises rust-colored pubescent ...... 31b. var. ferrugineum<br />
31a. Zanthoxylum armatum var. armatum<br />
竹叶花椒(原变种) zhu ye hua jiao (yuan bian zhong)<br />
Zanthoxylum alatum Roxburgh; Z. alatum var. planispinum<br />
(Siebold & Zuccarini) Rehder & E. H. Wilson; Z. alatum var.<br />
subtrifoliolatum Franchet; Z. arenosum Reeder & S. Y. Cheo; Z.<br />
armatum var. subtrifoliolatum (Franchet) Kitamura; Z. planispinum<br />
Siebold & Zuccarini.<br />
Young branchlet apices and inflorescence rachises glabrous,<br />
or young branches sparsely pubescent. Leaflet blades<br />
abaxially flocculent on midvein.<br />
Found in many habitats; below 3100 m. Anhui, Fujian, S Gansu,<br />
N Guangdong, Guangxi, Guizhou, S Henan, Hubei, Hunan, Jiangsu,<br />
Jiangxi, S Shaanxi, Shandong, S Shanxi, Sichuan, N Taiwan, Xizang,<br />
Yunnan, Zhejiang [Bangladesh, Bhutan, India, Indonesia, Japan (including<br />
Ryukyu Islands), Kashmir, Korea, Laos, Myanmar, Nepal, Pakistan,<br />
Philippines, Thailand, Vietnam].<br />
31b. Zanthoxylum armatum var. ferrugineum (Rehder & E.<br />
H. Wilson) C. C. Huang, Guihaia 7: 1. 1987.<br />
毛竹叶花椒 mao zhu ye hua jiao<br />
Zanthoxylum alatum f. ferrugineum Rehder & E. H. Wilson<br />
in Sargent, Pl. Wilson. 2: 215. 1914.<br />
Young branchlet apices, inflorescence rachises, and sometimes<br />
leaf rachises rust-colored pubescent.<br />
nan.<br />
● Guangdong, Guangxi, Guizhou, Hunan, Shaanxi, Sichuan, Yun-<br />
32. Zanthoxylum wutaiense I. S. Chen, Taiwan Sci. 26: 56.<br />
1972.<br />
屏东花椒 ping dong hua jiao<br />
63
64<br />
Shrubs. Branchlets with prickles or unarmed, glabrous.<br />
Leaves 5–13-foliolate; rachis canaliculate, sides of channel<br />
rarely slightly spreading apically; leaflet blades sessile, opposite,<br />
oblong to oblong-lanceolate, 2.5–10 × 0.6–2 cm, leathery, midvein<br />
narrowly ridged adaxially, secondary veins 7–16 on each<br />
side of midvein, base attenuate to cuneate, margin crenulate,<br />
apex acuminate at least in terminal blade. Inflorescences axillary,<br />
paniculate. Flowers yellow. Pedicel ca. 3 mm. Perianth in 2<br />
irregular series or 1 series, with 5–8 ± undifferentiated tepals.<br />
Male flowers: stamens 5–8. Female flowers: pistil subtended by<br />
columnar disk, 1(or 2)-carpelled; carpel ovoid to ellipsoid, with<br />
a conspicuous lateral oil gland; style short; stigma capitate. Fruit<br />
follicle ovoid, ca. 5 mm in diam. Fl. Apr.<br />
● Exposed slopes in secondary broad-leaved forests; 1300–1400<br />
m. Taiwan (Pingdong).<br />
33. Zanthoxylum bungeanum Maximowicz, Bull. Acad. Imp.<br />
Sci. Saint-Pétersbourg 16: 212. 1871.<br />
花椒 hua jiao<br />
Trees 3–7 m tall, deciduous. Stems and branchlets with<br />
prickles; stem prickles with a flat base. Young branchlets<br />
pubescent. Leaves 5–13-foliolate; rachis marginate; leaflet<br />
blades sessile, opposite, ovate, elliptic, or rarely lanceolate,<br />
sometimes suborbicular near leaf rachis base, 2–7 × 1–4.5 cm,<br />
both surfaces pubescent or abaxial surface flocculent along<br />
midvein, midvein adaxially impressed, margin crenate. Inflorescences<br />
axillary but terminal on lateral branchlets; rachis and<br />
pedicel pubescent or glabrous. Perianth in 2 irregular series or 1<br />
series, with 6–8 yellowish green ± undifferentiated tepals. Male<br />
flowers: stamens 5–8; rudimentary gynoecium 2-lobed. Female<br />
flowers 2–5-carpelled. Fruit follicles purplish red, 4–5 mm in<br />
diam., pustulose glandular, apex shortly beaked or beak lacking.<br />
Seeds 3.5–4.5 mm. Fl. Apr–May, fr. Aug–Oct.<br />
Found in many habitats; below 3200 m. Anhui, Fujian, Gansu,<br />
Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi,<br />
Liaoning, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, SE<br />
Xinjiang, S and SE Xizang, Yunnan, Zhejiang [Bhutan].<br />
The dried fruit follicles of Zanthoxylum bungeanum are used as a<br />
culinary spice and are particularly popular in Sichuan cuisine (Sichuan<br />
pepper). In Japan, Z. piperitum (Linnaeus) Candolle is sometimes similarly<br />
used.<br />
1a. Leaflet blades pubescent on both<br />
surfaces or sometimes adaxial surface<br />
glabrous ............................................... 33c. var. pubescens<br />
1b. Leaflet blades flocculent along midvein<br />
abaxially, otherwise glabrous.<br />
2a. Leaflet blades with oil glands only<br />
at margin ................................... 33a. var. bungeanum<br />
2b. Leaflet blades with scattered oil<br />
glands .......................................... 33b. var. punctatum<br />
33a. Zanthoxylum bungeanum var. bungeanum<br />
花椒(原变种) hua jiao (yuan bian zhong)<br />
Zanthoxylum bungei Hance; Z. bungei var. imperforatum<br />
Franchet; Z. fraxinoides Hemsley; Z. simulans Hance var.<br />
imperforatum (Franchet) Reeder & S. Y. Cheo.<br />
<strong>RUTACEAE</strong><br />
Leaflet blades flocculent along midvein abaxially, otherwise<br />
glabrous, oil glands only at margin.<br />
Found in many habitats; below 3200 m. Anhui, Fujian, Gansu,<br />
Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi,<br />
Liaoning, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, SE<br />
Xinjiang, S and SE Xizang, Yunnan, Zhejiang [Bhutan].<br />
33b. Zanthoxylum bungeanum var. punctatum C. C. Huang,<br />
Acta Phytotax. Sin. 16(2): 81. 1978.<br />
油叶花椒 you ye hua jiao<br />
Leaf rachises, infructescences, and follicles reddish brown<br />
when dry. Leaflet blades with oil glands conspicuous, scattered.<br />
Fr. Jul–Aug.<br />
● Open forests; 2000–2500 m. W Sichuan.<br />
33c. Zanthoxylum bungeanum var. pubescens C. C. Huang,<br />
Acta Phytotax. Sin. 6: 24. 1957.<br />
毛叶花椒 mao ye hua jiao<br />
Young branchlets, rachis of leaves and inflorescences, and<br />
both surfaces of leaflet blades pubescent, or sometimes leaflet<br />
blades adaxially glabrous. Fl. May–Jun, fr. Oct–Nov.<br />
● 1700–3200 m. Gansu, Qinghai (Xunhua), S Shaanxi, NW and W<br />
Sichuan, Yunnan.<br />
34. Zanthoxylum undulatifolium Hemsley, Ann. Bot. (Oxford)<br />
9: 148. 1895.<br />
浪叶花椒 lang ye hua jiao<br />
Trees to 3 m tall. Young branchlets and leaf rachises<br />
rust-colored pubescent, with few prickles or unarmed. Leaves<br />
3–5(–7)-foliolate; terminal leaflet with petiolule 6–10 mm,<br />
lateral leaflets subsessile; leaflet blades opposite, ovate to<br />
ovate-lanceolate, 3–8 × 1.5–3.5 cm, abaxially glabrous, adaxially<br />
sparsely puberulent, midvein adaxially plane, secondary<br />
veins 6–10 on each side of midvein, base broadly cuneate to<br />
rounded, margin undulate and crenulate, apex mucronate to<br />
acuminate. Inflorescences terminal, corymbose. Perianth in 2<br />
irregular series or 1 series, with 5–8 ± undifferentiated tepals.<br />
Fruit pedicel reddish brown, 0.7–1.4 cm; follicles reddish brown,<br />
ca. 5 mm in diam., oil glands large and impressed, apex not<br />
beaked. Seeds ca. 4 mm in diam. Fl. Apr–May, fr. Aug–Oct.<br />
● Forests, thickets; 1600–3200 m. W Hubei, S Shaanxi, E Sichuan,<br />
NE Yunnan.<br />
35. Zanthoxylum austrosinense C. C. Huang, Acta Phytotax.<br />
Sin. 6: 53. 1957.<br />
岭南花椒 ling nan hua jiao<br />
Shrubs or trees, rarely to 3 m tall, dioecious or rarely<br />
polygamo-monoecious, all parts glabrous. Branchlets blackish<br />
brown, unarmed. Leaves 5–11-foliolate; rachis terete; lateral<br />
leaflets opposite, sessile or subsessile; terminal leaflet with<br />
petiolule 1–3 mm; leaflet blades ovate to lanceolate, 6–11 × 3–5<br />
cm, oil glands clear but dark reddish brown to blackish brown<br />
when dry, midvein adaxially impressed or plane, secondary<br />
veins 11–15 on each side of midvein, base rounded to subcordate<br />
or oblique, margin serrulate, apex acuminate. Inflorescences<br />
terminal, usually on lateral branchlets, to 30-flowered. Pedicel<br />
5–8 mm. Perianth in 2 irregular series or 1 series, with 7–9 ±
undifferentiated tepals. Tepals basally pale yellowish green and<br />
apically dark purplish red, lanceolate to oblanceolate, ca. 1.5<br />
mm. Bisexual flowers: stamens 3 or 4; carpels 4. Male flowers:<br />
stamens 6–8. Female flowers: carpels 3 or 4; styles recurved;<br />
stigmas capitate. Fruit pedicel dark purplish red, 1–2 cm;<br />
follicles dark purplish red, ca. 5 mm in diam., with sparse<br />
protruding oil glands, apex subrounded or shortly beaked. Seeds<br />
ca. 4 × 3–4 mm. Fl. Mar–Apr, fr. Aug–Sep.<br />
● Hillside open forests and thickets, upland thickets; 300–1700 m.<br />
S Anhui, Fujian, N Guangdong, NE Guangxi, SW Hubei, Hunan,<br />
Jiangxi, Zhejiang.<br />
1a. Leaflet blades dark reddish brown to<br />
blackish brown when dry, glabrous<br />
......................................................... 35a. var. austrosinense<br />
1b. Leaflet blades dark grayish green<br />
when dry, adaxially hirsutulous .......... 35b. var. pubescens<br />
35a. Zanthoxylum austrosinense var. austrosinense<br />
岭南花椒(原变种) ling nan hua jiao (yuan bian zhong)<br />
Zanthoxylum austrosinense var. stenophyllum C. C. Huang.<br />
Leaflet blades dark reddish brown to blackish brown when<br />
dry, glabrous.<br />
● Hillside open forests and thickets; 300–900 m. S Anhui, Fujian,<br />
N Guangdong, NE Guangxi, SW Hubei, Hunan, Jiangxi, Zhejiang.<br />
35b. Zanthoxylum austrosinense var. pubescens C. C. Huang,<br />
Acta Phytotax. Sin. 16(2): 82. 1978.<br />
毛叶岭南花椒 mao ye ling nan hua jiao<br />
Leaflet blades dark grayish green when dry, adaxially hirsutulous.<br />
● Upland thickets; ca. 1700 m. Hunan (Sangzhi).<br />
36. Zanthoxylum motuoense C. C. Huang, Acta Phytotax. Sin.<br />
16(2): 83. 1978.<br />
墨脱花椒 mo tuo hua jiao<br />
Trees to 15 m tall, deciduous. Branchlets with prickles near<br />
leaf scars. Leaves 3- or 5-foliolate; rachis not winged, unarmed,<br />
with trichomes; leaflet blades broadly obovate to broadly<br />
elliptic, 3–6 × 2–4 cm but terminal one to 9 × 6 cm, both<br />
surfaces pubescent, oil glands inconspicuous, base subrounded<br />
to cuneate, margin crenulate, apex subrounded or rarely acuminate.<br />
Infructescences paniculate, 4–8 cm. Fruit pedicel with<br />
short trichomes; follicles elliptic, ca. 4.5 mm in diam., with<br />
large protruding oil glands. Seeds ca. 4 mm in diam. Fr. Sep–<br />
Oct.<br />
● Upland thickets; ca. 1100 m. SE Xizang (Mêdog).<br />
37. Zanthoxylum piasezkii Maximowicz, Trudy Imp. S.-Peterburgsk.<br />
Bot. Sada 11: 93. 1889.<br />
川陕花椒 chuan shan hua jiao<br />
Shrubs or trees, 1–3 m tall, all parts glabrous. Stems and<br />
branches with brownish red prickles. Leaves 7–17-foliolate;<br />
rachis marginate; leaflet blades sessile, orbicular, broadly elliptic,<br />
or obovate-rhombic, 3–25 × 3–8 mm, thickly leathery, pale<br />
brown to blackish brown when dry, midvein impressed, secondary<br />
veins inconspicuous, base symmetric or slightly oblique,<br />
<strong>RUTACEAE</strong><br />
margin apically crenate. Inflorescences terminal. Perianth in 2<br />
irregular series or 1 series, with 6–8 ± undifferentiated tepals.<br />
Tepals broadly deltoid, ca. 1.5 mm or longer. Male flowers:<br />
pedicel 5–8 mm; stamens 5 or 6; connective blackish brown<br />
when dry, with oil gland on tip; rudimentary gynoecium projecting<br />
outward and cushion-shaped. Female flowers: carpels 2<br />
or 3(or 4); styles recurved. Fruit follicles purplish red, 4–5 mm in<br />
diam., with a few protruding oil glands. Seeds 3–4 mm in diam.<br />
Fl. May, fr. Jun–Jul.<br />
● 1700–2500 m. S Gansu, W Henan, S Shaanxi, Sichuan.<br />
38. Zanthoxylum pilosulum Rehder & E. H. Wilson in Sargent,<br />
Pl. Wilson. 2: 123. 1914.<br />
微柔毛花椒 wei rou mao hua jiao<br />
Shrubs 1–2 m tall. Branchlets with prickles, puberulent<br />
when young. Leaves (5 or)7–11-foliolate; leaflet blades sessile,<br />
ovate to ovate-elliptic, 0.5–3 × 0.4–1.5 cm but terminal one to 5<br />
× 2.5 cm, thinly papery, grayish green when dry, oil glands<br />
inconspicuous, base symmetric, margin irregularly and remotely<br />
crenulate, apex mucronate to acuminate. Inflorescences terminal;<br />
rachis with short trichomes. Perianth in 2 irregular series or<br />
1 series, with 5–8 ± undifferentiated tepals. Male flowers: tepals<br />
lanceolate, 1.2–1.5 mm; stamens 5 or 6. Female flowers: carpels<br />
(2–)4. Fruit follicles purplish red, 4–5 mm in diam., with sparse<br />
protruding small oil glands. Fl. Apr–May, fr. Jul–Aug.<br />
● 2500–3100 m. S Gansu, S Shaanxi, NE and W Sichuan, Yunnan.<br />
39. Zanthoxylum pteracanthum Rehder & E. H. Wilson in<br />
Sargent, Pl. Wilson. 2: 123. 1914.<br />
翼刺花椒 yi ci hua jiao<br />
Shrubs or trees, 2–3 m tall. Branchlets grayish green,<br />
glabrous, densely covered with setiform prickles and strongly<br />
compressed pseudostipular decurrent prickles forming a wing<br />
which joins them between nodes. Leaves 7–13-foliolate; rachis<br />
marginate, glabrous; leaflet blades subsessile, opposite or subopposite,<br />
lanceolate to ovate-oblong, 2–4 × 0.8–1.5 cm, oil<br />
glands inconspicuous, base slightly oblique and subrounded to<br />
broadly cuneate, margin apically crenulate, apex acuminate with<br />
a mucronate, obtuse, or emarginate tip. Inflorescences terminal;<br />
rachis base with prickles. Fruit pedicel 5–8 mm; developed<br />
follicles 1–3 with carpels in female flowers at least 3, ca. 5 mm,<br />
pubescent. Seeds 3–4 mm.<br />
● Upland thickets; ca. 1000 m. W Hubei (Xingshan).<br />
40. Zanthoxylum simulans Hance, Ann. Sci. Nat., Bot., sér. 5,<br />
5: 208. 1866.<br />
野花椒 ye hua jiao<br />
Fagara podocarpa (Hemsley) Engler; F. setosa (Hemsley)<br />
Engler; Zanthoxylum acanthophyllum Hayata; Z. argyi H.<br />
Léveillé; Z. bungei Hance var. inermis Franchet; Z. podocarpum<br />
Hemsley; Z. setosum Hemsley; Z. simulans var. podocarpum<br />
(Hemsley) C. C. Huang.<br />
Shrubs or small trees. Stems and branchlets with prickles.<br />
Young branchlets and leaflet blades abaxially on midvein pubescent,<br />
sometimes also secondary veins pubescent, sometimes<br />
65
66<br />
all parts glabrous. Leaves 5–15-foliolate; rachis winged; leaflet<br />
blades sessile or at base of leaf rachis with a short petiolule,<br />
opposite, ovate, ovate-elliptic, or lanceolate, 2.5–7 × 1.5–4 cm,<br />
adaxially with spines, oil glands numerous, translucent, and<br />
slightly protruding when dry, midvein impressed, base slightly<br />
oblique, margin crenate, apex acute to mucronate or with a retuse<br />
tip. Inflorescences terminal, 1–5 cm. Perianth in 2 irregular<br />
series or 1 series, with 5–8 ± undifferentiated tepals. Tepals pale<br />
yellowish green, narrowly lanceolate, broadly ovate, or subdeltoid,<br />
ca. 2 mm. Male flowers: stamens 5–8(–10); filaments pale<br />
green; connective with an oil gland at apex; rudimentary gynoecium<br />
pale green. Female flowers: carpels 2 or 3; styles recurved.<br />
Fruit follicles reddish brown, ca. 5 mm in diam., base attenuate<br />
into a 1–2 mm stipe, oil glands numerous and slightly protruding.<br />
Seeds 4–4.5 mm. Fl. Mar–May, fr. Jul–Sep. 2n = ca. 132*.<br />
● Plains or upland forests. Anhui, Fujian, Gansu, N Guangdong,<br />
NE Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Qinghai,<br />
Shaanxi, Shandong, Taiwan, Zhejiang.<br />
41. Zanthoxylum stipitatum C. C. Huang, Guihaia 7: 2. 1987.<br />
<strong>RUTACEAE</strong><br />
2. ORIXA Thunberg, Nov. Gen. Pl. 3: 56. 1783.<br />
臭常山属 chou chang shan shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
梗花椒 geng hua jiao<br />
Shrubs or trees, 1–3 m tall, glabrous except for leaflet<br />
blades. Prickles to 1.5 cm. Branchlets blackish brown when dry.<br />
Leaves 7–17-foliolate; leaflet blades subsessile or with petiolule<br />
to 2 mm, opposite, lanceolate to ovate but suborbicular at base of<br />
leaf rachis, 1–5 × 0.7–1.3 cm, papery, abaxially purplish red<br />
when young, turning grayish green when mature, and reddish<br />
brown to dark blackish red when dry, oil glands sparse and<br />
protruding on both surfaces when dry, midvein abaxially rustcolored<br />
flocculent and adaxially impressed, margin serrulate.<br />
Inflorescences terminal. Perianth in 2 irregular series or 1 series,<br />
with 6–8 ± undifferentiated tepals. Tepals usually lanceolate,<br />
2–3 mm. Male flowers: stamens 5–8; connective with oil gland<br />
at tip. Female flowers: carpels 3 or 4; styles recurved. Rachis of<br />
infructescences purplish red. Fruit pedicel purplish red, 5–8(–10)<br />
mm; follicles purplish red, ca. 5 × 4 mm, base attenuate into a<br />
1–3 mm stipe, oil glands slightly protruding when dry. Seeds ca.<br />
4 × 3.5 mm. Fl. Apr–May, fr. Jul–Aug.<br />
● Forests; 100–800 m. NW Fujian, N Guangdong, NE Guangxi, S<br />
Hunan.<br />
Shrubs or small trees, deciduous, dioecious, unarmed. Buds with imbricate scales. Leaves alternate, simple. Inflorescences<br />
axillary, between leaves or basal to leaves, racemose or in female plants often reduced to solitary flowers. Sepals 4, basally connate.<br />
Petals 4, imbricate in bud. Stamens 4 but rudimentary in female flowers, distinct. Disk 4-lobed, broadly flattened in male flowers.<br />
Gynoecium 4-carpelled but rudimentary or lacking in male flowers; ovaries basally connate, otherwise coherent, each with 1 ovule;<br />
style terminal, of 4 coherent stylar elements; stigma capitate, 4-lobed. Fruit of 1–4 basally connate follicles each with a stylar beak;<br />
endocarp cartilaginous, discharged elastically with seed at dehiscence. Seeds black, subglobose to broadly ellipsoid, glossy; seed coat<br />
sclerenchymatous, thin and brittle; endosperm ± scant; embryo straight; cotyledons suborbicular, flattened; hypocotyl partly included<br />
between cotyledons.<br />
One species: E Asia.<br />
1. Orixa japonica Thunberg, Nov. Gen. Pl. 3: 57. 1783.<br />
臭常山 chou chang shan<br />
Celastrus orixa (Lamarck) Siebold & Zuccarini, nom. superfl.;<br />
Euodia ramiflora A. Gray; Ilex orixa (Lamarck) Sprengel;<br />
Orixa racemosa Z. M. Tan; O. subcoriacea Z. M. Tan;<br />
Othera orixa Lamarck; Sabia cavaleriei H. Léveillé; S. feddei H.<br />
Léveillé.<br />
Shrubs or trees, to 3 m tall. Petiole 3–8 mm; leaf blade<br />
obovate to elliptic, 4–15 × 2–6 cm, papery, base obtuse, cuneate,<br />
or attenuate, apex obtuse, acute, or acuminate. Sepals 1–1.5 mm.<br />
Petals greenish, 3–4 mm. Fruit follicles 8–10 mm, ribbed, apex<br />
usually with a stylar beak. Seeds 4–4.5 mm in diam. Fl. Apr–<br />
May, fr. Sep–Nov.<br />
Open or dense forests on sunny slopes; 500–1300 m. Anhui, Fujian,<br />
Guizhou, S Henan, Hubei, NW Hunan, Jiangsu, N Jiangxi, SE Shaanxi,<br />
Sichuan, NW Yunnan, Zhejiang [Japan, S Korea].<br />
3. TETRADIUM Loureiro, Fl. Cochinch. 1: 91. 1790.<br />
四数花属 si shu hua shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Boymia A. Jussieu; Megabotrya Hance ex Walpers; Philagonia Blume.<br />
Shrubs or trees, evergreen or deciduous, dioecious or rarely polygamo-dioecious. Axillary buds exposed. Leaves opposite, odd-<br />
pinnate (occasional leaves even-pinnate); lateral leaflet blades often ± inequilateral, especially at base. Inflorescences terminal or<br />
terminal and axillary, thyrsiform. Sepals 4 or 5, basally connate. Petals 4 or 5, narrowly imbricate in bud. Stamens 4 or 5, distinct. Male<br />
flowers: stamens to 1.5 × as long as petals; disk conic to cylindric or occasionally barrel-shaped; gynoecium rudimentary, of 4 or 5<br />
basally connate, divergent, and fingerlike carpels. Female flowers: stamens rudimentary, ligulate, much shorter than petals or some-
<strong>RUTACEAE</strong><br />
times lacking; disk pulvinate to barrel-shaped; gynoecium 4- or 5-carpelled; ovaries basally connate, otherwise contiguous, each with 1<br />
or 2 ovules; style apical, of 4 or 5 ± contiguous stylar elements; stigma peltate. Fruit of 1–5 basally connate follicles with abortive<br />
carpels, if any, persistent; outer part of pericarp (exocarp and mesocarp) dry or ± fleshy; endocarp cartilaginous. Seeds remaining<br />
attached in dehisced fruit; seed coat (except in Tetradium daniellii and T. calcicola) with thick inner layer of dense black sclerenchyma<br />
and spongy outer layer bounded externally by a shiny black or reddish pellicle; endosperm copious; embryo straight; cotyledons<br />
broadly elliptic, ± flattened; hypocotyl superior.<br />
Nine species: E, S, and SE Asia; seven species (one endemic) in China.<br />
Euodia lyi H. Léveillé (Bull. Géogr. Bot. 24: 142. 1914) is a synonym of Miliusa sinensis Finett & Gagnepain in the Annonaceae (see Fl. China 7).<br />
Euodia chaffanjonii H. Léveillé (Repert. Spec. Nov. Regni Veg. 13: 265. 1914) is a synonym of Euscaphis japonica (Thunberg) Dippel in the<br />
Staphyleaceae (see p. 498).<br />
Euodia was long confused with Tetradium and Melicope. Euodia comprises seven species native to NE Australia, New Guinea, and SW Pacific<br />
islands.<br />
1a. Plants flowering.<br />
2a. Flowers 4(or 5)-merous.<br />
3a. Leaflet blade secondary veins 13–22 on each side of midvein, margin crenulate or rarely entire;<br />
ovules 2 per carpel, subcollateral ............................................................................................................... 1. T. fraxinifolium<br />
3b. Leaflet blade secondary veins 11–14 on each side of midvein, margin entire; ovules 2 per carpel,<br />
collateral ..................................................................................................................................................... 5. T. trichotomum<br />
2b. Flowers (4 or)5-merous.<br />
4a. Ovules 1 per carpel; leaflet blades abaxially finely papillate ................................................................... 7. T. austrosinense<br />
4b. Ovules 2 per carpel; leaflet blades not abaxially papillate.<br />
5a. Ovules superposed.<br />
6a. Petals white or whitish, drying whitish or pale brown, outside glabrous; leaflet blade margins<br />
subentire to crenulate ............................................................................................................................ 2. T. daniellii<br />
6b. Petals purple, drying dull purplish red, outside sparsely to ± densely appressed pubescent; leaflet<br />
blade margins entire ............................................................................................................................ 3. T. calcicola<br />
5b. Ovules collateral or subcollateral.<br />
7a. Sepals ca. 0.5 mm; leaflet blades abaxially usually glaucous, reticulate veinlets dense and<br />
clearly defined ................................................................................................................................ 4. T. glabrifolium<br />
7b. Sepals 0.5–1.2 mm; leaflet blades abaxially rarely slightly glaucous, reticulate veinlets ±<br />
loose and ± inconspicuous ............................................................................................................... 6. T. ruticarpum<br />
1b. Plants fruiting.<br />
8a. Fruit (including abortive carpels, if any) 4(or 5)-carpelled.<br />
9a. Seeds 2 per follicle, subtrigonous, attached in dehisced follicle to a fleshy funiculate aril ..................... 1. T. fraxinifolium<br />
9b. Seeds 1 per follicle, paired with an abortive seed, subglobose to broadly ovoid, attached in dehisced<br />
follicle to an axile strip of pergamentaceous pericarp tissue ..................................................................... 5. T. trichotomum<br />
8b. Fruit (including abortive carpels, if any) (4 or)5-carpelled.<br />
10a. Fruit follicles 2-seeded.<br />
11a. Fruit follicles 5–11 mm, sparsely to densely spreading pubescent, apex beaked ................................. 2. T. daniellii<br />
11b. Fruit follicles ca. 5 mm, sparsely to densely appressed pubescent laterally, otherwise glabrate,<br />
apex not beaked .................................................................................................................................... 3. T. calcicola<br />
10b. Fruit follicles 1-seeded.<br />
12a. Seed not paired with an abortive seed; follicles ca. 3.5 mm ........................................................ 7. T. austrosinense<br />
12b. Seed paired with an abortive seed; follicles 3.5–6 mm.<br />
13a. Fruit follicles trigonous, sparsely to densely appressed pubescent laterally, glabrous<br />
abaxially, endocarp sparsely to ± densely pubescent ............................................................ 4. T. glabrifolium<br />
13b. Fruit follicles subglobose, glabrous or sometimes with sparse trichomes laterally and/or<br />
abaxially, endocarp glabrous ................................................................................................... 6. T. ruticarpum<br />
1. Tetradium fraxinifolium (Hooker) T. G. Hartley, Gard.<br />
Bull. Singapore 34: 102. 1981.<br />
无腺吴萸 wu xian wu yu<br />
Philagonia fraxinifolia Hooker, Icon. Pl. t. 710. 1845;<br />
Euodia fraxinifolia (Hooker) Bentham; E. impellucida Handel-<br />
Mazzetti; E. impellucida var. macrococca C. C. Huang; E.<br />
poilanei Guillaumin; E. subtrigonosperma C. C. Huang.<br />
Trees to 12 m tall. Leaves 23–67 cm, 5–15-foliolate; leaflet<br />
blades lanceolate or occasionally ovate, elliptic-oblong, or elliptic,<br />
9–25 × 3.5–8.5 cm, abaxially often glaucous and sometimes<br />
67
68<br />
subpapillate, secondary veins 13–22 on each side of midvein,<br />
reticulate veinlets abaxially usually inconspicuous, base in<br />
lateral leaflets rounded to narrowly cuneate and in terminal<br />
leaflet cuneate, margin crenulate or rarely entire, apex acuminate.<br />
Inflorescences 7–24 cm. Flowers 4(or 5)-merous. Sepals<br />
0.5–1.5 mm. Petals green to pale yellow but drying brown,<br />
3.5–6.5 mm, outside glabrous, inside glabrous to villous. Ovary<br />
glabrous or appressed pubescent; ovules 2 per carpel, subcollateral.<br />
Fruit (including abortive carpels, if any) usually<br />
4-carpelled; follicles compressed subglobose, 5.5–10 mm, glabrous<br />
to sparsely pubescent, apex not beaked; endocarp glabrous<br />
or sparsely pubescent. Seeds 2 per follicle, subtrigonous, 4–5<br />
mm, attached in dehisced follicle to a fleshy funiculate aril; seed<br />
coat with thick inner layer of dense black sclerenchyma and<br />
spongy outer layer bounded externally by a reddish brown to<br />
brownish black shiny pellicle. Fl. May and Nov, fr. Jul–Nov.<br />
Forests, thickets; 700–3000 m. SE Xizang, Yunnan [Bhutan, India,<br />
Myanmar, Nepal, Thailand, N Vietnam].<br />
2. Tetradium daniellii (Bennett) T. G. Hartley, Gard. Bull.<br />
Singapore 34: 105. 1981.<br />
臭檀吴萸 chou tan wu yu<br />
Zanthoxylum daniellii Bennett, Ann. Mag. Nat. Hist., ser.<br />
3, 10: 201. 1862; Ampacus daniellii (Bennett) Kuntze; Euodia<br />
baberi Rehder & E. H. Wilson, p.p. as to E. H. Wilson 1164 p.p.<br />
Jul 1908 (see also synonymy of Tetradium ruticarpum); E. daniellii<br />
(Bennett) Hemsley; E. daniellii var. delavayi (Dode) C. C.<br />
Huang; E. daniellii var. henryi (Dode) C. C. Huang; E. daniellii<br />
var. hupehensis (Dode) C. C. Huang; E. daniellii var. labordei<br />
(Dode) C. C. Huang; E. daniellii var. villicarpa (Rehder & E. H.<br />
Wilson) C. C. Huang; E. delavayi Dode; E. henryi Dode; E.<br />
henryi var. villicarpa Rehder & E. H. Wilson; E. hupehensis<br />
Dode; E. labordei Dode; E. sutchuenensis Dode, p.p. as to R. P.<br />
Farges 1284 p.p. (see also synonymy of Phellodendron chinense<br />
var. chinense); E. velutina Rehder & E. H. Wilson; E. vestita<br />
W. W. Smith; Z. bretschneideri Maximowicz.<br />
Shrubs or trees, to 20 m tall. Leaves 15–44 cm, 5–9(or<br />
11)-foliolate; leaflet blades broadly ovate to lanceolate or rarely<br />
elliptic or elliptic-oblong, 5–18.5 × 2.5–10.5 cm, abaxially<br />
sometimes ± glaucous and not papillate, secondary veins 7–14<br />
on each side of midvein, reticulate veinlets abaxially usually<br />
inconspicuous, base in lateral leaflets narrowly cuneate, subtruncate,<br />
subrounded, or subcordate and in terminal leaflet narrowly<br />
cuneate, cuneate, or occasionally rounded, margin subentire<br />
to crenulate, apex acuminate. Inflorescences 3.5–19 cm.<br />
Flowers (4 or)5-merous. Sepals 0.5–1.5 mm. Petals white or<br />
whitish but drying whitish or pale brown, (2.5–)3–5 mm, outside<br />
glabrous, inside sparsely or sometimes densely pubescent or<br />
villous. Ovary pubescent between carpels, otherwise ± densely<br />
pubescent to glabrous; ovules 2 per carpel, superposed. Fruit<br />
(including abortive carpels, if any) usually 5-carpelled; follicles<br />
narrowly pyriform, 5–11 mm, sparsely to ± densely spreading<br />
pubescent, apex beaked; endocarp glabrous. Seeds 2 per follicle,<br />
superposed, black, ovoid to ellipsoid, shiny, attached in dehisced<br />
fruit to axile strip of pergamentaceous pericarp tissue; basal seed<br />
sterile, usually 1.5–3.5 mm, containing what appears to be en-<br />
<strong>RUTACEAE</strong><br />
dosperm but no embryo; apical seed fertile, 2.5–4 mm; seed coat<br />
sclerenchymatous, lacking spongy tissue, in fertile seed thick<br />
and resistant to breakage, in sterile seed thin and brittle. Fl.<br />
Jun–Aug, fr. Aug–Nov. 2n = 76, 78.<br />
Forests, forest margins, open slopes; near sea level to 3200 m.<br />
Anhui, S Gansu, Guizhou, Hebei, Henan, Hubei, Jiangsu, Liaoning, S<br />
Ningxia, E Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, SE Xizang,<br />
Yunnan [Korea].<br />
3. Tetradium calcicola (Chun ex C. C. Huang) T. G. Hartley,<br />
Gard. Bull. Singapore 34: 108. 1981.<br />
石山吴萸 shi shan wu yu<br />
Euodia calcicola Chun ex C. C. Huang, Acta Phytotax. Sin.<br />
6: 120. 1957.<br />
Shrubs or trees, to 15 m tall. Leaves 9–19 cm, 5-foliolate;<br />
leaflet blades ovate to elliptic, 5–9.5 × 2.3–4.5 cm, abaxially ±<br />
glaucous and not papillate, secondary veins 10–14 on each side<br />
of midvein, reticulate veinlets abaxially usually inconspicuous,<br />
base in lateral leaflets and in terminal leaflet obtuse to rounded,<br />
margin entire, apex acuminate. Inflorescences 5.5–13 cm.<br />
Flowers 5-merous. Sepals 0.7–1 mm. Petals purple but drying<br />
dull purplish red, 3–4 mm, outside sparsely to ± densely appressed<br />
pubescent, inside villous. Ovary sparsely to ± densely<br />
appressed pubescent; ovules 2 per carpel, superposed. Fruit<br />
(including abortive carpels, if any) 5-carpelled; follicles<br />
pyriform, ca. 5 mm, laterally densely appressed pubescent,<br />
otherwise glabrate, apex not beaked; endocarp glabrous. Seeds 2<br />
per follicle, superposed, black, ellipsoid, shiny, attached in<br />
dehisced fruit to axile strip of pergamentaceous pericarp tissue;<br />
basal seed sterile, ca. 2 mm, containing what appears to be<br />
endosperm but no embryo; apical seed fertile, ca. 3 mm; seed<br />
coat sclerenchymatous, lacking spongy tissue, in sterile seed thin<br />
and brittle, in fertile seed thick and resistant to breakage. Fl.<br />
Jun–Sep, fr. Sep–Dec.<br />
● Forests, thickets; 600–800 m. N and W Guangxi, S Guizhou, SE<br />
Yunnan.<br />
4. Tetradium glabrifolium (Champion ex Bentham) T. G.<br />
Hartley, Gard. Bull. Singapore 34: 109. 1981.<br />
楝叶吴萸 lian ye wu yu<br />
Boymia glabrifolia Champion ex Bentham, Hooker’s J.<br />
Bot. Kew Gard. Misc. 3: 330. 1851; Ampacus meliifolia (Hance<br />
ex Walpers) Kuntze; Euodia ailantifolia Pierre; E. balansae<br />
Dode; E. fargesii Dode; E. glabrifolia (Champion ex Bentham)<br />
C. C. Huang; E. glauca Miquel; E. meliifolia (Hance ex Walpers)<br />
Bentham; E. taiwanensis T. Yamazaki; E. yunnanensis C.<br />
C. Huang; Eurycoma dubia Elmer; Megabotrya meliifolia Hance<br />
ex Walpers; Phellodendron burkillii Steenis; Tetradium glabrifolium<br />
var. glaucum (Miquel) T. Yamazaki; T. taiwanense (T.<br />
Yamazaki) T. Yamazaki.<br />
Shrubs or trees, to 20 m tall. Leaves 14–38 cm, (3<br />
or)5–19-foliolate; leaflet blades broadly ovate to lanceolate or<br />
less often elliptic or elliptic-oblong, 4–15 × 1.7–6 cm, abaxially<br />
usually glaucous and not papillate, secondary veins 8–18 on<br />
each side of midvein, reticulate veinlets abaxially clearly defined<br />
and dense, base in lateral leaflets narrowly cuneate to sub-
ounded to subtruncate and in terminal leaflet narrowly cuneate<br />
to cuneate, margin entire or ± crenulate, apex acuminate. Inflorescences<br />
9–19 cm. Flowers (4 or)5-merous. Sepals ca. 0.5 mm.<br />
Petals green, yellow, or white but drying whitish to brown, 2.7–4<br />
mm, outside glabrous or sometimes with sparse appressed trichomes,<br />
inside nearly glabrous to villous. Ovary ± densely pubescent<br />
between carpels, otherwise finely pubescent toward<br />
apex or glabrous; ovules 2 per carpel, collateral or subcollateral.<br />
Fruit (including abortive carpels, if any) usually 5-carpelled;<br />
follicles trigonous, 3.5–5 mm, laterally sparsely to densely appressed<br />
pubescent, otherwise glabrous, apex not beaked; endocarp<br />
sparsely to ± densely pubescent. Seeds 1 per follicle but<br />
paired with an abortive seed, subglobose to ovoid to broadly<br />
ellipsoid, 2.5–4 mm, attached in dehisced follicle to axile strip of<br />
pergamentaceous pericarp tissue; seed coat with thick inner layer<br />
of dense black sclerenchyma and spongy outer layer bounded<br />
externally by a shiny black pellicle. Fl. Jun–Sep, fr. Sep–Dec.<br />
Forests, thickets, open places; near sea level to 1200 m. Anhui,<br />
Fujian, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hubei, Hunan,<br />
Jiangxi, S Shaanxi, Sichuan, Taiwan, Yunnan, Zhejiang [Bhutan, India,<br />
Indonesia, Japan (including Ryukyu Islands), Malaysia, Myanmar,<br />
Philippines, Thailand, Vietnam].<br />
5. Tetradium trichotomum Loureiro, Fl. Cochinch. 1: 91.<br />
1790.<br />
牛枓吴萸 niu dou wu yu<br />
Ampacus trichotoma (Loureiro) Kuntze; Brucea trichotoma<br />
(Loureiro) Sprengel; Euodia colorata Dunn; E. hainanensis<br />
Merrill; E. lenticellata C. C. Huang; E. trichotoma (Loureiro)<br />
Elmer; E. trichotoma var. pubescens C. C. Huang; E. viridans<br />
Drake.<br />
Shrubs or trees, to 8 m tall. Leaves 12–37 cm, (3 or)5–11(or<br />
13)-foliolate; leaflet blades elliptic-oblong, lanceolate, or occasionally<br />
ovate, 3–16 × 3–5 cm, abaxially neither glaucous nor<br />
papillate, secondary veins 11–14 on each side of midvein, reticulate<br />
veinlets abaxially inconspicuous, margin entire, base in<br />
lateral leaflets subrounded to cuneate and in terminal leaflet<br />
cuneate, apex acuminate. Inflorescences 5–30 cm. Flowers 4(or<br />
5)-merous. Sepals 0.5–1 mm. Petals green, yellow, or white but<br />
drying brown to whitish, 3–4 mm, outside glabrous, inside<br />
glabrous or sparsely villosulous. Ovary glabrous or with a few<br />
short trichomes between carpels toward base; ovules 2 per<br />
carpel, collateral. Fruit (including abortive carpels, if any) usually<br />
4-carpelled; follicles subglobose to obovoid, 4–7 mm, glabrous<br />
or laterally with sparse pubescence toward base, apex not<br />
beaked; endocarp glabrous. Seeds 1 per follicle but paired with<br />
an abortive seed, subglobose to broadly ovoid, 3.7–6 mm,<br />
attached in dehisced follicle to axile strip of pergamentaceous<br />
pericarp tissue; seed coat with thick inner layer of dense black<br />
sclerenchyma and spongy outer layer bounded externally by a<br />
shiny black pellicle. Fl. Apr–Aug, fr. Sep–Nov.<br />
Forests, thickets; 300–1900 m. SE Guangdong, Guangxi, S Guizhou,<br />
Hainan, Hubei, Shaanxi, S Sichuan, Yunnan [Laos, Thailand, N<br />
Vietnam].<br />
6. Tetradium ruticarpum (A. Jussieu) T. G. Hartley, Gard.<br />
Bull. Singapore 34: 116. 1981.<br />
<strong>RUTACEAE</strong><br />
吴茱萸 wu zhu yu<br />
Boymia ruticarpa A. Jussieu, Mém. Mus. Hist. Nat. 12:<br />
507. 1825; Ampacus ruticarpa (A. Jussieu) Kuntze; Euodia<br />
baberi Rehder & E. H. Wilson, p.p. as to E. H. Wilson 1164 p.p.<br />
Oct 1908 (see also synonymy of Tetradium daniellii); E.<br />
bodinieri Dode; E. compacta Handel-Mazzetti; E. compacta var.<br />
meionocarpa Handel-Mazzetti; E. hirsutifolia Hayata; E.<br />
officinalis Dode; E. rugosa Rehder & E. H. Wilson; E. ruticarpa<br />
(A. Jussieu) Bentham; E. ruticarpa var. bodinieri (Dode) C. C.<br />
Huang; E. ruticarpa var. officinalis (Dode) C. C. Huang.<br />
Shrubs or trees, to 9 m tall. Leaves 15–40 cm, (3 or)5–13(or<br />
15)-foliolate; leaflet blades elliptic to ovate or sometimes<br />
lanceolate, oblanceolate, or obovate, 4.5–17 × 2–8 cm, abaxially<br />
rarely slightly glaucous and not papillate, secondary veins 9–17<br />
on each side of midvein, reticulate veinlets abaxially ± inconspicuous<br />
and ± loose, base in lateral leaflets obtuse to narrowly<br />
cuneate or sometimes rounded to cuneate or rarely attenuate,<br />
margin entire or irregularly crenulate, apex acuminate. Inflorescences<br />
2.5–18 cm. Flowers (4 or)5-merous. Sepals 0.5–1.2<br />
mm. Petals green, yellow, or white but drying brown to whitish,<br />
3–5 mm, outside glabrous or with sparse short trichomes, inside<br />
nearly glabrous to villous. Ovary glabrous or with sparse<br />
trichomes; ovules 2 per carpel, collateral or subcollateral. Fruit<br />
(including abortive carpels, if any) usually 5-carpelled; follicles<br />
subglobose, 3.5–6 mm, glabrous or sometimes with sparse<br />
trichomes, apex not beaked; endocarp glabrous. Seeds 1 per<br />
follicle but paired with an abortive seed, ovoid or sometimes<br />
ellipsoid or subglobose, 3.5–5.5 mm, attached in dehisced<br />
follicle to axile strip of pergamentaceous pericarp tissue; seed<br />
coat with thick inner layer of dense black sclerenchyma and<br />
spongy outer layer bounded externally by a shiny black pellicle.<br />
Fl. Apr–Jun, fr. Aug–Nov.<br />
Forests, thickets, open places; 100–3000 m. Anhui, Fujian, S<br />
Gansu, Guangdong, Guangxi, Guizhou, Hebei, S Henan, Hubei, Hunan,<br />
S Jiangsu, Jiangxi, S Shaanxi, Sichuan, Yunnan, Zhejiang [Bhutan, NE<br />
India, Myanmar, Nepal].<br />
7. Tetradium austrosinense (Handel-Mazzetti) T. G. Hartley,<br />
Gard. Bull. Singapore 34: 120. 1981.<br />
华南吴萸 hua nan wu yu<br />
Euodia austrosinensis Handel-Mazzetti, Sinensia 5: 1.<br />
1934.<br />
Trees to 20 m tall. Leaves 20–35 cm, 7–11-foliolate; leaflet<br />
blades broadly elliptic or sometimes ovate, lanceolate, obovate,<br />
or oblanceolate, 5.5–14.5(–17) × 2.5–7(–8.5) cm, abaxially<br />
glaucous and finely papillate, secondary veins 9–12 on each side<br />
of midvein, reticulate veinlets abaxially usually ± conspicuous<br />
and ± loose, base in lateral leaflets obtuse to nearly rounded and<br />
in terminal leaflet cuneate, margin entire, apex acuminate. Inflorescences<br />
11–18 cm. Flowers (4 or)5-merous. Sepals ca. 0.5<br />
mm. Petals green to greenish yellow but drying brown, 2.5–3<br />
mm, outside glabrous to sparsely puberulent, inside sparsely to<br />
densely villous. Ovary glabrous; ovules 1 per carpel. Fruit (including<br />
abortive carpels, if any) usually 5-carpelled; follicles<br />
trigonous to subtrigonous, ca. 3.5 mm, glabrous or rarely with a<br />
69
70<br />
few scattered trichomes, apex not beaked; endocarp glabrous.<br />
Seeds 1 per follicle and not paired with an abortive seed, ellipsoid<br />
to subreniform, 2.3–2.5 mm, attached in dehisced follicle to<br />
axile strip of pergamentaceous pericarp tissue; seed coat with<br />
thick inner layer of dense black sclerenchyma and spongy outer<br />
<strong>RUTACEAE</strong><br />
layer bounded externally by a shiny black pellicle. Fl. Jun–Jul,<br />
fr. Sep–Nov.<br />
Forests; 300–1500 m. Guangdong, Guangxi, S Yunnan [N Vietnam].<br />
4. MELICOPE J. R. Forster & G. Forster, Char. Gen. Pl. 28. 1775.<br />
蜜茱萸属 mi zhu yu shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Shrubs, trees, rarely scandent, evergreen, usually dioecious or sometimes monoclinous or andromonoecious. Leaves opposite [or<br />
whorled], digitately 3-foliolate or 1-foliolate. Inflorescences axillary or basal to leaves, cymulose to thyrsiform [or reduced to solitary<br />
flowers]. Sepals 4, connate at base or to nearly their full length. Petals 4, valvate or narrowly imbricate in bud. Stamens 4 or 8 [or 4–8],<br />
rudimentary in female flowers. Disk pulvinate to annular to cup-shaped. Gynoecium 4-carpelled, rudimentary or lacking in male<br />
flowers; ovaries connate at base, otherwise contiguous [or connate up to their full length]; ovules [1 or] 2 per locule; style apical or<br />
subapical, of 4 contiguous, coherent, or connate stylar elements; stigma usually punctiform, capitellate, or capitate. Fruit of 1–4 basally<br />
connate follicles [or grading to a syncarpous 4-loculed loculicidal capsule]; exocarp dry to fleshy; endocarp cartilaginous. Seeds<br />
remaining attached in dehisced fruit; seed coat with thick inner layer of dense black sclerenchyma and spongy outer layer bounded<br />
externally by a shiny black pellicle; endosperm copious; embryo straight or slightly curved; cotyledons elliptic, flattened; hypocotyl<br />
superior.<br />
About 233 species: E, S, and SE Asia, Australia, Indian Ocean islands (Mascarenes), Madagascar, Pacific islands; eight species (two endemic) in<br />
China.<br />
As discussed by Hartley (Allertonia 8: 19, f. 5. 2001), two types of attachment of mature seed are seen in dehisced fruit of Melicope. In Type A, the<br />
attachment is by a partially detached axile strip of pericarp tissue or by a partially detached raphe, or by both. In Type B, neither the axile pericarp tissue<br />
nor the raphe is detached, and the seed is connected to the axile placental region by a funiculus, which is simply the funiculus of the ovule enlarged.<br />
1a. Stamens 8; seed attachment Type A.<br />
2a. Leaves 1-foliolate; follicles ellipsoid to obovoid, ca. 6.5 mm ......................................................................... 1. M. patulinervia<br />
2b. Leaves mostly 3-foliolate; follicles subglobose, 3–4.5 mm ................................................................................... 2. M. triphylla<br />
1b. Stamens 4; seed attachment Type B.<br />
3a. Inflorescences 0.7–1.8(–2) cm wide; apex of staminal filaments at least in male and bisexual flowers obtuse<br />
or narrowly so or sometimes acute; petals usually persistent in fruit; leaves 3-foliolate and/or 1-foliolate.<br />
4a. Petioles sparsely puberulent to pubescent adaxially, otherwise glabrous or nearly so ..................................... 7. M. viticina<br />
4b. Petioles pubescent to velutinous all around .................................................................................................. 8. M. glomerata<br />
3b. Inflorescences 1.5–16 cm wide; apex of staminal filaments at least in male and bisexual flowers subulate<br />
to filiform; petals usually deciduous in fruit; leaves mostly 3-foliolate.<br />
5a. Young branchlets 4.5–10 mm wide in third internode; leaflet blades abaxially strigillose to ±<br />
appressed villosulous ............................................................................................................................. 4. M. semecarpifolia<br />
5b. Young branchlets 2–4.5 mm wide in third internode; leaflet blades abaxially glabrous to puberulent.<br />
6a. Larger primary branches of inflorescences usually spreading; leaflet blades ovate-elliptic,<br />
elliptic, or elliptic-obovate, or narrowly so; inflorescences 2–10 × 1.5–8 cm; pedicel sparsely<br />
puberulent to pubescent ........................................................................................................................... 6. M. pteleifolia<br />
6b. Larger primary branches of inflorescences usually ascending; leaflet blades usually elliptic or<br />
narrowly so; inflorescences 4.5–32 × 3–16 cm; pedicel glabrous to tomentulose.<br />
7a. Leaflet blades elliptic, sometimes ovate-elliptic, or rarely obovate; inflorescences<br />
8–32 × 3–16 cm; pedicel nearly glabrous to tomentulose ......................................................... 3. M. lunu-ankenda<br />
7b. Leaflet blades ± narrowly elliptic; inflorescences 4.5–9 × 3–4.5 cm; pedicel glabrous ....................... 5. M. chunii<br />
1. Melicope patulinervia (Merrill & Chun) C. C. Huang, Acta<br />
Phytotax. Sin. 6: 132. 1957.<br />
蜜茱萸 mi zhu yu<br />
Euodia patulinervia Merrill & Chun, Sunyatsenia 5: 87.<br />
1940.<br />
Shrubs 1–3 m tall. Young branchlets 2–3 mm wide in third<br />
internode. Leaves 1-foliolate, glabrous; petiole 0.2–3 cm; leaflets<br />
sessile; leaflet blades elliptic, narrowly elliptic, or elliptic-obovate,<br />
5–15 × 1.5–6 cm, apex acute to acuminate. Inflorescences<br />
axillary, to 3 cm. Sepals most likely in female flowers,<br />
ca. 0.5 mm, outside sparsely puberulent, basally connate,<br />
deciduous in fruit. Petals ca. 1.5 mm, deciduous in fruit. Stamens<br />
8, shorter than petals. Gynoecium glabrous; ovary globose; style<br />
very short. Infructescences 1–2 × 1.3–2.5 cm; peduncle 3–10
mm. Pedicel 2–3.5 mm, sparsely puberulent. Fruit follicles<br />
ellipsoid to obovoid, ca. 6.5 mm, glabrous. Seeds ellipsoid to<br />
obovoid, 4–5 mm, attachment Type A. Fl. Mar–Apr, fr. Sep–<br />
Oct.<br />
● Dense or ± open forests; 700–900 m. Hainan.<br />
2. Melicope triphylla (Lamarck) Merrill, Philipp. J. Sci., C, 7:<br />
375. 1912.<br />
三叶蜜茱萸 san ye mi zhu yu<br />
Fagara triphylla Lamarck, Encycl. 2: 447. 1788; Acronychia<br />
minahassae (Teijsmann & Binnendijk) Miquel; Ampacus<br />
incerta (Blume) Kuntze; A. triphylla (Lamarck) Kuntze; Bergera<br />
ternata Blanco; Euodia anisodora Lauterbach & K. Schumann;<br />
E. awadan Hatusima; E. glaberrima Merrill; E. incerta<br />
Blume; E. laxireta Merrill; E. microsperma F. M. Bailey; E.<br />
minahassae Teijsmann & Binnendijk; E. philippinensis Merrill<br />
& L. M. Perry; E. triphylla (Lamarck) Candolle; Melicope<br />
awadan (Hatusima) Ohwi & Hatusima; M. curranii Merrill; M.<br />
densiflora Merrill; M. gjellerupii Lauterbach; ?M. kanehirae<br />
Hatusima; M. luzonensis Engler ex Perkins; M. mahonyi F. M.<br />
Bailey; M. mindanaensis Elmer; M. monophylla Merrill; M.<br />
monophylla var. glabra Elmer; M. nitida Merrill; M. obtusa<br />
Merrill; M. odorata Elmer; M. rupestris Lauterbach; Zanthoxylum<br />
triphyllum (Lamarck) G. Don.<br />
Shrubs or trees, 1.5–6 m tall, dioecious or sometimes monoclinous<br />
or andromonoecious. Young branchlets 3–4 mm wide in<br />
third internode. Leaves 3-foliolate (occasional leaves 1-foliolate),<br />
glabrous; petiole 2–6.5 cm; leaflet blades obovate, oblanceolate,<br />
or rarely elliptic, in terminal leaflet 5–12 × 2–4.5 cm,<br />
apex acuminate or rarely acute. Inflorescences axillary, 3–7 ×<br />
2–6 cm; peduncle obsolete or to 1.5 cm. Pedicel 1.5–3 mm and<br />
of similar length in fruit, glabrous. Sepals 0.5–0.8 mm, glabrous<br />
or with a few trichomes at apex, connate at base or to ± half their<br />
length, persistent in fruit. Petals 2.5–3.5 mm, deciduous in fruit.<br />
Stamens 8, in male and bisexual flowers those opposite sepals<br />
2–4 mm and in female flowers 0.5–3.5 mm; filaments at least in<br />
male and bisexual flowers acute to subulate at apex. Gynoecium<br />
glabrous, in female and bisexual flowers 0.8–1.6 mm, in male<br />
flowers 0.3–0.5 mm. Fruit follicles subglobose, 3–4.5 mm, glabrous.<br />
Seeds ellipsoid to obovoid, 3–4.5 mm, attachment Type<br />
A.<br />
Forests, thickets, open places; low elevations. Taiwan [Indonesia,<br />
Japan (Ryukyu Islands), New Guinea, Philippines; SW Pacific islands].<br />
3. Melicope lunu-ankenda (Gaertner) T. G. Hartley, Sandakania<br />
4: 61. 1994.<br />
三刈叶蜜茱萸 san yi ye mi zhu yu<br />
Fagara lunu-ankenda Gaertner, Fruct. Sem. Pl. 1: 334.<br />
1788; Ampacus aromatica (Blume) Kuntze; Euodia arborea<br />
Elmer; E. arborescens D. D. Tao; E. aromatica Blume; E.<br />
concinna Ridley; E. lucida (Miquel) Miquel; E. lunu-ankenda<br />
(Gaertner) Merrill; E. lunu-ankenda var. tirunelvelica A. N.<br />
Henry & Chandrabose; E. marambong (Miquel) Miquel; E.<br />
obtusifolia Ridley; E. punctata Merrill; E. roxburghiana (Chamisso)<br />
Bentham; E. roxburghiana var. longipes Craib; E. triphylla<br />
(Lamarck) Candolle var. pubescens Ridley; Zanthoxylum<br />
<strong>RUTACEAE</strong><br />
aromaticum (Blume) Miquel; Z. lucidum Miquel; Z. marambong<br />
Miquel; Z. roxburghianum Chamisso.<br />
Trees to 30 m tall, dioecious. Young branchlets 2.5–4.5<br />
mm wide in third internode. Leaves 3-foliolate; petiole 2–12 cm,<br />
glabrous to tomentulose; leaflet blades elliptic, sometimes ovate-<br />
elliptic, or rarely obovate, in terminal leaflet 6–21 × 2.5–8.5 cm,<br />
glabrous or puberulent to sparsely puberulent on midvein especially<br />
abaxially and sometimes on secondary veins abaxially,<br />
apex acuminate. Inflorescences axillary, 8–32 × 3–16 cm;<br />
peduncle 4–15 cm; larger primary branches usually ascending.<br />
Pedicel 0.3–2.5 mm but 1–5 mm in fruit, nearly glabrous to<br />
tomentulose. Sepals 0.5–1 mm, connate at base or to ca. 1/4 their<br />
length, glabrous or outside puberulent, persistent in fruit. Petals<br />
1.5–2.5 mm, deciduous or subpersistent in fruit. Stamens 4, in<br />
male flowers 2–4 mm, in female flowers 0.5–2.5 mm; filaments<br />
at least in male flowers subulate to filiform at apex. Gynoecium<br />
in female flowers 1–3 mm, in male flowers 0.2–0.5 mm; ovary<br />
nearly glabrous to shortly pubescent or ± sparsely villous. Fruit<br />
follicles ellipsoid, 4.5–5 mm, glabrous to sparsely puberulent.<br />
Seeds subglobose, ovoid, or ellipsoid, 3.5–4 mm, attachment<br />
Type B. Fr. Aug–Sep.<br />
Montane forests; ca. 900 m. SE Xizang (Mêdog) [Bhutan, Cambodia,<br />
India, Indonesia, Malaysia, Myanmar, Nepal, Philippines, Sri<br />
Lanka, Thailand, Vietnam].<br />
4. Melicope semecarpifolia (Merrill) T. G. Hartley, Fl. Taiwan,<br />
ed. 2, 3: 522. 1993.<br />
台湾蜜茱萸 tai wan mi zhu yu<br />
Euodia semecarpifolia Merrill, Publ. Bur. Sci. Gov. Lab.<br />
35: 23. 1906; E. camiguinensis Merrill; E. merrillii Kanehira &<br />
Sasaki; E. retusa Merrill.<br />
Small trees, dioecious. Young branchlets 4.5–10 mm wide<br />
in third internode. Leaves 3-foliolate; petiole 3.5–14 cm, ±<br />
appressed pilose or appressed villous when young; leaflet blades<br />
elliptic to obovate, in terminal leaflet 7.5–30 × 3–12 cm, both<br />
surfaces strigillose to ± appressed villosulous on midvein and<br />
often abaxially on secondary veins, apex acuminate or sometimes<br />
rounded or acute. Inflorescences axillary and sometimes<br />
basal to leaves, 3–9.5 × 2.5–8 cm; peduncle obsolete or to 3.5<br />
cm; larger primary branches usually spreading. Pedicel obsolete<br />
or to 2.5 mm, but 0.5–3 mm in fruit, glabrous to villosulous.<br />
Sepals 0.8–1 mm, connate at base or to ca. 1/4 their length,<br />
nearly glabrous to outside sericeous, persistent in fruit. Petals<br />
2–2.5 mm, deciduous or subpersistent in fruit. Stamens 4, in<br />
male flowers 3.5–4.5 mm, in female flowers 1–2 mm; filaments<br />
at least in male flowers subulate to filiform at apex. Gynoecium<br />
in female flowers ca. 1.5 mm, in male flowers 0.5–1 mm; ovary<br />
sericeous. Fruit follicles subglobose, 4–4.5 mm, nearly glabrous<br />
or sparsely pilose. Seeds subglobose to ovoid to ellipsoid, 3.5–4<br />
mm, attachment Type B. Fl. Jun–Jul, fr. Nov–Dec.<br />
Forests, thickets; lower and middle elevations. Taiwan [Philippines].<br />
5. Melicope chunii (Merrill) T. G. Hartley, Allertonia 8: 237.<br />
2001.<br />
海南蜜茱萸 hai nan mi zhu yu<br />
71
72<br />
Euodia chunii Merrill, J. Arnold Arbor. 6: 132. 1925; E.<br />
lepta Merrill var. chunii (Merrill) C. C. Huang.<br />
Shrubs or trees, 1.5–12 m tall, dioecious. Young branchlets<br />
2–3 mm wide in third internode. Leaves 3-foliolate; petiole 2–6<br />
cm, glabrous or sparsely puberulent; leaflet blades ± narrowly<br />
elliptic, in terminal leaflet 5–12 × 1.5–3.5 cm, glabrous, apex<br />
acuminate or sometimes acute. Inflorescences axillary, 4.5–9 ×<br />
3–4.5 cm; peduncle 2–3.5 cm; larger primary branches ascending.<br />
Pedicel 2–3.5 mm but 3–4 mm in fruit, glabrous. Sepals<br />
0.5–0.7 mm, connate at base or to ca. 1/4 their length, glabrous<br />
or margin irregularly ciliolate, persistent in fruit. Petals 2–2.5<br />
mm, deciduous in fruit. Stamens 4, in male flowers 2.5–3 mm, in<br />
female flowers 1.5–2.5 mm; filaments at least in male flowers<br />
subulate to filiform at apex. Gynoecium in female flowers 1.5–2<br />
mm, in male flowers 0.2–0.5 mm; ovary sparsely hirsutulous.<br />
Fruit follicles ellipsoid or obovoid, 5–6 mm, glabrate. Seeds<br />
subglobose to ellipsoid, 2.5–3.6 mm, attachment Type B.<br />
● Forests; below 400 m. Hainan.<br />
6. Melicope pteleifolia (Champion ex Bentham) T. G. Hartley,<br />
Fl. Taiwan, ed. 2, 3: 521. 1993.<br />
三桠苦 san ya ku<br />
Zanthoxylum pteleifolium Champion ex Bentham, Hooker’s<br />
J. Bot. Kew Gard. Misc. 3: 350. 1851; Euodia gracilis Kurz;<br />
E. lepta Merrill, nom. illeg. superfl.; E. lepta var. cambodiana<br />
(Pierre) C. C. Huang; E. oreophila Guillaumin (1945), not Guillaumin<br />
(1938); E. pteleifolia (Champion ex Bentham) Merrill; E.<br />
triphylla (Lamarck) Candolle var. cambodiana Pierre; Ilex lepta<br />
Sprengel, nom. illeg. superfl.; Lepta triphylla Loureiro.<br />
Shrubs or trees, rarely scandent, 1–14 m tall, dioecious or<br />
rarely monoclinous. Young branchlets 2.5–4 mm wide in third<br />
internode. Leaves 3-foliolate (occasional leaves 1-foliolate);<br />
petiole 1.5–14 cm, glabrous to pubescent; leaflet blades ovate-<br />
elliptic, elliptic, elliptic-obovate, or narrowly so, in terminal<br />
leaflet 6–22 × 2–8 cm, glabrous or puberulent on midvein especially<br />
abaxially, apex acuminate or subcaudate. Inflorescences<br />
axillary and sometimes basal to leaves, 2–10 × 1.5–8 cm;<br />
peduncle 0.4–5 cm; larger primary branches usually spreading.<br />
Pedicel 0.6–3 mm but 1.5–6 mm in fruit, sparsely puberulent to<br />
pubescent. Sepals 0.5–1(–1.5) mm, connate at base or to ca. 1/4<br />
their length, glabrous or outside pubescent, persistent in fruit.<br />
Petals 1.3–2(–2.5) mm, deciduous or rarely persistent in fruit.<br />
Stamens 4, in male and bisexual flowers 1.5–3(–4) mm, in female<br />
flowers 0.4–1.5 mm; filaments at least in male and bisexual<br />
flowers subulate to filiform at apex. Gynoecium in female and<br />
bisexual flowers 1–2 mm, in male flowers 0.2–0.5 mm; ovary<br />
glabrous to pubescent. Fruit follicles subglobose to ellipsoid to<br />
obovoid, (3–)3.5–7.5 mm, glabrous or sparsely puberulent.<br />
Seeds subglobose to ovoid to ellipsoid, 2.5–4 mm, attachment<br />
Type B. Fl. Apr–Jun, fr. Jul–Oct.<br />
Evergreen and mixed deciduous forests and forest margins, thickets,<br />
swamp forests, open places; near sea level to 2300(–2800) m. Fujian,<br />
Guangdong, SW Guangxi, Hainan, S Jiangxi, Taiwan, Yunnan, SE<br />
Zhejiang [Cambodia, Laos, Myanmar, Thailand, Vietnam].<br />
7. Melicope viticina (Wallich ex Kurz) T. G. Hartley, Allertonia<br />
8: 262. 2001.<br />
<strong>RUTACEAE</strong><br />
单叶蜜茱萸 dan ye mi zhu yu<br />
Euodia viticina Wallich ex Kurz, J. Asiat. Soc. Bengal, Pt.<br />
2, Nat. Hist. 42: 64. 1873.<br />
Shrubs or trees, 0.8–6 m tall, dioecious or sometimes<br />
monoclinous. Young branchlets 1–3 mm wide in third internode.<br />
Leaves 1- or 3-foliolate. Leaves 3-foliolate: petiole 1.5–7 cm,<br />
adaxially sparsely puberulent to pubescent, otherwise glabrous<br />
or nearly so; leaflet blades elliptic or elliptic-obovate, or narrowly<br />
so, or rarely obovate or oblanceolate, in terminal leaflet<br />
5.5–21 × 1.5–6.5 cm, glabrous or sparsely puberulent to shortly<br />
pubescent on midvein, apex acuminate or rarely acute. Leaves<br />
1-foliolate: petiole 0.3–4.5 cm; leaflet blades elliptic or elliptic-obovate,<br />
or narrowly so, 2.2–22 × 0.7–7.5 cm, otherwise<br />
similar to 3-foliolate leaves. Inflorescences axillary and sometimes<br />
basal to leaves, 0.5–5(–8.5) × 0.7–1.8(–2) cm; peduncle<br />
obsolete or to 2.5 cm; larger primary branches spreading or<br />
ascending. Pedicel 0.5–1.5 mm but 1.5–3 mm in fruit, glabrous<br />
to sparsely puberulent. Sepals 1–1.8 mm, connate at base,<br />
glabrous or outside sparsely puberulent, persistent in fruit. Petals<br />
2.5–3 mm, persistent or rarely deciduous in fruit. Stamens 4, in<br />
male and bisexual flowers 2.2–3 mm, in female flowers 0.8–1.5<br />
mm; filaments at least in male and bisexual flowers obtuse or<br />
narrowly so at apex. Gynoecium in female and bisexual flowers<br />
1.5–2 mm, in male flowers 0.3–0.6 mm; ovary glabrous or rarely<br />
sparsely pubescent. Fruit follicles subglobose to ellipsoid, 5–7<br />
mm, glabrous. Seeds ovoid to ellipsoid, 4–6.5 mm, attachment<br />
Type B. Fl. Apr–May, fr. Aug–Oct.<br />
Open forests; 500–1300 m. S Yunnan [Cambodia, Laos, Myanmar,<br />
Thailand, Vietnam].<br />
Plants mistakenly treated as Euodia simplicifolia Ridley var. simplicifolia<br />
by C. C. Huang (Fl. Reipubl. Popularis Sin. 43(2): 58. 1997)<br />
belong here.<br />
8. Melicope glomerata (Craib) T. G. Hartley, Allertonia 8: 263.<br />
2001.<br />
密果蜜茱萸 mi guo mi zhu yu<br />
Euodia glomerata Craib, Bull. Misc. Inform. Kew 1918:<br />
362. 1918; E. simplicifolia Ridley var. pubescens C. C. Huang.<br />
Shrubs 0.5–1.5 m tall or rarely trees to 11 m tall, dioecious<br />
or rarely monoclinous. Young branchlets 2–4.5 mm wide in<br />
third internode. Leaves 1- or 3-foliolate. Leaves 3-foliolate:<br />
petiole 1.5–7 cm, pubescent to velutinous; leaflet blades elliptic<br />
to obovate, or narrowly so, in terminal leaflet 3.5–16 × 1.3–6.5<br />
cm, pubescent or sparsely so at least abaxially on midvein and<br />
secondary veins and adaxially on midvein, apex obtuse to acuminate.<br />
Leaves 1-foliolate: petiole 0.8–1.5 cm; leaflet blade<br />
elliptic to obovate, 4–9.5 × 2–3.8 cm, otherwise similar to<br />
3-foliolate leaves. Inflorescences axillary and sometimes basal<br />
to leaves, 0.8–6 × 0.8–1.7 cm; peduncle 0.1–2.5 cm; larger<br />
primary branches spreading or ascending. Pedicel 0.6–2 mm<br />
but 2.5–4 mm in fruit, sparsely hispidulous to pubescent. Sepals<br />
1–2 mm, connate at base, outside hirsutulous or sparsely so or<br />
rarely nearly glabrous, persistent in fruit. Petals 2–3.5 mm,<br />
persistent in fruit. Stamens 4, in male and bisexual flowers
1.5–2.5 mm, in female flowers 1.5–2 mm; filaments at least in<br />
male and bisexual flowers narrowly obtuse or sometimes acute<br />
at apex. Gynoecium glabrous, in female and bisexual flowers<br />
1–1.5 mm, in male flowers ca. 0.3 mm. Fruit follicles obovoid,<br />
<strong>RUTACEAE</strong><br />
5–8 mm, glabrous. Seeds ovoid, 4–5 mm, attachment Type B.<br />
Fr. Aug.<br />
Open forests; 500–700 m. S Yunnan [Laos, Myanmar, Thailand].<br />
5. BOENNINGHAUSENIA Reichenbach ex Meisner, Pl. Vasc. Gen. 1: 60; 2: 44. 1837,<br />
nom. cons., not Boenninghausia Sprengel (1826).<br />
石椒草属 shi jiao cao shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Herbs, perennial. Leaves alternate, pinnately to ternately decompound. Inflorescences terminal and axillary, paniculate, with<br />
simple foliar bracts. Flowers bisexual, actinomorphic. Sepals 4, connate at base or to nearly their full length. Petals 4, imbricate in bud,<br />
margin entire. Stamens (6–)8, distinct. Disk annular to cup-shaped, surrounding and separate from a slender manifestly accrescent<br />
gynophore which often becomes apically 4-parted. Gynoecium 4-carpelled; ovaries coherent in ± their basal half, otherwise<br />
contiguous; ovules several per locule; style lateral, of 4 coherent stylar elements; stigma punctiform or capitellate. Fruit of 4 distinct<br />
apically dehiscent follicles; endocarp thinly cartilaginous, adnate to mesocarp in dehisced fruit. Seeds reniform; seed coat leathery,<br />
tuberculate; endosperm ± copious; embryo curved; cotyledons elliptic, flattened; hypocotyl superior.<br />
One species: E, S, and SE Asia.<br />
1. Boenninghausenia albiflora (Hooker) Reichenbach ex<br />
Meisner, Pl. Vasc. Gen. 2: 44. 1837.<br />
臭节草 chou jie cao<br />
Ruta albiflora Hooker, Exot. Fl. 1: t. 79. 1823; Bodinieria<br />
thalictrifolia H. Léveillé; Boenninghausenia albiflora var.<br />
brevipes Franchet; B. albiflora var. pilosa Z. M. Tan; B. brevipes<br />
(Franchet) H. Léveillé; B. japonica Siebold ex Miquel; B.<br />
schizocarpa S. Y. Hu; B. sessilicarpa H. Léveillé; Podostaurus<br />
thalictroides Junghuhn.<br />
Plants to 1.2 m tall. Stems, branches, leaves, and inflorescences<br />
glabrous to pubescent. Larger leaves 4–16 cm; leaflet<br />
blades elliptic to obovate to broadly obovate to suborbicular,<br />
0.5–2.5 × 0.4–1.5 cm. Inflorescences to 60 cm. Flowers globose<br />
to ovoid to ellipsoid to oblong in bud. Sepals 0.5–1.3 mm. Petals<br />
elliptic to obovate, or broadly so, 3.5–6 mm, apex acute to<br />
broadly rounded. Disk 0.3–0.5 mm. Gynophore in flowers at<br />
anthesis 0.3–1.5 mm, in fruit 0.6–5.5 mm. Fruit follicles 2.5–5<br />
mm. Fl. and fr. May–Nov.<br />
Open forests, grassy slopes; 500–2800 m. Anhui, Fujian, Gansu,<br />
Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi,<br />
Sichuan, Taiwan, SE Xizang, Yunnan, Zhejiang [Bhutan, India, Indonesia,<br />
Japan, Kashmir, Laos, Myanmar, Nepal, Pakistan, Philippines,<br />
Thailand, N Vietnam].<br />
6. HAPLOPHYLLUM A. Jussieu, Mém. Mus. Hist. Nat. 12: 464. 1825 [“Aplophyllum”],<br />
nom. cons., not Aplophyllum Cassini (1824).<br />
拟芸香属 ni yun xiang shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Herbs, perennial [or sometimes low shrubs]. Leaves alternate, simple [occasional leaves 3- or 5-parted]. Inflorescences terminal,<br />
cymose and often corymbiform, (1- or) few to many flowered. Flowers bisexual, actinomorphic. Sepals 5, distinct or connate to ± half<br />
their length. Petals 5, imbricate in bud, margin entire. Stamens 10, distinct [or monadelphous]. Disk pulvinate. Gynoecium (2<br />
or)3–5-carpelled; ovaries connate in ± their basal half, otherwise contiguous; ovules few or several per locule; style lateral, of (2 or)3–5<br />
contiguous or connate stylar elements; stigma punctiform or capitellate. Fruit a (2 or)3–5-carpelled loculicidal capsule or rarely<br />
indehiscent, with carpels connate as in gynoecium; endocarp thinly cartilaginous, adnate to mesocarp in dehisced fruit. Seeds reniform;<br />
seed coat leathery, rugose; endosperm copious; embryo curved; cotyledons elliptic-oblong, flattened; hypocotyl superior.<br />
About 65 species: N Africa, Asia, S Europe; three species (one endemic) in China.<br />
1a. Leaf blade ovate to lanceolate, 5–20 mm wide, secondary veins prominent ........................................................... 2. H. acutifolium<br />
1b. Leaf blade elliptic, lanceolate, or linear, 1–5 mm wide, secondary veins not prominent.<br />
2a. Inflorescences many flowered; gynoecium 2- or 3-carpelled ............................................................................... 1. H. dauricum<br />
2b. Inflorescences 1-flowered; gynoecium 4- or 5-carpelled .......................................................................... 3. H. tragacanthoides<br />
1. Haplophyllum dauricum (Linnaeus) G. Don, Gen. Hist. 1:<br />
781. 1831.<br />
北芸香 bei yun xiang<br />
Peganum dauricum Linnaeus, Sp. Pl. 1: 445. 1753; Haplophyllum<br />
lineare (Candolle) G. Don; Ruta daurica (Linnaeus)<br />
Candolle.<br />
Herbs, perennial. Underground part woody, above-ground<br />
part many branched; branchlets slender, 10–20 cm, puberulent<br />
when young. Leaves subsessile; leaf blade lanceolate to linear,<br />
5–20 × 1–5 mm, grayish green, with oil glands, base attenuate,<br />
apex acute. Inflorescences many flowered or very rarely<br />
3-flowered; bracts linear, small. Sepals ca. 1 mm, basally connate,<br />
margin pubescent. Petals yellowish to pale yellowish<br />
73
74<br />
white, oblong, 6–8 mm, with scattered semipellucid oil glands.<br />
Staminal filaments enlarged in ± their basal half; anthers<br />
elongately ellipsoid; connective with an apical oil gland. Ovary<br />
globose, (2 or)3(or 4)-loculed; style slender; stigma slightly<br />
enlarged. Fruiting carpels 2-seeded. Seeds brownish black,<br />
2–2.5 × 1–1.5 mm. Fl. Jun–Jul, fr. Aug–Sep.<br />
Hill slopes; low elevations. Gansu, Hebei, Heilongjiang, Jilin, Nei<br />
Mongol, Ningxia, Shaanxi, Xinjiang [Mongolia, Russia].<br />
2. Haplophyllum acutifolium (Candolle) G. Don, Gen. Hist. 1:<br />
780. 1831.<br />
大叶芸香 da ye yun xiang<br />
Ruta acutifolia Candolle, Prodr. 1: 711 1824; Haplophyllum<br />
flexuosum Boissier; H. perforatum Karelin & Kirilov;<br />
H. sieversii Fischer & C. A. Meyer; R. flexuosa (Boissier)<br />
Engler; R. perforata M. Bieberstein; R. sieversii (Fischer & C.<br />
A. Meyer) B. Fedtschenko.<br />
Herbs, perennial, to 80 cm tall. Stem many branched;<br />
branches stout, spreading, glabrous, with oil glands; branchlets<br />
angular. Leaves glabrous; petiole 4–6 mm or leaf subsessile; leaf<br />
blade ovate to rhombic but on basal part of branches lanceolate<br />
and on apical part of branches narrowly elliptic, 3–5 × 0.5–2 cm,<br />
thickly papery, with oil glands. Inflorescences many flowered;<br />
rachis pubescent when young; bracts linear to narrowly elliptic,<br />
margin ciliate. Flowers pedicellate. Sepals triangular-ovate, to 1<br />
mm, basally connate. Petals yellow, ca. 3 × 1.5 mm, with<br />
scattered semipellucid oil glands. Staminal filaments flattened in<br />
± their basal half. Ovary globose; style ca. 0.5 mm; stigma<br />
slightly enlarged. Capsule 4- or 5-carpelled, 3–4 mm in diam.<br />
when mature, with protruding oil glands when young, 2-seeded.<br />
Fl. May, fr. Sep.<br />
<strong>RUTACEAE</strong><br />
Grassy areas, riversides; ca. 700 m. Xinjiang [Afghanistan,<br />
Kazakhstan, Kyrgyzstan, Mongolia, Pakistan, Tajikistan, Turkmenistan,<br />
Uzbekistan; SW Asia].<br />
C. C. Huang (Fl. Reipubl. Popularis Sin. 43(2): 87. 1997) mistakenly<br />
called this species Haplophyllum perforatum (M. Bieberstein)<br />
Karelin & Kirilov. The H. perforatum Karelin & Kirilov (1841) is based<br />
a different type than Ruta perforata M. Bieberstein (1800), and a combination<br />
of the R. perforata in Haplophyllum is a later homonym. The<br />
oldest specific epithet available for this species is R. acutifolia Candolle<br />
(1824).<br />
3. Haplophyllum tragacanthoides Diels, Notizbl. Bot. Gart.<br />
Berlin-Dahlem 9: 1028. 1926.<br />
针枝芸香 zhen zhi yun xiang<br />
Herbs, perennial, 10–15 cm tall. Branches dichotomous<br />
from stem base. Leaves sessile; leaf blade shortly linear to<br />
narrowly elliptic, 3–9 × 1–3 mm, thickly papery, grayish green,<br />
with scattered oil glands, margin denticulate. Flowers terminal,<br />
solitary. Sepals ovate, to 1 mm, basally connate, margin ciliate.<br />
Petals yellow, oblong, 7–8 × ca. 3 mm, with scattered semipellucid<br />
oil glands, margin irregular. Staminal filaments flattened in<br />
± their basal half, with trichomes. Ovary 4- or 5-carpelled; style<br />
ca. 2.5 mm; stigma slightly enlarged. Capsule 4- or 5-carpelled,<br />
with oil glands; carpels ca. 5 mm in diam., 1-seeded. Seeds<br />
reniform, 2–2.5 × ca. 1.5 mm; seed coat shrunken. Fl. May–Jun,<br />
fr. Jul–Aug.<br />
● Dry hill slopes; ca. 1500 m. Gansu, Nei Mongol, Ningxia.<br />
Townsend (Hooker’s Icon. Pl. 40: 35, t. 3902. 1986) placed Haplophyllum<br />
tragacanthoides in synonymy of H. dauricum (Linnaeus) G.<br />
Don.<br />
7. PSILOPEGANUM Hemsley, J. Linn. Soc., Bot. 23: 103. 1886.<br />
裸芸香属 luo yun xiang shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Herbs, perennial. Leaves alternate, digitately 3-foliolate (occasional leaves simple). Flowers bisexual, actinomorphic, axillary,<br />
solitary or in few-flowered racemes. Sepals 4, basally connate. Petals 4 or 5, imbricate in bud, margin entire. Stamens 8 or 10, distinct.<br />
Disk columnar. Gynoecium 2(or 3)-carpelled; ovaries connate in ± their basal 2/3, otherwise contiguous to divergent; ovules several<br />
per locule; style lateral, of 2 or rarely 3 coherent stylar elements; stigma capitellate. Fruit a loculicidal capsule, with carpels connate as<br />
in ovary; endocarp thinly cartilaginous, adnate to mesocarp in dehisced fruit. Seeds reniform; seed coat leathery, tuberculate;<br />
endosperm copious; embryo curved; cotyledons elliptic, flattened; hypocotyl superior.<br />
● One species: China.<br />
1. Psilopeganum sinense Hemsley, J. Linn. Soc., Bot. 23: 103.<br />
1886.<br />
裸芸香 luo yun xiang<br />
Plants 30–80 cm tall. Leaves 2.5–4.5 cm, glabrous, with<br />
citrus odor; petiole 0.8–1.5 cm; leaflet blades ovate-elliptic to<br />
elliptic-obovate, in lateral leaflets 4–10 × 2–6 mm, in terminal<br />
leaflet 1.5–2.8 × 0.6–1.2 cm. Sepals ca. 1 mm. Petals ovate-<br />
elliptic, 4–6 mm. Stamens slightly shorter than petals. Ovary<br />
usually obcordate; style to 2 mm. Capsule ca. 5 mm. Seeds ca.<br />
1.5 × 1 mm. Fl. and fr. May–Aug.<br />
● Hill slopes; ca. 800 m. Guizhou, Hubei, Sichuan.<br />
8. DICTAMNUS Linnaeus, Sp. Pl. 1: 388. 1753.<br />
白鲜属 bai xian shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Herbs, perennial. Leaves alternate, odd-pinnate. Inflorescences terminal. Flowers bisexual, zygomorphic. Sepals 5, basally
<strong>RUTACEAE</strong><br />
connate. Petals 5, 4 ascending and 1 descending, imbricate in bud. Stamens 10, distinct, declined. Disk thick, asymmetrically annular.<br />
Gynoecium 5-carpelled; ovaries basally connate, otherwise contiguous; ovules 3 per locule; style lateral, declined, of 5 basally<br />
coherent but apically connate stylar elements; stigma punctiform. Fruit of 5 basally connate follicles; endocarp cartilaginous, discharged<br />
elastically with seeds at dehiscence. Seeds black, subglobose, shiny; seed coat brittle, sclerenchymatous; endosperm copious;<br />
embryo straight; cotyledons broadly elliptic, flattened; hypocotyl partly included between cotyledons.<br />
One to five species: Asia, Europe; one species in China.<br />
1. Dictamnus dasycarpus Turczaninow, Bull. Soc. Imp.<br />
Naturalistes Moscou 15: 637. 1842.<br />
白鲜 bai xian<br />
Aquilegia fauriei H. Léveillé; Dictamnus albus Linnaeus<br />
subsp. dasycarpus (Turczaninow) L. Winter; D. albus var. dasycarpus<br />
(Turczaninow) T. N. Liou & Y. H. Chang.<br />
Plants 40–100 cm tall. Younger stems, leaves, and inflorescences<br />
pubescent or sparsely so; leaflet blades with scattered<br />
pellucid oil glands. Leaves 7–13-foliolate; rachis marginate to<br />
narrowly winged; leaflet blades ovate-elliptic, elliptic, or oblong,<br />
3–12 × 1–5 cm, lateral ones opposite and sessile but ter-<br />
minal one petiolulate, secondary veins ± inconspicuous, margin<br />
crenulate. Inflorescences, flowers, and follicles with opaque<br />
dark brown globose to ellipsoid sessile or stalked glands. Inflorescences<br />
compound racemose, to 30 cm. Pedicel 1–1.5 cm.<br />
Sepals 6–8 × 2–3 mm. Petals pinkish white to pink, with purplish<br />
stripes, oblanceolate, 2–2.5 × 0.5–0.8 cm. Stamens exserted.<br />
Fruit follicles 1–2 cm, usually with a stylar beak and apical<br />
abaxial beak. Fl. May, fr. Aug–Sep.<br />
Hill slopes, flat areas in thickets, grassy open forests. Anhui,<br />
Gansu, Hebei, Heilongjiang, Henan, Hubei, Jiangsu, Jiangxi, Jilin, Liaoning,<br />
Nei Mongol, Ningxia, Shaanxi, Shandong, Shanxi, Sichuan, Xinjiang<br />
[Korea, Mongolia, Russia (Far East)].<br />
9. TODDALIA Jussieu, Gen. Pl. 371. 1789, nom. cons.<br />
飞龙掌血属 fei long zhang xue shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Shrubs (usually sprawling) or woody climbers, dioecious, usually armed. Leaves alternate, digitately 3-foliolate (occasional<br />
leaves 1- or 2-foliolate). Inflorescences terminal and/or axillary, paniculate, racemose, or umbelliform. Sepals 4 or 5(or 6), connate at<br />
base or to ± half their length. Petals 4 or 5(or 6), valvate or narrowly imbricate in bud. Stamens 4 or 5(or 6), distinct, rudimentary in<br />
female flowers. Disk pulvinate. Gynoecium 4–7-loculed, syncarpous, rudimentary in male flowers; ovules 2 per locule; stigma sessile<br />
or nearly so. Fruit a 4–7-loculed drupaceous berry; exocarp fleshy; mesocarp undifferentiated; endocarp cartilaginous. Seeds brown to<br />
black, reniform, dull to lustrous; seed coat with thick inner layer of dense black sclerenchyma surrounded by outer layer of compact<br />
parenchymatous tissue; endosperm copious; embryo curved; cotyledons elliptic, flattened; hypocotyl superior.<br />
One species: Africa, E, S, and SE Asia, Madagascar, Mascarene Islands.<br />
1. Toddalia asiatica (Linnaeus) Lamarck, Tabl. Encycl. 2: 116.<br />
1797.<br />
飞龙掌血 fei long zhang xue<br />
Paullinia asiatica Linnaeus, Sp. Pl. 1: 365. 1753, typ.<br />
cons.; Aralia labordei H. Léveillé; Toddalia asiatica var. floribunda<br />
(Wallich) Kurz; T. asiatica var. gracilis Gamble; T.<br />
asiatica var. obtusifolia Gamble; T. floribunda Wallich; T.<br />
tonkinensis Guillaumin.<br />
Shrubs (usually sprawling) or woody climbers, usually<br />
armed. Petiole 1–4 cm; leaflet blades usually sessile or subsessile,<br />
elliptic or narrowly elliptic to obovate to oblanceolate, 3–10<br />
× 1–4 cm, base narrowly cuneate to attenuate, apex acuminate or<br />
rarely acute to obtuse or rounded. Inflorescences to 17 cm.<br />
Sepals 0.3–0.5 mm. Petals cream-white, ovate to elliptic, 1–3.5<br />
mm. Stamens in male flowers 3–4 mm, in female flowers<br />
ligulate and 0.2–0.8 mm. Disk 0.2–0.5 mm. Gynoecium in<br />
female flowers ovoid to ellipsoid and 1.5–2.5 mm, in male<br />
flowers subcylindric and 1–2 mm. Fruit 5–10 mm in diam. Seeds<br />
5–6.5 mm. Fl. year-round but mostly in spring and summer, fr.<br />
autumn and winter.<br />
Secondary forests, thickets; near sea level to 2000 m. Fujian,<br />
Gansu, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hubei, Hunan,<br />
Shaanxi, Sichuan, Taiwan, Xizang, Yunnan [Bangladesh, Bhutan, India,<br />
Indonesia, Japan (Ryukyu Islands), Laos, Malaysia, Myanmar, Nepal,<br />
Philippines, Sri Lanka, Thailand, Vietnam; Africa, Madagascar].<br />
10. PHELLODENDRON Ruprecht, Bull. Cl. Phys.-Math. Acad. Imp. Sci.<br />
Saint-Pétersbourg 15: 353. 1857.<br />
黄檗属 huang bo shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Trees, deciduous, dioecious. Bark corky, fissured and gray or grayish brown at maturity; inner bark (phloem) yellow. Branchlets<br />
dark purplish. Leaves opposite, odd-pinnate; base of petiole excavated, concealing axillary bud; leaflet blades with oil glands restricted<br />
to margin, margin subentire to minutely crenulate or serrulate. Inflorescences terminal, thyrsiform. Sepals 5(–8), connate at base. Petals<br />
75
76<br />
<strong>RUTACEAE</strong><br />
5(–8), narrowly imbricate in bud. Stamens 5(–7), distinct. Disk columnar. Male flowers: stamens to 1.5 × as long as petals; gynoecium<br />
rudimentary, of 5(or 6) fingerlike carpels, basally connate, apically ± divergent. Female flowers: stamens rudimentary, ligulate, much<br />
shorter than petals; gynoecium 5(–10)-loculed, syncarpous; ovules 1 per locule; stigma peltate. Fruit a drupaceous berry, black or<br />
purplish black, 5(–10)-loculed; exocarp fleshy; mesocarp undifferentiated; endocarp thinly cartilaginous. Seeds brown or black,<br />
asymmetrically ellipsoid, dull, inconspicuously rugulose; seed coat with inner layer of dense black sclerenchyma and outer layer of<br />
compact parenchymatous tissue; endosperm ± scant; embryo straight; cotyledons elliptic, flattened; hypocotyl superior.<br />
Two to four species: E and SE Asia; two species (one endemic) in China.<br />
1a. Inflorescences and infructescences ± lax, rachis, branches, and pedicels slender; leaflet blades papery to thinly<br />
papery ........................................................................................................................................................................... 1. P. amurense<br />
1b. Inflorescences and infructescences ± compact, rachis, branches, and pedicels robust; leaflet blades papery ............. 2. P. chinense<br />
1. Phellodendron amurense Ruprecht, Bull. Cl. Phys.-Math.<br />
Acad. Imp. Sci. Saint-Pétersbourg 15: 353. 1857.<br />
黄檗 huang bo<br />
Trees 10–30 m tall, d.b.h. to 1 m. Leaves 7–13-foliolate;<br />
rachis glabrous to pubescent; leaflet blades ovate to ovate-<br />
lanceolate, 6–12 × 2.5–4.5 cm, papery to thinly papery, apex<br />
acuminate. Inflorescences and infructescences ± lax, rachis,<br />
branches, and pedicels slender. Fruit globose, ca. 1 cm in diam.<br />
Seeds ca. 6 × 3 mm. Fl. May–Jun, fr. Sep–Oct.<br />
Montane forests and thickets, river valleys. Anhui, Hebei, Heilongjiang,<br />
Henan, Jilin, Liaoning, Nei Mongol, Shandong, Shanxi, Taiwan<br />
[Japan, Korea, Russia (Far East)].<br />
This species is widely cultivated.<br />
Phellodendron amurense var. wilsonii was accepted by C. E.<br />
Chang (Fl. Taiwan, ed. 2, 3: 527. 1993).<br />
2. Phellodendron chinense C. K. Schneider, Ill. Handb.<br />
Laubholzk. 2: 126. 1907.<br />
川黄檗 chuan huang bo<br />
Trees to 15 m tall. Leaves 7–15-foliolate; rachis glabrous,<br />
thinly pubescent, or rust-colored tomentose; leaflet blades ovate-<br />
elliptic to oblong-lanceolate, 8–15 × 3.5–6 cm, papery, base<br />
cuneate to attenuate and oblique, apex mucronate to acuminate.<br />
Inflorescences and infructescence ± compact, rachis, branches,<br />
and pedicels robust. Fruit subglobose to ellipsoid, 1–1.5 cm in<br />
diam. Seeds 6–7 × 3–5 mm. Fl. May–Jun, fr. Sep–Nov.<br />
● Mixed broad-leaved forests, open to dense forests; 800–1500<br />
(–3000) m. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Henan,<br />
Hubei, Hunan, Jiangsu, Shaanxi, Sichuan, Yunnan, Zhejiang.<br />
1a. Rachis of leaves rust-colored tomentose<br />
.................................................................. 2a. var. chinense<br />
1b. Rachis of leaves glabrous or thinly<br />
pubescent ....................................... 2b. var. glabriusculum<br />
2a. Phellodendron chinense var. chinense<br />
川黄檗(原变种) chuan huang bo (yuan bian zhong)<br />
Phellodendron fargesii Dode; P. macrophyllum Dode, p.p.<br />
as to R. P. Farges 1284 p.p. altitude 1400 m (see also synonymy<br />
of Tetradium daniellii).<br />
Rachis of leaves rust-colored tomentose.<br />
● Mixed broad-leaved forests; above 900 m. Anhui, Henan, Hubei,<br />
Hunan, Sichuan, Yunnan.<br />
2b. Phellodendron chinense var. glabriusculum C. K.<br />
Schneider, Ill. Handb. Laubholzk. 2: 126. 1907.<br />
秃叶黄檗 tu ye huang bo<br />
Phellodendron chinense var. falcatum C. C. Huang; P.<br />
chinense var. omeiense C. C. Huang; P. chinense var. yunnanense<br />
C. C. Huang.<br />
Rachis of leaves glabrous or thinly pubescent.<br />
● Open to dense forests; 800–1500(–3000) m. Fujian, Gansu,<br />
Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Shaanxi, Sichuan,<br />
Yunnan, Zhejiang.<br />
11. ACRONYCHIA J. R. Forster & G. Forster, Char. Gen. Pl. 27. 1775, nom. cons.<br />
山油柑属 shan you gan shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Shrubs or trees, evergreen. Leaves opposite, 1-foliolate [or digitately 3-foliolate]. Inflorescences axillary or basal to leaves,<br />
cymulose to thyrsiform [or reduced to solitary flowers]. Flowers bisexual. Sepals 4, distinct or basally connate. Petals 4, valvate in bud.<br />
Stamens 8, distinct, ones opposite sepals nearly as long as petals; filaments with indumentum toward base [or rarely glabrous],<br />
gradually tapering from ± broad base to subulate apex, becoming reflexed; anthers obtuse or obtusely mucronulate. Disk pulvinate.<br />
Gynoecium 4-loculed, ± completely syncarpous [or grading to subapocarpous]; ovules 2 per locule; stigma punctiform or capitellate.<br />
Fruit a ± completely syncarpous 4-loculed drupaceous berry [or grading to subapocarpous with 4 basally connate drupaceous berries];<br />
exocarp ± fleshy or dry; mesocarp, if evident, spongy-crustaceous or ± woody; endocarp cartilaginous. Seeds ellipsoid to pyriform,<br />
dull to ± shiny; seed coat with thick [to thin] inner layer of dense black sclerenchyma surrounded by outer layer of compact<br />
parenchymatous tissue; endosperm copious; embryo straight or nearly so; cotyledons ovate to elliptic, flattened; hypocotyl superior.<br />
About 48 species: S and SE Asia, Australia, SW Pacific islands; one species in China.
1. Acronychia pedunculata (Linnaeus) Miquel, Fl. Ned. Ind.,<br />
Eerste Bijv. 532. 1861.<br />
山油柑 shan you gan<br />
Jambolifera pedunculata Linnaeus, Sp. Pl. 1: 349. 1753;<br />
Acronychia apiculata Miquel; A. arborea Blume; A. barberi<br />
Gamble; A. elliptica Merrill & L. M. Perry; A. laurifolia Blume;<br />
Clausena simplicifolia Dalzell; Cyminosma pedunculata (Linnaeus)<br />
Candolle; Gela lanceolata Loureiro; J. arborea (Blume)<br />
Zollinger & Moritzi; J. rezinosa Loureiro; Laxmannia ankenda<br />
(Gaertner) Raeuschel; Melicope conferta Blanco; Selas lanceolatum<br />
(Loureiro) Sprengel; Ximenia lanceolata (Loureiro) Candolle.<br />
Shrubs or small to large trees, to 28 m tall. Petiole glabrous<br />
to finely pubescent, 0.5–5 cm; leaflet blades usually elliptic to<br />
elliptic-oblong but grading to obovate, oblanceolate, or nearly<br />
oblong, 3.5–24.5 × 2–8.5 cm, base cuneate or sometimes<br />
rounded or attenuate, apex obtusely acuminate with an acumen<br />
<strong>RUTACEAE</strong><br />
to 2 cm or sometimes obtuse or rounded. Inflorescences 2–25<br />
cm, few to many flowered. Pedicel 2–12 mm. Sepals 0.6–1.5<br />
mm. Petals 4–12 mm. Ovary completely pubescent or rarely<br />
pubescent only at apex, with or without apical septicidal fissures;<br />
style pubescent at base, otherwise glabrous. Fruit subglobose or<br />
sometimes grading to ellipsoid, pyriform, or broadly conic,<br />
0.5–1.5 cm in diam., with or without apical septicidal fissures,<br />
usually ± sparsely pubescent with ring of dense appressed trichomes<br />
at base but grading to tomentose or glabrous, apex often<br />
apiculate; outer part of pericarp (exocarp and mesocarp) drying<br />
0.5–3 mm thick; mesocarp woody or subwoody. Seeds reddish<br />
black to black, 3–7 mm. Fl. Apr–Aug, fr. Aug–Dec.<br />
Secondary forests, woods or thickets on lower hills; near sea level<br />
to 900 m. Fujian, Guangdong, Guangxi, Hainan, Taiwan, Yunnan<br />
[Bangladesh, Bhutan, Cambodia, India, Indonesia, Laos, Malaysia,<br />
Myanmar, New Guinea, Philippines, Sri Lanka, Thailand, Vietnam].<br />
Acronychia pedunculata is the dominant in some plant communities.<br />
12. MACLURODENDRON T. G. Hartley, Gard. Bull. Singapore 35: 4. 1982.<br />
贡甲属 gong jia shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Trees, evergreen, dioecious. Leaves opposite, 1-foliolate. Inflorescences axillary, thyrsiform or racemose. Sepals 4, basally<br />
connate. Petals 4, narrowly imbricate or valvate in bud. Stamens 8, distinct, ones opposite sepals nearly as long as petals in both male<br />
and female flowers; filaments sublinear, ± incurved, glabrous; anthers apiculate, lacking pollen in female flowers. Gynoecium<br />
4-loculed, rudimentary and minute in male flowers; ovary syncarpous; ovules 2 per locule; style of 4 coherent stylar elements; stigma<br />
capitate. Fruit a 4-loculed drupaceous berry; exocarp fleshy; mesocarp undifferentiated; endocarp thinly cartilaginous. Seeds ovoid to<br />
reniform; seed coat with thick inner layer of dense black sclerenchyma and spongy outer layer [rarely lacking] bounded externally by a<br />
shiny black pellicle; endosperm copious; embryo straight or slightly bent; cotyledons ovate to elliptic, flattened; hypocotyl superior.<br />
Six species: SE Asia; one species in China.<br />
1. Maclurodendron oligophlebium (Merrill) T. G. Hartley,<br />
Gard. Bull. Singapore 35: 13. 1982.<br />
贡甲 gong jia<br />
Acronychia oligophlebia Merrill, Philipp. J. Sci. 23: 246.<br />
1923.<br />
Trees to 13(–25) m tall. Petiole 0.8–2.5 cm, puberulent to<br />
finely pubescent especially adaxially, glabrescent; leaflet blades<br />
obovate, oblanceolate, or sometimes elliptic, 6–21.5 × 2.5–8.2<br />
cm, base cuneate to attenuate, apex acuminate with a 5–10 mm<br />
acumen but sometimes obtuse or rounded. Inflorescences 3.5–10<br />
cm. Pedicel 1.5–5 mm. Sepals 0.6–0.7 mm. Petals 2.5–3 mm.<br />
Gynoecium glabrous. Fruit globose or subglobose, 6–10 mm in<br />
diam., apex often apiculate. Seeds 4.5–5.5 mm; seed coat with<br />
spongy outer tissue bounded externally by a shiny black pellicle.<br />
Fl. Apr–Aug, fr. Aug–Dec.<br />
Primary and secondary forests; 200–1400 m. Guangdong, Hainan<br />
[N Vietnam].<br />
13. SKIMMIA Thunberg, Nov. Gen. Pl. 3: 57. 1783, nom. cons.<br />
茵芋属 yin yu shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Shrubs or trees, evergreen, usually dioecious or monoclinous, unarmed. Leaves alternate, simple. Inflorescences terminal,<br />
thyrsiform. Sepals (3 or)4 or 5(–7), distinct or basally connate. Petals (3 or)4 or 5(–7), imbricate in bud. Stamens (3 or)4 or 5(–7),<br />
distinct, rudimentary in female flowers. Disk annular or pulvinate. Gynoecium 2–5-loculed, syncarpous, rudimentary in male flowers;<br />
ovules 1(or ?2) per locule; style short or ± as long as ovary. Fruit a fleshy drupaceous berry, with 1–5 1-seeded leathery pyrenes. Seeds<br />
ovoid to ellipsoid; seed coat membranous; endosperm copious; embryo straight; cotyledons oblong to suborbicular, flattened;<br />
hypocotyl superior.<br />
Five to six species: E, S, and SE Asia; five species (one endemic) in China.<br />
1a. Leaf blade midvein puberulent.<br />
77
78<br />
<strong>RUTACEAE</strong><br />
2a. Fruit red ................................................................................................................................................................. 1. S. reevesiana<br />
2b. Fruit bluish black .............................................................................................................................................. 2. S. melanocarpa<br />
1b. Leaf blade midvein glabrous.<br />
3a. Leaf blade secondary veins 12–20 on each side of midvein; rudimentary gynoecium in male flowers entire<br />
or nearly so; petals reflexed ................................................................................................................................. 5. S. multinervia<br />
3b. Leaf blade secondary veins fewer than 10 on each side of midvein; rudimentary gynoecium in male flowers<br />
3- or 4-lobed; petals erect to spreading.<br />
4a. Shrubs to 2 m tall; fruit red ................................................................................................................................ 3. S. laureola<br />
4b. Trees to 12 m tall; fruit bluish black ........................................................................................................... 4. S. arborescens<br />
1. Skimmia reevesiana (Fortune) Fortune, J. Tea Countr. China<br />
329. 1852.<br />
茵芋 yin yu<br />
Ilex reevesiana Fortune, Gard. Chron. 1851: 5. 1851;<br />
Skimmia arisanensis Hayata; S. distinctevenulosa Hayata; S.<br />
fortunei Masters; S. hainanensis C. C. Huang; S. japonica<br />
Thunberg var. distinctevenulosa (Hayata) C. E. Chang; S.<br />
japonica subsp. reevesiana (Fortune) N. P. Taylor & Airy Shaw;<br />
S. japonica var. reevesiana (Fortune) N. P. Taylor; S. orthoclada<br />
Hayata.<br />
Shrubs 1–2 m tall. Branches with hollow pith; bark pale<br />
grayish green, smooth, cracked when dry. Leaves clustered at<br />
branch apex, with a citrus-leaf odor; petiole 5–10 mm; leaf blade<br />
elliptic, lanceolate, ovate, or oblanceolate, 5–12 × 1.5–4 cm,<br />
leathery, midvein adaxially puberulent, base cuneate, apex mucronate<br />
to obtuse or acuminate. Inflorescences puberulent, with<br />
condensed flowers. Flowers male, female, or bisexual, (3 or)4or<br />
5-merous, fragrant. Sepals rounded, 1–1.5 mm, margin ciliate.<br />
Petals yellowish white, 3–5 mm. Stamens (3 or)4 or 5. Male<br />
flowers: rudimentary ovary compressed globose, entire or shallowly<br />
2–4-lobed, apex mucronate. Female flowers: ovary subglobose;<br />
style elongated; stigma capitate. Fruit red, globose to<br />
ellipsoid-obovoid, 0.8–1.5 cm, 2–4-seeded. Seeds compressed<br />
ovoid, 5–9 × 4–6 mm. Fl. Mar–May, fr. Sep–Nov. 2n = 60*.<br />
Montane moss forests; 1200–2600 m. S Anhui, Fujian, Guangdong,<br />
Guangxi, Guizhou, Hainan, Henan, Hubei, Hunan, Jiangxi, Sichuan,<br />
Taiwan, E Yunnan, Zhejiang [Myanmar, Philippines, S Vietnam].<br />
Taylor (Kew Mag. 4: 182, 183. 1987) treated Skimmia reevesiana<br />
as S. japonica subsp. reevesiana and placed S. arisanensis, S. distinctevenulosa,<br />
S. hainanensis, and S. orthoclada in synonymy of S. japonica<br />
var. reevesiana.<br />
2. Skimmia melanocarpa Rehder & E. H. Wilson in Sargent,<br />
Pl. Wilson. 2: 138. 1914.<br />
黑果茵芋 hei guo yin yu<br />
Shrubs 1–2 m tall, monoecious, dioecious, or monoclinous.<br />
Branches with hollow pith; bark pale grayish green, smooth,<br />
cracked when dry. Petiole 5–10 mm; leaf blade elliptic to elliptic-lanceolate,<br />
3–7 × 1.5–2.5 cm, midvein adaxially pubescent,<br />
apex acuminate to acute. Inflorescences to 4 cm, with condensed<br />
flowers; rachis puberulent; bracts ca. 1 mm. Flowers subsessile.<br />
Sepals broadly ovate, 1–1.5 mm, margin ciliate. Petals 5, yellowish<br />
white, oblanceolate to oblong, 3–4 mm, subequal,<br />
reflexed in male flowers. Male flowers: stamens as long as or<br />
slightly longer than petals. Female and bisexual flowers: stamens<br />
shorter than petals; ovary subglobose; style cylindric. Fruit<br />
bluish black, subglobose, ca. 8 mm in diam., (4 or)5-loculed,<br />
apex with (4 or)5 stylar scars. Fl. Mar–May, fr. Sep–Nov.<br />
● Dense or open forests; 2000–3000 m. S Gansu, W Hubei, S<br />
Shaanxi, Sichuan, SE Xizang, Yunnan.<br />
Taylor (Kew Mag. 4: 189. 1987) placed Skimmia melanocarpa in<br />
synonymy of S. laureola subsp. laureola.<br />
3. Skimmia laureola (Candolle) Siebold & Zuccarini ex<br />
Walpers, Repert. Bot. Syst. 5: 405. 1845–1846.<br />
月桂茵芋 yue gui yin yu<br />
Limonia laureola Candolle, Prodr. 1: 536. 1824.<br />
Shrubs to 1.3 m tall. Branches grayish green, dichotomous<br />
or nearly whorled. Leaves nearly opposite or whorled, clustered<br />
near apex of branches, spreading, with a citrus-leaf odor; leaf<br />
blade oblong-lanceolate, (4–)7–10(–12) × 2–3 cm, adaxially<br />
dark green, shiny, and with translucent oil glands, midvein<br />
slender, secondary veins hardly distinguishable, base attenuate,<br />
margin entire, apex mucronate. Inflorescences 5–8 cm; rachis<br />
stout, angulate. Pedicel puberulent; bracteoles opposite near<br />
middle of pedicel, caducous. Sepals ovate, base pubescent, margin<br />
ciliate. Petals 5, yellowish, oblong, ca. 3 × as long as sepals,<br />
apex obtuse. Stamens 5, erect. Ovary ovoid, 2- or 3-loculed,<br />
glabrous, with oil glands; ovules 1(or ?2) per locule; style short;<br />
stigma small. Fruit ovoid, 8–10 mm in diam. Fl. Apr, fr. autumn.<br />
2n = 30*, 60.<br />
Evergreen forests; below 2800 m. S Xizang (Yadong) [Bhutan, NE<br />
India, Myanmar, Nepal].<br />
4. Skimmia arborescens T. Anderson ex Gamble, J. Linn. Soc.,<br />
Bot. 43: 491. 1916.<br />
乔木茵芋 qiao mu yin yu<br />
Skimmia euphlebia Merrill; S. japonica Thunberg var. euphlebia<br />
(Merrill) N. P. Taylor; S. japonica var. kwangsiensis (C.<br />
C. Huang) N. P. Taylor; S. kwangsiensis C. C. Huang.<br />
Trees to 8 m tall, d.b.h. to 20 cm. Branches with small but<br />
prominent pith. Petiole 1–2 cm; leaf blade elliptic, oblong, or<br />
obovate-elliptic, 5–18 × 2–6 cm, papery, glabrous, midvein<br />
adaxially prominent, secondary veins 7–10 on each side of<br />
midvein. Inflorescences 2–5 cm; rachis puberulent or glabrous;<br />
bracts broadly ovate, 1–1.5 mm. Sepals ovate, margin ciliate.<br />
Petals 5, yellowish, obovate to ovate-oblong, 4–5 mm. Male<br />
flowers: stamens longer than petals; filaments filiform; rudimentary<br />
gynoecium barlike, 3–4 mm, apex 3- or 4-lobed. Female<br />
flowers: rudimentary stamens shorter than petals; ovary<br />
globose; style ca. 1 mm; stigma capitate. Fruit bluish black,<br />
globose, 6–8 mm in diam., 1–3-seeded. Fl. Apr–Jun, fr. Jul–Sep.<br />
Shady moist montane areas; 1000–2800 m. Guangdong, Guangxi,<br />
Guizhou, Sichuan, E Xizang, Yunnan [Bhutan, NE India, Laos, Myanmar,<br />
Nepal, N Thailand, N Vietnam].
Taylor (Kew Mag. 4: 183–185. 1987) treated Skimmia arborescens<br />
as S. arborescens subsp. arborescens, S. euphlebia as S. japonica var.<br />
euphlebia, and S. kwangsiensis as S. japonica var. kwangsiensis.<br />
5. Skimmia multinervia C. C. Huang, Acta Phytotax. Sin. 7:<br />
348. 1958.<br />
多脉茵芋 duo mai yin yu<br />
Skimmia laureola (Candolle) Siebold & Zuccarini ex<br />
Walpers subsp. multinervia (C. C. Huang) N. P. Taylor & Airy<br />
Shaw.<br />
Trees to 13 m tall. Branches dark grayish, with scattered<br />
lenticels. Petiole 1–2 cm, stout; leaf blade oblanceolate to rarely<br />
narrowly oblong, 10–18 × 3–5 cm, leathery, midvein adaxially<br />
slightly prominent, secondary veins 12–20 on each side of mid-<br />
<strong>RUTACEAE</strong><br />
vein, margin slightly revolute. Inflorescences 2–6 cm; rachis<br />
stout when young, puberulent, elongated in fruit; bracts ovate,<br />
1–2 mm, margin ciliate. Pedicel stout. Sepals ovate, ca. 2 mm,<br />
margin ciliate. Petals 5, yellowish white, obovate-oblong to<br />
oblong, 4–5 mm, reflexed at anthesis. Stamens 5. Male flowers:<br />
stamens longer than petals; rudimentary gynoecium barlike, ca.<br />
1.5 mm, apex entire or shallowly lobed. Female and bisexual<br />
flowers: rudimentary stamens as long as petals; ovary globose,<br />
5-loculed; style ca. 1.5 mm; stigma capitate. Fruit bluish black,<br />
subglobose to slightly compressed, 6–8 mm in diam., 4- or<br />
5-seeded. Fl. Apr–Jun, fr. Jul–Sep.<br />
Montane forests; ca. 2000 m or above. SW Sichuan, NW Yunnan<br />
[Bhutan, NE India, Myanmar, Nepal, N Vietnam].<br />
Taylor (Kew Mag. 4: 189. 1987) treated Skimmia multinervia as S.<br />
laureola subsp. multinervia.<br />
14. MICROMELUM Blume, Bijdr. 137. 1825, nom. cons.<br />
小芸木属 xiao yun mu shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Shrubs or trees, unarmed. Leaves alternate, odd-pinnate [or rarely digitately 3-foliolate and/or 1-foliolate]. Inflorescences<br />
terminal or terminal and axillary, paniculate. Flowers bisexual, ellipsoid or broadly ellipsoid to obovoid to oblong in bud. Calyx<br />
cup-shaped, shallowly 5-lobed or -toothed. Petals 5, valvate in bud. Stamens 10, distinct, alternately unequal in length; filaments<br />
sublinear, ± straight. Disk annular or columnar. Gynoecium 3–5-loculed, syncarpous; radial walls of locules becoming curved after<br />
anthesis; ovules 2 per locule; style to 1.5 × as long as ovary, deciduous in fruit. Fruit a berry with neither pulp nor pulp vesicles;<br />
endocarp membranous. Seeds ellipsoid; seed coat membranous; endosperm lacking; embryo straight; cotyledons broadly elliptic, thin,<br />
convolute and/or folded; hypocotyl superior.<br />
About ten species: S and SE Asia, Australia, SW Pacific islands; two species in China.<br />
1a. Flower buds ellipsoid or broadly ellipsoid; petals 3–4 mm, outside glabrous or pubescent; margin of leaflet blades<br />
serrate or repand ............................................................................................................................................................ 1. M. falcatum<br />
1b. Flower buds oblong; petals 5–10 mm, outside densely pubescent; margin of leaflet blades crenate, repand, or<br />
entire ...................................................................................................................................................................... 2. M. integerrimum<br />
1. Micromelum falcatum (Loureiro) Tanaka, Bull. Mus. Natl.<br />
Hist. Nat., sér. 2, 2: 257. 1930.<br />
大管 da guan<br />
Aulacia falcata Loureiro, Fl. Cochinch. 1: 273. 1790.<br />
Trees 1–3 m tall. Branchlets, petioles, and inflorescence<br />
rachises hirsute. Leaves 5–11-foliolate; petiolules 3–7 mm;<br />
leaflet blades alternate, ovate to lanceolate, inequilateral, 4–9 ×<br />
1.2–3.5(–4.5) cm, margin serrate or repand, apex acuminate to<br />
caudate. Inflorescences terminal. Flowers ellipsoid or broadly so<br />
in bud. Calyx lobes broadly triangular, less than 1 mm. Petals<br />
white, oblong, 3–4 mm, outside glabrous or pubescent. Longer<br />
stamens subequal to petal length, shorter ones subequal to<br />
gynoecium length. Style cylindric, longer than ovary; stigma<br />
capitate. Fruit ellipsoid to obovoid, 8–10 × 7–9 mm, 1- or<br />
2-seeded. Fl. Jan–Apr, fr. Jun–Aug.<br />
Mountains; below 1200 m. SW Guangdong, Guangxi, Hainan, S<br />
Yunnan [Cambodia, Laos, Myanmar, Thailand, Vietnam].<br />
2. Micromelum integerrimum (Buchanan-Hamilton ex Candolle)<br />
Wight & Arnott ex M. Roemer, Fam. Nat. Syn. Monogr.<br />
1: 47. 1846.<br />
小芸木 xiao yun mu<br />
Trees 6–8 m tall. Bark gray, smooth. Leaves 7–15-foliolate<br />
or 5–11-foliolate; petiolules 2–5 mm; leaflet blades alternate to<br />
subopposite, elliptic, lanceolate, or ovate, inequilateral, both<br />
surfaces dark green, margin entire, apex acuminate. Flower buds<br />
pale green, oblong. Calyx lobes ca. 1 mm. Petals pale yellow,<br />
5–10 mm, outside densely pubescent. Disk columnar. Stigma<br />
capitate. Fruit ellipsoid to obovoid, 1–1.5 × 0.6–1.2 cm, 1- or<br />
2-seeded. Seed coat membranous. Fl. Feb–Apr, fr. Jul–Sep. 2n =<br />
18.<br />
Moist montane forests, valley forests, maritime thickets in sandy<br />
soil; near sea level to 2000 m. SW Guangdong, Guangxi, S and SW<br />
Guizhou, Hainan, SE Xizang, S Yunnan [Bhutan, Cambodia, India,<br />
Laos, Myanmar, Nepal, Philippines, Thailand, Vietnam].<br />
1a. Young parts rust-colored pubescent;<br />
longest leaflet blades to 20 cm ......... 2a. var. integerrimum<br />
1b. Young parts rust-colored hispid;<br />
longest leaflet blades to 24 cm .......... 2b. var. mollissimum<br />
2a. Micromelum integerrimum var. integerrimum<br />
小芸木(原变种) xiao yun mu (yuan bian zhong)<br />
Bergera integerrima Buchanan-Hamilton ex Candolle,<br />
Prodr. 1: 537. 1824.<br />
79
80<br />
Trees to 8 m tall. Young parts rust-colored pubescent.<br />
Leaves 7–15-foliolate; leaflet blades basally on rachis ca. 4 cm<br />
and apically to 20 × 8 cm. Fruit 1–1.5 × 0.7–1.2 cm.<br />
Moist montane forests, maritime thickets in sandy soil; near sea<br />
level to 2000 m. SW Guangdong, Guangxi, S and SW Guizhou, Hainan,<br />
SE Xizang, S Yunnan [Bhutan, Cambodia, India, Laos, Myanmar,<br />
Nepal, Thailand, Vietnam].<br />
2b. Micromelum integerrimum var. mollissimum Tanaka,<br />
Bull. Mus. Natl. Hist. Nat., sér. 2, 2: 157. 1930.<br />
<strong>RUTACEAE</strong><br />
毛叶小芸木 mao ye xiao yun mu<br />
Trees 6–8 m tall. Young parts rust-colored hispid. Leaves<br />
5–11-foliolate; leaflet blades 10–24 × 4–8 cm. Young fruit<br />
ellipsoid, ca. 1 × 0.6–0.7 cm, pubescent, glabrescent when ripe,<br />
vermilion. Fl. Feb–Apr, fr. Jul–Sep.<br />
Valley forests; 100–600 m. SE Guangxi, S Yunnan [Cambodia,<br />
Laos, Philippines, Vietnam].<br />
15. GLYCOSMIS Corrêa, Ann. Mus. Natl. Hist. Nat. 6: 384. 1805, nom. cons.<br />
山小橘属 shan xiao ju shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Shrubs or trees, unarmed, with rust-colored villosulous indumentum (sometimes becoming bleached) on terminal and axillary<br />
buds and usually on young inflorescences. Leaves alternate [rarely opposite], odd-pinnate, 1-foliolate, or simple. Inflorescences<br />
terminal and/or axillary, paniculate, compoundly racemose, or reduced to 1 or a few flowers. Flowers bisexual, globose to ellipsoid in<br />
bud. Sepals 4 or 5, basally connate. Petals 4 or 5, imbricate in bud. Stamens 8 or 10, distinct, alternately ± unequal in length; filaments<br />
± straight. Disk annular, pulvinate, columnar, conic, or bell-shaped. Gynoecium 2–5-loculed, syncarpous; radial walls of locules<br />
straight; ovules 1(or 2) per locule; style to nearly as long as ovary, persistent in fruit. Fruit a berry, with mucilaginous pulp or dry,<br />
without pulp vesicles; endocarp membranous. Seeds with membranous seed coat; endosperm lacking; embryo straight; cotyledons<br />
elliptic, plano-convex, neither convolute nor folded; hypocotyl partly included between cotyledons.<br />
About 50 species: E, S, and SE Asia, Australia; 11 species (two endemic) in China.<br />
1a. Leaves, or most of them, simple or 1-foliolate.<br />
2a. Leaves, or most of them, simple .................................................................................................................. 1. G. cochinchinensis<br />
2b. Leaves, or most of them, 1-foliolate.<br />
3a. Leaflet blades lustrous when dry; petiole (0.6–)1.5–3 cm .............................................................................. 2. G. montana<br />
3b. Leaflet blades not lustrous when dry; petiole 0.2–0.5(–1.6) cm.<br />
4a. Inflorescences less than 1 cm; anther connective with an apical oil gland and 2 or 3 abaxial oil<br />
glands ............................................................................................................................................ 3. G. pseudoracemosa<br />
4b. Inflorescences 2–5 cm; anther connective with only an apical oil gland ................................................ 4. G. longifolia<br />
1b. Leaves, or most of them, 2–7-foliolate.<br />
5a. Margin of leaflet blades serrate or dentate; inflorescences often longer than 10 cm.<br />
6a. Staminal filaments widest in ± their apical half; ovary glabrous ............................................................... 5. G. pentaphylla<br />
6b. Staminal filaments widest in ± their basal half; ovary rust-colored villosulous ............................................ 6. G. esquirolii<br />
5b. Margin of leaflet blades entire or repand; inflorescences rarely longer than 10 cm.<br />
7a. Ovary terete; petals ca. 5 mm, not caducous ....................................................................................................... 7. G. lucida<br />
7b. Ovary globose or ovoid; petals less than 5 mm, caducous.<br />
8a. Leaves (3–)5–7-foliolate .......................................................................................................................... 8. G. oligantha<br />
8b. Leaves (1 or)2–5-foliolate.<br />
9a. Leaflet blades concolorous; petals ca. 4 mm .................................................................................. 10. G. parviflora<br />
9b. Leaflet blades discolorous; petals ca. 1.5 or ca. 3 mm.<br />
10a. Petals ca. 1.5 mm; leaflet blades 5–9 cm wide ................................................................... 11. G. xizangensis<br />
10b. Petals ca. 3 mm; leaflet blades 2–3 cm wide ................................................................................ 9. G. craibii<br />
1. Glycosmis cochinchinensis (Loureiro) Pierre in Engler &<br />
Prantl, Nat. Pflanzenfam. 3(4): 185. 1896.<br />
山橘树 shan ju shu<br />
Toluifera cochinchinensis Loureiro, Fl. Cochinch. 1: 262.<br />
1790; Glycosmis cochinchinensis var. contracta Craib; G.<br />
parkeri Narayanaswamy; G. touranensis Guillaumin.<br />
Shrubs or trees, 1–4 m tall. Leaves, or most of them,<br />
simple; petiole 3–10 mm; leaf blade suborbicular, broadly<br />
elliptic, ovate, oblong, or lanceolate, 4–26 × 2–8 cm, papery to<br />
leathery, glabrous, base rounded, obtuse, cuneate, or attenuate,<br />
margin entire, apex rounded, obtuse, mucronate, or acuminate.<br />
Inflorescences axillary or terminal, with flowers conglomerate,<br />
rarely solitary, or in panicle ca. 5 cm. Sepals ovate, less than 1<br />
mm. Petals white, ca. 3 mm. Stamens 10; filaments widest in ±<br />
their basal half. Disk obvious. Ovary globose; style short, narrow;<br />
stigma slightly expanded. Fruit reddish, 0.8–1.4 cm in<br />
diam. Fl. and fr. year-round.<br />
Below 1000 m. Guangdong, S Guangxi, Hainan, S Yunnan [Cambodia,<br />
Laos, Myanmar, Thailand, Vietnam].
2. Glycosmis montana Pierre, Fl. Forest. Cochinch. 3: t. 285b.<br />
1893.<br />
海南山小橘 hai nan shan xiao ju<br />
Glycosmis hainanensis C. C. Huang; G. tonkinensis Tanaka<br />
ex Guillaumin; Tetracronia cymosa Pierre.<br />
Shrubs or trees, 1–3 m tall. Leaves, or most of them,<br />
1-foliolate; petiole (0.6–)1.5–3 cm; petiolule 2–10 mm; leaflet<br />
blades obovate-oblong to oblanceolate, 5–15 × 1.5–6.5 cm,<br />
papery to leathery, glabrous, base often obtuse, margin entire,<br />
apex abruptly acuminate to elongately caudate. Inflorescences<br />
paniculate, 1–3 cm. Flowers small, globose in bud. Sepals<br />
broadly ovate, less than 1 mm. Petals white, ca. 3 mm, caducous.<br />
Stamens 10; filaments widest in ± their basal half. Disk obviously<br />
uplifted. Ovary broadly ovoid to subglobose; style stout;<br />
stigma slightly expanded. Fruit pink, globose, ca. 8 mm in diam.<br />
Fl. Oct–Mar, fr. Jul–Sep.<br />
Woods on hillsides, near rivers; 200–500 m. Guangdong, Hainan,<br />
SE Yunnan (Funing) [Vietnam].<br />
Stone (Proc. Acad. Nat. Sci. Philadelphia 137: 10. 1985) placed<br />
Glycosmis montana in synonymy of G. lanceolata (Blume) Sprengel ex<br />
Teijsmann & Binnendijk.<br />
3. Glycosmis pseudoracemosa (Guillaumin) Swingle, Notul.<br />
Syst. (Paris) 2: 162. 1912.<br />
华山小橘 hua shan xiao ju<br />
Atalantia pseudoracemosa Guillaumin, Notul. Syst. (Paris)<br />
1: 181. 1911; Glycosmis sinensis C. C. Huang.<br />
Shrubs or trees, 1.5–3 m tall. Leaves, or most of them,<br />
1-foliolate; petiole 2–5(–16) mm; petiolule 1–5 mm; leaflet<br />
blades oblong to lanceolate, 4–18 × 1.5–7 cm, papery, margin<br />
entire, apex acuminate. Inflorescences terminal or axillary, with<br />
flowers conglomerate or forming a short cyme, less than 1 cm.<br />
Sepals broadly ovate, less than 1 mm. Petals 5, white, ca. 4 mm.<br />
Stamens 10; filaments widest in ± their basal half. Ovary ovoid,<br />
becoming clavate; style extremely short. Fruit orange, broadly<br />
ellipsoid to subglobose, 1–1.2 × 0.8–1 cm. Fl. nearly year-round,<br />
fr. May–Dec.<br />
Hilly areas in woods and thickets; 400–1200 m. SW and W<br />
Guangxi, SE Yunnan (Malipo) [N Vietnam].<br />
4. Glycosmis longifolia (Oliver) Tanaka, Bull. Soc. Bot. France<br />
75: 709. 1928.<br />
长叶山小橘 chang ye shan xiao ju<br />
Glycosmis pentaphylla (Retzius) Candolle subvar. longifolia<br />
Oliver, J. Linn. Soc., Bot. 5(Suppl. 2): 37. 1861; G. cyanocarpa<br />
(Blume) Sprengel var. simplicifolia Kurz; G. cymosa<br />
(Kurz) J. Narayanaswami ex Tanaka var. simplicifolia (Kurz) J.<br />
Narayanaswami.<br />
Trees to 5 m tall. Bark brownish gray. Leaves, or most of<br />
them, 1-foliolate; petiole less than 5 mm; leaflet blade oblong,<br />
10–18 × 4–5 cm, papery, base cuneate, margin entire, apex<br />
acuminate. Inflorescences axillary or terminal, paniculate, 2–5<br />
cm. Sepals broadly ovate, less than 1 mm. Petals 3–4 mm,<br />
<strong>RUTACEAE</strong><br />
caducous. Stamens 10; filaments widest in ± their basal half.<br />
Ovary globose; style short; stigma slightly expanded. Fruit<br />
oblong to obovoid, 10–15 × 8–10 mm, 1-seeded. Fl. Apr–Aug.<br />
Valley woods; ca. 1300 m. SW and W Yunnan (Lushui, Zhenkang)<br />
[India, NE Myanmar, Sri Lanka].<br />
Stone (Proc. Acad. Nat. Sci. Philadelphia 137: 5. 1985) placed<br />
Glycosmis longifolia in synonymy of G. cyanocarpa (Blume) Sprengel.<br />
5. Glycosmis pentaphylla (Retzius) Candolle, Prodr. 1: 538.<br />
1924.<br />
山小橘 shan xiao ju<br />
Limonia pentaphylla Retzius, Observ. Bot. 5: 24. 1789;<br />
Glycosmis arborea (Roxburgh) Candolle; G. chylocarpa Wight<br />
& Arnott; G. quinquefolia Griffith; Limonia arborea Roxburgh;<br />
Myxospermum chylocarpum (Wight & Arnott) M. Roemer.<br />
Trees to 5 m tall. Leaves (3 or)5-foliolate; petiolules 2–10<br />
mm; leaflet blades oblong, 10–25 × 3–7 cm, papery, base<br />
cuneate, margin serrate, apex mucronate. Inflorescences axillary<br />
or terminal, paniculate. Flowers globose in bud. Sepals broadly<br />
ovate, less than 1 mm. Petals white or pale yellow, 3–4 mm,<br />
caducous. Stamens 10. Ovary globose to broadly ovoid; style extremely<br />
short; stigma slightly expanded. Fruit reddish, subglobose,<br />
8–10 mm in diam. Fl. Jul–Oct, fr. Jan–Mar. 2n = 36, 54.<br />
Hillside and valley woods; 600–1200 m. S and SW Yunnan [Bhutan,<br />
Cambodia, NE India, Indonesia, Laos, Malaysia, Myanmar, Nepal,<br />
Pakistan, Philippines, Sri Lanka, Thailand, NW Vietnam].<br />
6. Glycosmis esquirolii (H. Léveillé) Tanaka, Bull. Soc. Bot.<br />
France 75: 709. 1928.<br />
锈毛山小橘 xiu mao shan xiao ju<br />
Clausena esquirolii H. Léveillé, Repert. Spec. Nov. Regni<br />
Veg. 9: 324. 1911; C. ferruginea C. C. Huang; Glycosmis ferruginea<br />
(C. C. Huang) C. C. Huang; G. winitii Craib.<br />
Trees 6–10 m tall. Leaves 4–7-foliolate; leaflet blades<br />
ovate to oblong, 10–16 × 4–7 cm, base cuneate, margin dentate,<br />
apex acuminate to obtuse. Inflorescences axillary or terminal,<br />
paniculate. Sepals broadly ovate, ca. 1 mm. Petals pale yellowish<br />
white, 3–4 mm. Stamens 10; filaments widest in ± their basal<br />
half; anthers elliptic, ca. 1 mm. Ovary subglobose, rust-colored<br />
villosulous; style extremely short. Fl. Oct–Mar, fr. Apr.<br />
Mountain woods and thickets; 400–1300 m. W Guangxi, S Guizhou,<br />
S and SE Yunnan [Myanmar, Thailand].<br />
7. Glycosmis lucida Wallich ex C. C. Huang, Guihaia 7: 119.<br />
1987.<br />
亮叶山小橘 liang ye shan xiao ju<br />
Glycosmis cyanocarpa (Blume) Sprengel var. cymosa<br />
Kurz; G. cymosa (Kurz) J. Narayanaswami ex Tanaka (1941),<br />
not Zippelius ex Spanoghe (1841).<br />
Trees 3–5 m tall. Leaves (1 or)3- or 5(or 6)-foliolate;<br />
petiolules 2–8 mm; leaflet blades oblong to lanceolate, 7–18 ×<br />
3–6 cm, margin entire or repand, apex acuminate. Inflorescences<br />
81
82<br />
axillary or terminal, paniculate, 1–4 cm, many flowered. Sepals<br />
broadly ovate, ca. 1 mm, margin ciliate. Petals ca. 5 × 2–3 mm.<br />
Stamens 10; filaments linear. Ovary terete. Fruit orange, broadly<br />
ellipsoid to ovoid, 1–1.4 × 0.8–1.2 cm, 1-seeded. Fl. and fr.<br />
year-round but flowering peak Jan–Mar.<br />
Mountain woods; 900–1400 m. Yunnan [Bhutan, India, NE<br />
Myanmar].<br />
Stone (Proc. Acad. Nat. Sci. Philadelphia 137: 5. 1985) placed<br />
Glycosmis lucida in synonymy of G. cyanocarpa (Blume) Sprengel.<br />
8. Glycosmis oligantha C. C. Huang, Guihaia 7: 122. 1987.<br />
少花山小橘 shao hua shan xiao ju<br />
Shrubs or trees, to 3 m tall. Leaves (3 or)5- or 7-foliolate;<br />
petiolules 3–5 mm; leaflet blades narrowly lanceolate, 5–9 ×<br />
1.5–2.5 cm, base attenuate, margin entire or repand, apex acuminate.<br />
Inflorescences axillary, 1–5-flowered. Sepals broadly<br />
ovate, ca. 1 mm wide. Petals ovate, ca. 3 mm, glabrous, apex<br />
obtuse. Stamens 10, longer ones ca. 2.5 mm, shorter ones ca. 1.5<br />
mm. Ovary globose; style extremely short. Fruit not seen.<br />
● Hillside woods; 200–500 m. SW Guangxi.<br />
9. Glycosmis craibii Tanaka, Bull. Mus. Natl. Hist. Nat., sér. 2,<br />
2: 159. 1930.<br />
毛山小橘 mao shan xiao ju<br />
Glycosmis puberula Lindley var. craibii (Tanaka) B. C.<br />
Stone.<br />
Trees to 5 m tall. Leaves (1–)3- or 5-foliolate; leaflet blades<br />
oblong, lanceolate, or ovate, 5–10 × 2–3 cm, papery or rigidly<br />
so, base attenuate to cuneate, margin entire, apex acuminate to<br />
mucronate. Inflorescences axillary or terminal, less than 3 cm or<br />
rarely ca. 4 cm. Sepals broadly ovate to ovate, less than 1 mm or<br />
ca. 1 mm. Petals ca. 3 mm. Filaments linear or widest in ± their<br />
basal half. Ovary terete in bud, becoming broadly conic, gourdshaped,<br />
or ovoid at anthesis, slightly pubescent or glabrous. Fruit<br />
reddish to orange, subglobose, 0.8–1.4 cm in diam., 1- or<br />
2-seeded. Fl. and fr. year-round.<br />
Hillside forests, woods, and thickets. Hainan, S Yunnan [N and NE<br />
Thailand, Vietnam].<br />
Stone (Proc. Acad. Nat. Sci. Philadelphia 137: 18. 1985) reduced<br />
Glycosmis craibii to a variety of G. puberula Lindley.<br />
1a. Filaments linear; ovary slightly pubescent<br />
...................................................................... 9a. var. craibii<br />
1b. Filaments widest in ± their basal half; ovary<br />
glabrous ....................................................... 9b. var. glabra<br />
9a. Glycosmis craibii var. craibii<br />
毛山小橘(原变种) mao shan xiao ju (yuan bian zhong)<br />
Trees to 3 m tall. Leaflet blades oblong to lanceolate, 7–9 ×<br />
2.5–3 cm, papery, base attenuate, apex acuminate. Inflorescences<br />
axillary, less than 3 cm, few flowered. Sepals broadly<br />
ovate, ca. 1 mm wide. Petals subelliptic. Stamens slightly longer<br />
than petals; filaments linear. Ovary conic to gourd-shaped at<br />
anthesis, slightly pubescent. Fruit reddish to orange, 0.8–1 cm in<br />
diam., 1-seeded. Fl. Apr–May, fr. Aug–Oct.<br />
<strong>RUTACEAE</strong><br />
Hillside forests. S Yunnan [NE Thailand].<br />
9b. Glycosmis craibii var. glabra (Craib) Tanaka, Bull. Mus.<br />
Natl. Hist. Nat., sér. 2, 2: 159. 1930.<br />
光叶山小橘 guang ye shan xiao ju<br />
Glycosmis singuliflora Craib var. glabra Craib, Fl. Siam. 1:<br />
226. 1926.<br />
Trees to 5 m tall. Petiolules 2–6 mm; leaflet blades oblong,<br />
lanceolate, or ovate, 5–10 × 2–3 cm, rigidly papery, base attenuate<br />
to cuneate, apex acuminate to mucronate. Inflorescences<br />
axillary or terminal, rarely to 4 cm. Sepals ovate, less than 1 mm.<br />
Petals caducous. Stamens 10; filaments widest in ± their basal<br />
half. Ovary broadly ovoid at anthesis, glabrous. Fruit orange,<br />
1–1.4 cm in diam., 1- or 2-seeded. Fl. and fr. year-round.<br />
Hillside woods and thickets; 300–500 m. Hainan [N Thailand,<br />
Vietnam].<br />
Stone (Proc. Acad. Nat. Sci. Philadelphia 137: 14. 1985) placed<br />
Glycosmis craibii var. glabra in synonymy of G. ovoidea Pierre.<br />
10. Glycosmis parviflora (Sims) Little, Phytologia 2: 463.<br />
1948.<br />
小花山小橘 xiao hua shan xiao ju<br />
Limonia parviflora Sims, Bot. Mag. 50: t. 2416. 1823;<br />
Citrus erythrocarpa Hayata; Glycosmis citrifolia Lindley; G.<br />
erythrocarpa (Hayata) Hayata; L. citrifolia Willdenow (1809),<br />
not Salisbury (1796).<br />
Shrubs or trees, 1–3 m tall. Leaves (1 or)2–4(or<br />
5)-foliolate; petiolules 1–5 mm; leaflet blades elliptic, oblong, or<br />
lanceolate, 5–19 × 2.5–8 cm, glabrous, base cuneate, margin<br />
entire, apex mucronate, acuminate, or obtuse. Inflorescences<br />
axillary or terminal, paniculate, 3–5 cm when axillary, to 14 cm<br />
when terminal. Sepals ovate, ca. 1 mm wide, apex obtuse. Petals<br />
white, ca. 4 mm, oblong. Stamens (8 or)10. Ovary broadly ovoid<br />
to globose; style extremely short; stigma slightly expanded. Fruit<br />
pale yellowish white but turning reddish to dark vermilion,<br />
globose to ellipsoid, 1–1.5 cm in diam., (1 or)2- or 3-seeded. Fl.<br />
Mar–May, fr. Jul–Sep. 2n = 54.<br />
Mountain woods; 200–1000 m. Fujian, Guangdong, Guangxi,<br />
Guizhou, Hainan, Taiwan, S and W Yunnan [Japan (including Ryukyu<br />
Islands), Myanmar, NE Vietnam].<br />
11. Glycosmis xizangensis (C. Y. Wu & H. Li) D. D. Tao, Acta<br />
Phytotax. Sin. 32: 369. 1994.<br />
西臧山小橘 xi zang shan xiao ju<br />
Walsura xizangensis C. Y. Wu & H. Li, Acta Phytotax. Sin.<br />
18: 110. 1980; Glycosmis medogensis D. D. Tao ex C. C. Huang,<br />
nom. illeg. superfl.; G. motuoensis D. D. Tao, nom. illeg.<br />
superfl.<br />
Shrubs or trees, to 3 m tall. Leaves 3- or 4-foliolate;<br />
petiolules 4–10 mm; leaflet blades alternate to subopposite,<br />
broadly ovate to obovate-elliptic, 12–20 × 5–9 cm, subleathery,<br />
abaxially pale green, adaxially dark green, base cuneate, margin<br />
entire or repand, apex mucronate. Inflorescences axillary, 2.5–4
cm. Sepals broadly ovate, less than 2 mm, margin ciliate. Petals<br />
oblong, ca. 1.5 mm, glabrous, apex obtuse. Stamens 10; filaments<br />
flattened; anthers elliptic. Ovary subglobose; style terete.<br />
Fruit not seen.<br />
<strong>RUTACEAE</strong><br />
● Hillside woods; ca. 800 m. SE Xizang (Mêdog).<br />
The later names Glycosmis medogensis and G. motuoensis are<br />
based on the same type (Qinghai-Xizang Exped. 74–4540) as Walsura<br />
xizangensis.<br />
16. CLAUSENA N. L. Burman, Fl. Indica, 87, 243. 1768.<br />
黄皮属 huang pi shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Shrubs or trees, unarmed, without rust-colored villosulous indumentum on terminal and axillary buds or young inflorescences.<br />
Leaves alternate, odd-pinnate. Inflorescences terminal or axillary, paniculate or in loose racemes. Flowers bisexual or very rarely<br />
female, globose to pyriform or rarely ovoid in bud. Sepals 4 or 5, connate at base or to their full length. Petals 4 or 5, imbricate in bud.<br />
Stamens 8 or 10, distinct, alternately unequal in length; filaments ± abruptly dilated toward base, ± straight or geniculate. Disk<br />
columnar, conic, bell-shaped, or ± hourglass-shaped. Gynoecium (2–)4- or 5-loculed, syncarpous; radial walls of locules straight;<br />
ovules 2 per locule; style 0.5–2.5 × as long as ovary, deciduous in fruit. Fruit a berry, with neither pulp nor pulp vesicles; endocarp<br />
membranous. Seeds with membranous seed coat; endosperm lacking; embryo straight; cotyledons elliptic, plano-convex, neither<br />
convolute nor folded; hypocotyl partly included between cotyledons.<br />
Between ca. 15 and 30 species: Africa, E, S, and SE Asia, NE Australia, SW Pacific islands; ten species (five endemic) in China.<br />
This genus is especially diverse in Guangdong, Guangxi, and Yunnan.<br />
1a. Calyx lobes 4; petals 4(or 5); stamens 8.<br />
2a. Leaves 15–37-foliolate; fruit vermilion or pale yellow.<br />
3a. Fruit vermilion; leaflet blades 2–9 × 1–3 cm .................................................................................................. 1. C. excavata<br />
3b. Fruit pale yellow; leaflet blades not more than 2 × 1 cm ........................................................................... 2. C. hainanensis<br />
2b. Leaves not more than 15-foliolate; fruit bluish black.<br />
4a. Leaves 5–15-foliolate; leaflet blades asymmetric .......................................................................................... 3. C. dunniana<br />
4b. Leaves 5–7-foliolate; leaflet blades symmetric ................................................................................................... 4. C. vestita<br />
1b. Calyx lobes 5; petals (4 or)5; stamens 10.<br />
5a. Leaves 19–25-foliolate; stigma capitate or shield-shaped ....................................................................................... 5. C. odorata<br />
5b. Leaves not more than 15-foliolate; stigma punctiform to capitellate.<br />
6a. Fruit bluish black ................................................................................................................................................... 10. C. lenis<br />
6b. Fruit pale yellow to reddish.<br />
7a. Ovary and fruit pubescent; flower buds 5-ridged ....................................................................................... 6. C. lansium<br />
7b. Ovary pubescent or glabrous but fruit glabrous; flower buds not ridged.<br />
8a. Fruit longer than wide; leaflets more than 5 cm wide at middle of rachis ................................... 7. C. yunnanensis<br />
8b. Fruit ± as wide as long; leaflets rarely to 5 cm wide at middle of rachis.<br />
9a. Leaflet blades 2–6 × 1–3 cm, subsessile .................................................................................. 8. C. emarginata<br />
9b. Leaflet blades 5–12 × 2–4 cm, subtended by a 2–4 mm petiolule ....................................... 9. C. anisum-olens<br />
1. Clausena excavata N. L. Burman, Fl. Indica, 89. 1768.<br />
假黄皮 jia huang pi<br />
Amyris punctata Roxburgh; Clausena excavata var. lunulata<br />
(Hayata) Tanaka; C. forbesii Engler; C. lunulata Hayata; C.<br />
moningerae Merrill; C. punctata (Roxburgh) Wight & Arnott;<br />
C. tetramera Hayata; Lawsonia falcata Loureiro.<br />
Shrubs 1–2 m tall. Branchlets and leaf rachises pubescent,<br />
with oil glands. Leaves 21–27-foliolate but on young plants to<br />
41-foliolate; petiolules 2–5 mm; leaflet blades ovate, lanceolate,<br />
or rhomboid, asymmetric, 2–9 × 1–3 cm, both surfaces pubescent<br />
or only pubescent along veins, base oblique, margin repand.<br />
Inflorescences terminal; bracts opposite. Flowers globose in<br />
bud. Petals white or pale yellowish white, ovate to obovate, 2–3<br />
× 1–2 mm. Stamens 8; filaments basally dilated, geniculate at<br />
middle, apically linear. Style stout. Fruit ellipsoid, 1.2–1.8 ×<br />
0.8–1.5 cm, 1- or 2-seeded. Fl. Apr–May and Jul–Aug(–Oct in<br />
Hainan), fr. Aug–Oct. 2n = 36.<br />
Below 1000 m. S Fujian, Guangdong, Guangxi, Hainan, Taiwan, S<br />
Yunnan [Bangladesh, Bhutan, Cambodia, India, Indonesia, Laos, Malaysia,<br />
Myanmar, Nepal, Philippines, Thailand, Vietnam].<br />
2. Clausena hainanensis C. C. Huang & F. W. Xing, Guihaia<br />
12: 215. 1992.<br />
海南黄皮 hai nan huang pi<br />
Shrubs or trees, to 5 m tall. Leaves 25–37-foliolate; petiolules<br />
ca. 1 mm; leaflet blades alternate or opposite, asymmetrically<br />
elliptic, ca. 2 × 1 cm, midvein slightly depressed, base<br />
oblique and obtuse, margin repand, apex obtuse. Flowers not<br />
known. Infructescences terminal, narrowly paniculate, ca. 5 cm.<br />
Fruit pale yellow, ellipsoid, ca. 8 × 5 mm, pubescent. Fr.<br />
Jul–Aug.<br />
● Limestone mountains; 900–1000 m. Hainan (Changjiang).<br />
3. Clausena dunniana H. Léveillé, Repert. Spec. Nov. Regni<br />
Veg. 11: 67. 1912.<br />
齿叶黄皮 chi ye huang pi<br />
83
84<br />
Trees 2–5 m tall, deciduous. Leaves 5–15-foliolate; petiolules<br />
4–8 mm; leaflet blades ovate to lanceolate, 4–10 × 2–5 cm,<br />
glabrous or villous, base asymmetric, margin serrate or rarely<br />
repand, apex acute to acuminate. Inflorescences terminal. Flowers<br />
4(or 5)-merous, globose in bud. Stamens 8(or 10); filaments<br />
geniculate at middle, subulate at apex. Disk small. Ovary globose;<br />
style shorter than ovary. Fruit bluish black when ripe, globose,<br />
1–1.5 cm in diam., 1- or 2-seeded. Fl. Jun–Jul, fr. Oct–<br />
Nov.<br />
Montane forests, moist areas in mountains; 300–1500 m. Guangdong,<br />
Guangxi, Guizhou, W Hubei, Hunan, E and SE Sichuan, S Yunnan<br />
[NE Vietnam].<br />
Molino (Bull. Mus. Natl. Hist. Nat., B, Adansonia 16: 130. 1994)<br />
placed Clausena dunniana in synonymy of C. anisata (Willdenow) J. D.<br />
Hooker ex Bentham.<br />
1a. Leaflet blades glabrous ........................... 3a. var. dunniana<br />
1b. Leaflet blades villous ................................. 3b. var. robusta<br />
3a. Clausena dunniana var. dunniana<br />
齿叶黄皮(原变种) chi ye huang pi (yuan bian zhong)<br />
Clausena dentata (Willdenow) M. Roemer var. dunniana<br />
(H. Léveillé) Swingle.<br />
Leaflet blades glabrous.<br />
Montane forests; 300–1500 m. Guangdong, Guangxi, Guizhou,<br />
Hunan, SE Sichuan, S Yunnan [NE Vietnam].<br />
Molino (Bull. Mus. Natl. Hist. Nat., B, Adansonia 16: 130. 1994)<br />
placed Clausena dentata var. dunniana in synonymy of C. anisata.<br />
3b. Clausena dunniana var. robusta (Tanaka) C. C. Huang,<br />
Acta Phytotax. Sin. 16(2): 85. 1978.<br />
毛齿叶黄皮 mao chi ye huang pi<br />
Clausena dentata var. robusta Tanaka, J. Bot. (Morot) 66:<br />
228. 1930; C. dentata var. henryi Swingle; C. henryi (Swingle)<br />
C. C. Huang.<br />
Leaflet blades villous. Leaflet blades and fruit slightly<br />
larger than those of autonym variety.<br />
● Moist areas in mountains; 300–1300 m. W Hubei, Hunan,<br />
Guangxi, Guizhou, E Sichuan, S Yunnan.<br />
Molino (Bull. Mus. Natl. Hist. Nat., B, Adansonia 16: 130. 1994)<br />
placed Clausena dunniana var. robusta, C. dentata var. robusta, C.<br />
dentata var. henryi, and C. henryi in synonymy of C. anisata.<br />
4. Clausena vestita D. D. Tao, Acta Bot. Yunnan. 6: 73. 1984.<br />
毛叶黄皮 mao ye huang pi<br />
Trees to 4 m tall. Leaves 5–7-foliolate; petiolules 2–4 mm;<br />
leaflet blades alternate, broadly ovate, elliptic, or orbicular, 3–11<br />
× 1.5–8 cm, apex rounded, obtuse, or acute. Calyx 4-parted,<br />
persistent in fruit. Fruit bluish black, globose to broadly ellipsoid,<br />
1.2–1.6 cm in diam., glabrous, 1–3-seeded. Seeds ovoid to<br />
broadly ellipsoid, 8–12 × 6–9 mm. Fr. May.<br />
● Thickets in dry hot river valleys; ca. 1900 m. NW Yunnan<br />
(Lijiang).<br />
<strong>RUTACEAE</strong><br />
Molino (Bull. Mus. Natl. Hist. Nat., B, Adansonia 16: 130. 1994)<br />
placed Clausena vestita in synonymy of C. anisata (Willdenow) J. D.<br />
Hooker ex Bentham.<br />
5. Clausena odorata C. C. Huang, Acta Phytotax. Sin. 8: 92.<br />
1959.<br />
香花黄皮 xiang hua huang pi<br />
Trees to 2 m tall. Shoots dark purplish red. Leaves 19–<br />
25-foliolate; petiolules 1–2 mm; leaflet blades oblong to lanceolate,<br />
asymmetric, 4–7 × 2–3.5 cm, base oblique, margin crenulate<br />
to subentire, apex acuminate and often retuse. Inflorescences<br />
terminal, paniculate. Flowers 5-merous, fragrant. Petals white,<br />
3–4 mm. Stamens 10. Stigma capitate to shield-shaped. Fl. Apr.<br />
● Thickets; ca. 1800 m. Yunnan (Mojiang).<br />
Molino (Bull. Mus. Natl. Hist. Nat., B, Adansonia 16: 130. 1994)<br />
placed Clausena odorata in synonymy of C. anisata (Willdenow) J. D.<br />
Hooker ex Bentham.<br />
6. Clausena lansium (Loureiro) Skeels, Bull. Bur. Pl. Industr.<br />
U.S.D.A. 168: 31. 1909.<br />
黄皮 huang pi<br />
Quinaria lansium Loureiro, Fl. Cochinch. 1: 272. 1790;<br />
Clausena wampi (Blanco) Oliver; Cookia wampi Blanco.<br />
Trees to 12 m tall. Leaves 5–11-foliolate; petiolules 4–8<br />
mm; leaflet blades ovate to ovate-elliptic, 6–14 × 3–6 cm,<br />
midvein often pubescent, base rounded to broadly cuneate,<br />
margin repand to crenulate. Inflorescences terminal, paniculate.<br />
Flowers globose in bud. Calyx lobes broadly ovate, ca. 1 mm.<br />
Petals oblong, ca. 5 mm. Stamens 10; filaments linear, basal<br />
portion slightly expanded. Disk short. Ovary hirsute. Fruit pale<br />
yellow, globose, ellipsoid, or broadly ovoid, 1.5–3 × 1–2 cm,<br />
1–4-seeded. Fl. Apr–May, fr. Jul–Aug (fl. and fr. ca. 1 month<br />
earlier in Hainan). 2n = 18.<br />
Fujian, Guangdong, Guangxi, S Guizhou, Hainan, Sichuan, SE<br />
Yunnan [Vietnam].<br />
This species is cultivated for its fruit in China and elsewhere in<br />
warm areas of the world.<br />
7. Clausena yunnanensis C. C. Huang, Acta Phytotax. Sin. 8:<br />
91. 1959.<br />
云南黄皮 yun nan huang pi<br />
Trees 3–8 m tall. Bark gray. Branchlets stout; pith large.<br />
Leaves 5–11-foliolate; petiolules 4–6 mm; leaflet blades oblong<br />
to ovate-elliptic, 10–40 × 5–16 cm, papery, margin denticulate.<br />
Inflorescences terminal, paniculate, to 40 cm; bracts narrowly<br />
ovate, apex acute. Flowers globose in bud. Pedicel 1.5–3 mm.<br />
Sepals ovate, ca. 1 mm. Petals 2–3 mm. Stamens 10. Fruit<br />
orange, ellipsoid, ca. 3 × 2 cm, 1- or 2-seeded. Fl. Jun, fr. Sep–<br />
Oct.<br />
● Mountain forests, forests on limestone; 500–1300 m. SW and W<br />
Guangxi, SE Yunnan.<br />
Molino (Bull. Mus. Natl. Hist. Nat., B, Adansonia 16: 137. 1994)<br />
placed Clausena yunnanensis in synonymy of C. engleri Tanaka.<br />
1a. Branchlets glabrate; leaflet blades<br />
abaxially shortly pubescent on<br />
venation .............................................. 7a. var. yunnanensis
1b. Branchlets densely pubescent; leaflet<br />
blades abaxially with dense tufts of<br />
long weak trichomes, especially on<br />
midvein ........................................... 7b. var. longgangensis<br />
7a. Clausena yunnanensis var. yunnanensis<br />
云南黄皮(原变种) yun nan huang pi (yuan bian zhong)<br />
Branchlets glabrate. Leaf rachises minutely pubescent;<br />
petiolules glabrous or minutely pubescent; leaflet blades abaxially<br />
shortly pubescent on venation, adaxially glabrous or<br />
glabrate.<br />
● Mountain forests. W Guangxi, SE Yunnan.<br />
7b. Clausena yunnanensis var. longgangensis C. F. Liang &<br />
Y. X. Lu, Guihaia 10: 104. 1990.<br />
弄岗黄皮 nong gang huang pi<br />
Clausena yunnanensis var. dolichocarpa C. F. Liang & Y.<br />
X. Lu ex C. C. Huang.<br />
Branchlets, leaf rachises, and petiolules densely pubescent.<br />
Leaflet blades abaxially with dense tufts of long weak trichomes,<br />
especially on midvein.<br />
● Forests on limestone. SW Guangxi (Ningming).<br />
Molino (Bull. Mus. Natl. Hist. Nat., B, Adansonia 16: 138. 1994)<br />
placed Clausena yunnanensis var. longgangensis in synonymy of C.<br />
engleri. Clausena yunnanensis var. dolichocarpa was not mentioned.<br />
8. Clausena emarginata C. C. Huang, Acta Phytotax. Sin. 8:<br />
93. 1959.<br />
小黄皮 xiao huang pi<br />
Trees 4–15 m tall. Branchlets grayish black. Leaves<br />
5–11-foliolate; leaflet blades subsessile, obliquely lanceolate to<br />
ovate, 2–6 × 1–3 cm, dark brownish black when dry, base<br />
oblique, margin crenate, apex obtuse. Inflorescences terminal or<br />
axillary, 3–7 cm; bracts subulate. Calyx lobes broadly ovate.<br />
Petals ca. 4 mm at anthesis. Stamens 10; filaments slightly<br />
expanded in ± their basal half, geniculate, longer than anthers.<br />
Disk elongated. Ovary globose, glabrous. Fruit pale yellow,<br />
<strong>RUTACEAE</strong><br />
globose, 8–10 mm in diam., 1- or 2-seeded. Fl. Mar–Apr, fr.<br />
Jun–Jul.<br />
● Valley forests; 300–800 m. W Guangxi, SE Yunnan.<br />
Molino (Bull. Mus. Natl. Hist. Nat., B, Adansonia 16: 134. 1994)<br />
placed Clausena emarginata in synonymy of C. sanki (Perrottet) J. F.<br />
Molino, which he later (Taxon 44: 427. 1995) decided should be called<br />
C. anisum-olens.<br />
9. Clausena anisum-olens (Blanco) Merrill, Publ. Bur. Sci.<br />
Gov. Lab. 17: 21. 1904.<br />
细叶黄皮 xi ye huang pi<br />
Cookia anisum-olens Blanco, Fl. Filip. 359. 1837; Clausena<br />
grandifolia Merrill; C. laxifolia Quisumbing & Merrill; C.<br />
loheri Merrill; C. todayensis Elmer; C. warburgii Perkins.<br />
Trees 3–6 m tall. Leaves 5–11-foliolate; petiolules 2–4<br />
mm; leaflet blades falcately lanceolate to obliquely ovate, 5–12<br />
× 2–4 cm, margin repand, apex acuminate to slightly obtuse.<br />
Inflorescences terminal. Flowers globose in bud, fragrant. Calyx<br />
lobes ovate, ca. 1 mm. Petals white, oblong, ca. 3 mm. Stamens 8<br />
or 10; filaments slightly expanded in ± their basal half, geniculate.<br />
Style slightly shorter than ovary. Fruit pale yellow, globose,<br />
1–2 cm in diam., 1- or 2-seeded. Fl. Apr–May, fr. Jul–Aug.<br />
Taiwan (Lan Yu); cultivated in Guangdong, Guangxi, Yunnan<br />
[Philippines].<br />
10. Clausena lenis Drake, J. Bot. (Morot) 6: 276. 1892.<br />
光滑黄皮 guang hua huang pi<br />
Clausena kerrii Craib.<br />
Trees 2–3 m tall. Branchlet pith fairly large. Leaves<br />
9–15-foliolate; leaflet blades ovate to lanceolate, asymmetric,<br />
2–5 × 1.5–3.5 cm at base of rachis, ca. 18 × 11 cm at middle and<br />
apex of rachis, margin crenate. Inflorescences terminal. Flowers<br />
ovoid in bud. Calyx lobes 5. Petals (4 or)5, white but basally<br />
reddish to dark yellow. Stamens (8 or)10; filaments short; anthers<br />
oblong. Fruit globose, ca. 1 cm in diam., 1–3-seeded. Fl.<br />
Apr–Jun, fr. Sep–Oct.<br />
Mountain forests; 500–1300 m. Guangdong, SW Guangxi, Hainan,<br />
S Yunnan [Laos, Thailand, NE Vietnam].<br />
17. MURRAYA J. Koenig ex Linnaeus, Mant. Pl. 2: 554, 563. 1771 [“Murraea”], nom. cons.<br />
Bergera J. Koenig ex Linnaeus; Camunium Adanson.<br />
九里香属 jiu li xiang shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Shrubs or trees, unarmed, without rust-colored villosulous indumentum on terminal and axillary bud or young inflorescences.<br />
Leaves alternate, odd-pinnate (occasional leaves even-pinnate or 1-foliolate). Inflorescences terminal or terminal and axillary,<br />
paniculate or reduced to cymes or few to several-flowered racemes. Flowers bisexual, ellipsoid to obovoid, or narrowly so or<br />
subcylindric in bud. Sepals 4 or 5, connate at base or to ± half their length. Petals 4 or 5, imbricate in bud. Stamens (5–)8 or 10, distinct,<br />
alternately unequal in length; filaments linear or sublinear, ± straight. Disk annular, pulvinate, or columnar. Gynoecium 2–5-loculed,<br />
syncarpous; radial walls of locules straight; ovules 1 or 2 per locule; style 3–7 × as long as ovary, deciduous in fruit or sometimes basal<br />
portion persistent. Fruit a berry, with mucilaginous pulp and without pulp vesicles; endocarp fleshy. Seeds with membranous or fleshy<br />
seed coat; endosperm lacking; embryo straight; cotyledons elliptic, plano-convex, neither convolute nor folded; hypocotyl partly<br />
included between cotyledons.<br />
85
86<br />
<strong>RUTACEAE</strong><br />
About 12 species: E, S, and SE Asia, Australia, SW Pacific islands; nine species (five endemic) in China.<br />
In a cladistic analysis of selected species of subfamily Aurantioideae based on plastid DNA sequences and phytochemical features, R. Samuel et<br />
al. (Pl. Biol. 3: 77–87. 2001) proposed that Murraya is heterogeneous and that plants of M. sect. Bergera (J. Koenig ex Linnaeus) But & Y. C. Kong<br />
(including species 4–9 in the present enumeration) are generically distinct from those of M. sect. Murraya. However, as they pointed out, it is not clear<br />
yet whether Bergera is distinct from Clausena.<br />
1a. Petals 1–2 cm; seeds villous.<br />
2a. Leaf rachises winged .................................................................................................................................................... 1. M. alata<br />
2b. Leaf rachises not winged.<br />
3a. Leaflet blades mostly suborbicular to ovate to elliptic, 1.5–6 cm wide ....................................................... 2. M. paniculata<br />
3b. Leaflet blades elliptic-obovate or obovate, 0.5–3 cm wide ............................................................................... 3. M. exotica<br />
1b. Petals not more than 0.8 cm; seeds glabrous.<br />
4a. Flowers 4(or 5)-merous; stamens 8(or 10).<br />
5a. Leaflet blades lanceolate, 0.8–2 cm wide, tertiary veins inconspicuous ...................................................... 4. M. tetramera<br />
5b. Leaflet blades ovate to elliptic or rarely lanceolate or obovate, 2–4 cm wide, tertiary veins adaxially<br />
slightly prominent .................................................................................................................................... 5. M. euchrestifolia<br />
4b. Flowers 5-merous; stamens 10.<br />
6a. Leaves 11–31-foliolate.<br />
7a. Leaflet blades 3–6 mm wide, apex rounded to obtuse ........................................................................ 6. M. microphylla<br />
7b. Leaflet blades 5–20 mm wide, apex mucronate to acuminate ................................................................... 7. M. koenigii<br />
6b. Leaves 3–11-foliolate.<br />
8a. Leaflet blades pubescent abaxially ..................................................................................................... 9. M. kwangsiensis<br />
8b. Leaflet blades glabrous.<br />
9a. Leaflet blades 5–6 × 2–3 cm ............................................................................................................ 8. M. crenulata<br />
9b. Leaflet blades 7–18 × 4–10 cm ................................................................................................... 9. M. kwangsiensis<br />
1. Murraya alata Drake, J. Bot. (Morot) 6: 276. 1892.<br />
翼叶九里香 yi ye jiu li xiang<br />
Murraya alata var. hainanensis Swingle.<br />
Shrubs 1–2 m tall. Branches yellowish gray to grayish<br />
white. Leaves 5–9-foliolate; petiolules ± short or leaflets subsessile;<br />
leaflet blades obovate to obovate-elliptic, 1–3 × 0.6–1.5<br />
cm, margin crenulate or entire, apex rounded or rarely obtuse.<br />
Inflorescences axillary, cymose. Flowers 5-merous. Sepals<br />
1.5–2 mm. Petals white, 10–15 × 3–5 mm. Stamens 10. Ovary<br />
2-loculed; ovules 1 per locule; style ca. 2 × as long as ovary;<br />
stigma capitate. Fruit vermilion, ovoid to globose, ca. 1 cm in<br />
diam., 2–4-seeded. Fl. May–Jul, fr. Oct–Dec.<br />
Thickets in sandy areas; near sea level. SW Guangdong (Leizhou<br />
Bandao), SW Guangxi (Beihai), S Hainan [NE Vietnam].<br />
2. Murraya paniculata (Linnaeus) Jack, Malayan Misc. 1: 31.<br />
1820.<br />
千里香 qian li xiang<br />
Chalcas paniculata Linnaeus, Mant. Pl. 1: 68. 1767; C.<br />
exotica (Linnaeus) Millspaugh; Murraya omphalocarpa Hayata;<br />
M. paniculata var. exotica (Linnaeus) C. C. Huang; M. paniculata<br />
var. omphalocarpa (Hayata) Tanaka.<br />
Shrubs or trees, 1.8–12 m tall. Older branchlets grayish<br />
white to pale yellowish gray. Leaves 2–5-foliolate; petiolules<br />
less than 1 cm; leaflet blades mostly suborbicular to ovate to<br />
elliptic, 2–9 × 1.5–6 cm, margin entire or crenulate, apex<br />
rounded to acuminate. Inflorescences terminal or terminal and<br />
axillary. Flowers 5-merous, fragrant. Sepals ovate to lanceolate,<br />
to 2 mm, persistent in fruit. Petals white, narrowly elliptic to<br />
oblanceolate, to 2 cm. Stamens 10. Fruit orange to vermilion,<br />
narrowly ellipsoid or rarely ovoid, 1–2 × 0.5–1.4 cm. Seeds<br />
villous. Fl. Apr–Oct, fr. Apr–Feb. 2n = 18.<br />
Thickets, montane forests; near sea level to 1300 m. Fujian,<br />
Guangdong, Guangxi, S Guizhou, Hainan, S Hunan, Taiwan, Yunnan<br />
[Bhutan, Cambodia, India, Indonesia, Japan (Ryukyu Islands), Laos,<br />
Malaysia, Myanmar, Nepal, New Guinea, Pakistan, Philippines, Sri<br />
Lanka, Thailand, Vietnam; Australia, SW Pacific islands].<br />
Murraya paniculata var. omphalocarpa was accepted by Chang<br />
(Fl. Taiwan, ed. 2, 3: 527. 1993).<br />
3. Murraya exotica Linnaeus, Mant. Pl. 2: 563. 1771.<br />
九里香 jiu li xiang<br />
Chalcas exotica (Linnaeus) Millspaugh; Murraya paniculata<br />
(Linnaeus) Jack var. exotica (Linnaeus) C. C. Huang.<br />
Trees to 8 m tall. Older branchlets grayish white to pale<br />
yellowish gray. Leaves 3–7-foliolate; petiolules rather short;<br />
leaflet blades elliptic-obovate or obovate, 1–6 × 0.5–3 cm, margin<br />
entire, apex rounded or obtuse. Inflorescences terminal or<br />
terminal and axillary. Flowers 5-merous, fragrant. Sepals ovate,<br />
ca. 1.5 mm. Petals white, oblong, 1–1.5 cm. Stamens 10. Fruit<br />
orange to vermilion, broadly ovoid, 8–12 × 6–10 mm. Seeds<br />
villous. Fl. Apr–Aug, fr. Sep–Dec. 2n = 18*.<br />
● Thickets; near sea level. S Fujian, Guangdong, Guangxi, S<br />
Guizhou, Hainan, Taiwan.<br />
This species is widespread in cultivation in tropical and subtropical<br />
areas.<br />
4. Murraya tetramera C. C. Huang, Acta Phytotax. Sin. 8: 102.<br />
1959.<br />
四数九里香 si shu jiu li xiang
Trees 3–7 m tall. Leaves 5–11-foliolate; petiolules 2–4<br />
mm; leaflet blades lanceolate, 2–5 × 0.8–2 cm, dark brownish<br />
black when dry, apex acuminate. Inflorescences paniculate.<br />
Flowers 4-merous. Sepals ovate, less than 1 mm, connate at<br />
base. Petals white, oblong, 4–5 mm. Stamens 8. Ovary ellipsoid,<br />
ca. 1 mm. Fruit reddish, globose, 1–1.2 cm in diam., with many<br />
oil glands, 1–3-seeded. Seed coat membranous, smooth. Fl.<br />
Mar–Apr, fr. Jul–Aug.<br />
● Often on limestone mountains. W Guangxi (Bose, Debao), SE<br />
Yunnan.<br />
5. Murraya euchrestifolia Hayata, Icon. Pl. Formos. 6: 11.<br />
1916.<br />
豆叶九里香 dou ye jiu li xiang<br />
Chalcas euchrestifolia Tanaka; Clausena euchrestifolia<br />
(Hayata) Kanehira.<br />
Shrubs or trees, 1.5–7 m tall. Leaves 5–9-foliolate; leaflet<br />
blades ovate to elliptic or rarely lanceolate or obovate, 5–8 × 2–4<br />
cm, margin entire, apex mucronate to acuminate. Inflorescences<br />
paniculate. Flowers 4(or 5)-merous. Sepals pale yellowish green,<br />
ovate, 0.6–1.5 mm. Petals obovate-elliptic, 3–5 mm. Stamens<br />
8(or 10); anthers subglobose. Ovary pale yellowish green. Fruit<br />
red to dark red, globose, 1–1.5 cm in diam., 1- or 2-seeded.<br />
Seeds glabrous. Fl. Apr–Jul, fr. Sep–Dec.<br />
● Well-drained forests and thickets; 500–1400 m. Guangdong<br />
(Fengkai, Nan’ao), Guangxi (Fangcheng), S and SW Guizhou (Wangmo,<br />
Xingyi), Hainan (Changjiang), Taiwan, Yunnan.<br />
6. Murraya microphylla (Merrill & Chun) Swingle, J. Wash.<br />
Acad. Sci. 32: 26. 1942.<br />
小叶九里香 xiao ye jiu li xiang<br />
Clausena microphylla Merrill & Chun, Sunyatsenia 2: 251.<br />
1935.<br />
Shrubs or small trees. Leaves 11–21-foliolate; petiolules<br />
extremely short; leaflet blades suborbicular to ovate to elliptic,<br />
3–20 × 3–6 mm, glabrous, base usually inequilateral, margin<br />
crenate, apex rounded to obtuse. Inflorescences terminal, 10–<br />
30-flowered. Flowers 5-merous. Sepals ovate-elliptic, ca. 1 mm,<br />
persistent in fruit. Petals in bud 4–5 mm. Fruit ellipsoid to<br />
ovoid-ellipsoid, to 1 cm. Fl. Apr–May and Jul–Oct, fr. Nov–<br />
Dec.<br />
● Thickets in sandy areas. Guangdong, Hainan.<br />
7. Murraya koenigii (Linnaeus) Sprengel, Syst. Veg. 2: 315.<br />
1817.<br />
调料九里香 tiao liao jiu li xiang<br />
Bergera koenigii Linnaeus, Mant. Pl. 2: 555, 563. 1771;<br />
Chalcas koenigii (Linnaeus) Kurz.<br />
Shrubs or trees, to 4 m tall. Leaves 17–31-foliolate; leaflet<br />
blades ovate, 2–5 × 0.5–2 cm, base obtuse to rounded and<br />
oblique, margin entire or crenulate. Inflorescences terminal,<br />
paniculate, many flowered. Flowers 5-merous, ellipsoid in bud.<br />
Sepals ovate, less than 1 mm. Petals white, oblanceolate to<br />
<strong>RUTACEAE</strong><br />
oblong, 5–7 mm. Stamens 10. Stigma capitate. Fruit bluish<br />
black, ovoid to oblong, 1–1.5 cm, 1- or 2-seeded. Seed coat<br />
membranous. Fl. Mar–Apr, fr. Jul–Aug.<br />
Moist forests; 500–1600 m. Guangdong, S Hainan, S Yunnan<br />
(Xishuangbanna) [Bhutan, India, Laos, Nepal, Pakistan, Sri Lanka,<br />
Thailand, Vietnam].<br />
8. Murraya crenulata (Turczaninow) Oliver, J. Linn. Soc., Bot.<br />
5(Suppl. 2): 29. 1861.<br />
兰屿九里香 lan yu jiu li xiang<br />
Glycosmis crenulata Turczaninow, Byull. Moskovsk.<br />
Obshch. Isp. Prir., Otd. Biol. 30: 250. 1858; Chalcas crenulata<br />
(Turczaninow) Tanaka.<br />
Small trees. Branchlets and leaves glabrous. Leaves 7–<br />
11-foliolate; petiolules ca. 3 mm; leaflet blades ovate-elliptic,<br />
5–6 × 2–3 cm, base obtuse and oblique, apex acuminate. Inflorescences<br />
terminal, ca. 8 cm. Flowers 5-merous. Sepals suborbicular.<br />
Petals oblong, ca. 6 mm. Stamens 10. Ovary ca. 1.5<br />
mm; style ca. 2.5 mm, stout, basal portion often persistent in<br />
fruit. Fruit broadly ovoid to subglobose, ca. 6 mm.<br />
Taiwan (Lan Yu) [Indonesia, New Guinea, Philippines; SW Pacific<br />
islands].<br />
9. Murraya kwangsiensis (C. C. Huang) C. C. Huang, Acta<br />
Phytotax. Sin. 16(2): 85. 1988.<br />
广西九里香 guang xi jiu li xiang<br />
Trees 1–2 m tall. Leaves 3–11-foliolate; petiolules 2–3<br />
mm; leaflet blades alternate, ovate-oblong, 7–18 × 3–10 cm,<br />
leathery, both surfaces glabrous or abaxially pubescent, margin<br />
crenulate, apex obtuse to rounded. Flowers 5-merous, ellipsoid<br />
in bud. Sepals broadly ovate, ca. 1 mm. Petals ca. 4 mm. Stamens<br />
10. Fruit globose, ca. 1 cm in diam. Fl. May, fr. Oct.<br />
● Forests and thickets in valleys; 200–800 m. SW and W Guangxi,<br />
SE Yunnan.<br />
1a. Leaflet blades abaxially pubescent<br />
........................................................... 9a. var. kwangsiensis<br />
1b. Leaflet blades glabrous ...................... 9b. var. macrophylla<br />
9a. Murraya kwangsiensis var. kwangsiensis<br />
广西九里香(原变种) guang xi jiu li xiang (yuan bian zhong)<br />
Clausena kwangsiensis C. C. Huang, Acta Phytotax. Sin. 8:<br />
90. 1959.<br />
Leaflet blades 3–10 × 2.5–6.5 cm, abaxially pubescent.<br />
● Forests and thickets in valleys; 200–800 m. SW and W Guangxi,<br />
SE Yunnan.<br />
9b. Murraya kwangsiensis var. macrophylla C. C. Huang,<br />
Acta Phytotax. Sin. 16(2): 85. 1978.<br />
大叶九里香 da ye jiu li xiang<br />
Leaflet blades 7–18 × 4–10 cm, glabrous. Fruit red.<br />
● Valley forests. SW Guangxi.<br />
87
88<br />
<strong>RUTACEAE</strong><br />
18. LUVUNGA Buchanan-Hamilton ex Wight & Arnott, Prodr. Fl. Ind. Orient. 90. 1834.<br />
三叶藤橘属 san ye teng ju shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Woody climbers, with straight or recurved axillary spines, without rust-colored villosulous indumentum on terminal and axillary<br />
buds or young inflorescences. Leaves alternate, digitately 3-foliolate; leaflets petiolulate (occasional leaves 1-foliolate, including<br />
sometimes all of those on new shoots). Inflorescences terminal, axillary, or basal to leaves, paniculate or racemose. Flowers bisexual.<br />
Calyx cup-shaped, 3–5-lobed (often irregularly) or truncate. Petals 3–5, imbricate in bud. Stamens 6–10, equal in length, distinct or<br />
monadelphous. Disk annular, pulvinate, or columnar. Gynoecium 2–4-loculed, syncarpous; ovules 1 or 2 per locule; style to 4 × as long<br />
as ovary, deciduous in fruit. Fruit a berry, with mucilaginous pulp and without pulp vesicles; endocarp membranous or fleshy. Seeds<br />
with membranous seed coat; endosperm lacking; embryo straight; cotyledons elliptic, plano-convex; hypocotyl partly included<br />
between cotyledons.<br />
About ten species: S and SE Asia; one species in China.<br />
1. Luvunga scandens (Roxburgh) Buchanan-Hamilton ex<br />
Wight & Arnott, Prodr. Fl. Ind. Orient. 90. 1834.<br />
三叶藤 san ye teng<br />
Limonia scandens Roxburgh, Fl. Ind., ed. 1832, 2: 380.<br />
1832; Luvunga nitida Pierre.<br />
Heavy woody climbers. Leaves digitately 3-foliolate;<br />
petiole 2–9 cm; petiolules 3–10 mm; leaflet blades elliptic to<br />
obovate, 6–20 × 3–9 cm. Flowers ellipsoid in bud. Calyx 2.5–4<br />
mm, shallowly 4-lobed. Petals 4.6–10 mm. Stamens 8 or fewer.<br />
Fruit yellow, globose or obpyriform, 3–5 cm in diam., surface<br />
smooth, 1–4-seeded; outer part of pericarp (exocarp and<br />
mesocarp) thick. Seeds broadly ovoid, 2–3 cm. Fl. Mar–Apr, fr.<br />
Oct–Dec.<br />
Riverbanks, valleys of evergreen broad-leaved forests; below 600<br />
m. Guangdong, Hainan, S Yunnan [Cambodia, India, Laos, Malaysia,<br />
Myanmar, Thailand, Vietnam].<br />
19. PARAMIGNYA Wight, Ill. Ind. Bot. 1: 108. 1838.<br />
单叶藤橘属 dan ye teng ju shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Woody climbers or erect or scrambling shrubs. Branchlets with straight or recurved spines or rarely unarmed, without<br />
rust-colored villosulous indumentum on terminal and axillary buds or young inflorescences. Leaves alternate, 1-foliolate or simple;<br />
petiole 0.4–2.5 cm, usually bent and/or twisted and ± swollen apically. Flowers bisexual, axillary, solitary or in few-flowered fascicles.<br />
Sepals 4 or 5, connate at base or to ca. 2/3 their length. Petals 4 or 5, imbricate in bud. Stamens 8 or 10, equal in length, distinct. Disk<br />
cup-shaped, conic, or columnar. Gynoecium 3–5-loculed, syncarpous; ovules 1 or 2 per locule; style to 4 × as long as ovary, deciduous<br />
in fruit. Fruit a berry, with copious mucilaginous pulp and without pulp vesicles; endocarp fleshy. Seeds with membranous seed coat;<br />
endosperm lacking; embryo straight; cotyledons elliptic, plano-convex; hypocotyl partly included between cotyledons.<br />
About 15 species: S and SE Asia, N Australia; one species in China.<br />
1. Paramignya confertifolia Swingle, J. Arnold Arbor. 21: 17.<br />
1940.<br />
单叶藤橘 dan ye teng ju<br />
Woody climbers or erect or scrambling shrubs, with recurved<br />
spines 2–8 mm or unarmed. Leaves 1-foliolate or simple;<br />
petiole 5–12 mm; leaf blade ovate to elliptic to obovate, 5–12 ×<br />
2–4.5 cm, glabrous or abaxially grading from sparsely pubescent<br />
to ± densely pubescent on midvein, base rounded to obtuse,<br />
margin crenate toward apex or entire, apex acuminate to shortly<br />
so. Pedicel 3–5 mm. Flowers 5-merous, ellipsoid to obovoid in<br />
bud. Sepals 0.5–1.5 mm, pubescent and/or margin ciliate, per-<br />
sistent in fruit. Petals 6–10 mm, glabrous, deciduous in fruit.<br />
Stamens 10; filaments pubescent. Disk thickly columnar, ca. 1<br />
mm, glabrous, ± accrescent and forming a stipe in fruit. Ovary<br />
hirsute; style ca. 5 × as long as ovary, pubescent basally or<br />
glabrous. Fruit reportedly green, ± globose, larger ones 1.5–2 cm<br />
in diam., subtended by a 1.3–2 mm stipe. Fl. Jul–Sep, fr.<br />
Oct–Dec.<br />
Forests, streamsides, trailsides; 300–900 m. Guangdong, S<br />
Guangxi, Hainan, S Yunnan (Xishuangbanna) [N Vietnam].<br />
Plants mistakenly treated as Paramignya rectispinosa Craib by C.<br />
C. Huang (Fl. Reipubl. Popularis Sin. 43(2): 155. 1997) belong here.<br />
20. ATALANTIA Corrêa, Ann. Mus. Natl. Hist. Nat. 6: 383, 385, 386. 1805, nom. cons.<br />
Severinia Tenore ex Endlicher.<br />
酒饼簕属 jiu bing le shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley
<strong>RUTACEAE</strong><br />
Shrubs or trees, unarmed or with straight axillary spines, without rust-colored villosulous indumentum on terminal and axillary<br />
buds or young inflorescences. Leaves alternate, 1-foliolate or simple; petiole 2–13 mm, usually not bent, twisted, or swollen.<br />
Inflorescences terminal and/or axillary, fasciculate, racemose, or paniculate. Flowers bisexual. Sepals 3–5, connate at base to nearly<br />
their full length, or calyx splitting irregularly into 2 or 4 segments. Petals 3–5, imbricate in bud. Stamens 6–10, equal or alternately<br />
unequal in length, distinct, monadelphous, filaments coherent in phalanges, or filaments irregularly coherent. Disk annular,<br />
cup-shaped, or columnar. Gynoecium 2–5-loculed, syncarpous; ovules 1 or 2 per locule; style to 1.5 × as long as ovary, deciduous in<br />
fruit. Fruit a berry, usually with pulp vesicles and with or without mucilaginous pulp; endocarp membranous. Seeds with membranous<br />
seed coat; endosperm lacking; embryo straight; cotyledons elliptic, plano-convex; hypocotyl partly included between cotyledons.<br />
About 17 species: S and SE Asia; seven species (two endemic) in China.<br />
1a. Leaves simple; petiole not articulated with leaf blade.<br />
2a. Branchlets with spines ca. 4 cm or rarely unarmed; leaf blade 2–6(–10) × 1–5 cm, apex rounded or rarely<br />
narrowly obtuse, retuse to emarginate at tip; stamens 10; ripe fruit bluish black ................................................. 1. A. buxifolia<br />
2b. Branchlets unarmed or rarely with sparse short spines; leaf blade 11–21 × 3–6(–10) cm, apex acuminate,<br />
sometimes retuse at tip; stamens 8; ripe fruit red ........................................................................................ 2. A. kwangtungensis<br />
1b. Leaves 1-foliolate; petiole articulated with leaf blade.<br />
3a. Fruit ellipsoid to ovoid but pyriform when young, ca. 3 cm in diam. .................................................................. 7. A. fongkaica<br />
3b. Fruit globose or subglobose, 1.2–3 cm in diam.<br />
4a. Flowers 5–6 mm in diam.; petals 3–4 mm; fruit smooth ..................................................................................... 3. A. henryi<br />
4b. Flowers 8–15 mm in diam.; petals 6–10 mm; fruit scabrous.<br />
5a. Young branchlets and leaves glabrous .................................................................................................... 6. A. acuminata<br />
5b. Young branchlets and leaves with indumentum.<br />
6a. Leaflet blade apex acuminate; petiole 6–10 mm; fruit 1.5–2 cm or more in diam. ........................ 4. A. dasycarpa<br />
6b. Leaflet blade apex mucronate to obtuse; petiole 10–12 mm; fruit 2.5–3 cm in diam. ................. 5. A. guillauminii<br />
1. Atalantia buxifolia (Poiret) Oliver ex Bentham, Fl. Hongk.<br />
51. 1861.<br />
酒饼簕 jiu bing le<br />
Citrus buxifolia Poiret, Encycl. 4: 580. 1797; Dumula<br />
sinensis Loureiro ex B. A. Gomes; Limonia monophylla<br />
Loureiro (1790), not Linnaeus (1767); Severinia buxifolia<br />
(Poiret) Tenore; S. monophylla Tanaka.<br />
Shrubs ca. 2.5 m tall. Branches grayish brown; branchlets<br />
green, with spines or rarely unarmed; spines ca. 4 cm, apex red.<br />
Leaves simple; petiole 1–7 mm; leaf blade ovate, obovate, elliptic,<br />
or suborbicular, 2–6(–10) × 1–5 cm, leathery, with oil glands<br />
and an orange smell, midvein slightly ridged, secondary veins<br />
joined in an arched marginal vein, apex rounded to obtuse and<br />
retuse to emarginate at tip. Inflorescences axillary, fasciculate,<br />
(1- or) several flowered. Flowers 5-merous, subsessile. Calyx<br />
persistent. Petals white, 3–4 mm, with oil glands. Stamens 10;<br />
filaments white, distinct or sometimes a few basally connate.<br />
Style green, ± as long as ovary. Fruit bluish black when ripe,<br />
globose, slightly oblate, or subellipsoid, 0.8–1.2 cm in diam.,<br />
smooth, 1- or 2-seeded. Seeds with 1(or 2) embryos; cotyledons<br />
green, with many oil glands. Fl. May–Dec, fr. Sep–Dec. 2n = 36.<br />
Forests or thickets near ocean; below 300 m. S Fujian, S Guangdong,<br />
S Guangxi, Hainan, S Taiwan, Yunnan [Malaysia, Philippines,<br />
Vietnam].<br />
2. Atalantia kwangtungensis Merrill, Philipp. J. Sci. 21: 496.<br />
1922.<br />
广东酒饼簕 guang dong jiu bing le<br />
Atalantia hainanensis Merrill & Chun ex Swingle; A. roxburghiana<br />
J. D. Hooker var. kwangtungensis (Merrill) Swingle.<br />
Shrubs 1–2 m tall. Young branchlets green, slightly flat,<br />
ridged. Leaf blade elliptic, lanceolate, or rarely obovate-elliptic,<br />
11–21 × 3–6(–10) cm, pale green, abaxially grayish yellow<br />
when dry, oil glands pellucid and conspicuous, base cuneate,<br />
margin sinuate. Inflorescences axillary, 5 mm or less, with 3 to<br />
several flowers in a fasciclelike raceme. Flowers 4-merous.<br />
Petals white, 3–5 mm. Stamens 8, monadelphous or filaments<br />
coherent in phalanges. Style ± as long as ovary; stigma slightly<br />
clavate. Fruit red, ovoid, ellipsoid, or rarely globose, 1.3–1.8 ×<br />
0.7–1(–1.5) cm, smooth, with large oil glands, 1–3-seeded;<br />
exocarp ca. 0.5 mm thick. Seeds narrowly ovoid, 1–1.5 cm;<br />
embryo solitary. Fl. Jun–Jul, fr. Nov–Jan.<br />
● Moist and shady places in evergreen broad-leaved forests;<br />
100–400 m. W Guangdong, SE Guangxi, Hainan.<br />
3. Atalantia henryi (Swingle) C. C. Huang, Guihaia 11: 5.<br />
1991.<br />
薄皮酒饼簕 bo pi jiu bing le<br />
Atalantia racemosa Wight & Arnott var. henryi Swingle, J.<br />
Arnold Arbor. 21: 127. 1940.<br />
Trees usually 3–7 m tall. Branchlets brown, slightly flat,<br />
glabrous or very sparsely pilose; spines few, 2 mm or less.<br />
Leaves 1-foliolate; petiole 4–8 mm; leaflet blade broadly ovate,<br />
ovate-elliptic, or sublanceolate, 5–11 × 2.5–5 cm, thickly papery<br />
to leathery, oil glands slightly sunken when dry, midvein slightly<br />
ridged, secondary veins very numerous and joined in an arched<br />
marginal vein, apex shortly acuminate to obtuse and emarginate<br />
at tip. Inflorescences axillary, racemose, 1–3 cm, ca. 30-flowered.<br />
Pedicel 1–5 mm, with 1 bracteole. Sepals 4(or 5), 1–1.5<br />
mm, pubescent, basally connate, margin ciliate. Petals white, ca.<br />
4 mm. Stamens 8; filaments 1–2 mm, distinct or sometimes in<br />
basally coherent phalanges. Gynoecium nearly as long as filaments;<br />
ovary subglobose, with 4 large oil glands, 2- or 3-loculed,<br />
89
90<br />
with 1 ovule per locule; stigma capitate. Fruit reddish orange,<br />
globose, 1.5–2 cm in diam., smooth, oil glands inconspicuous.<br />
Seeds broadly ovoid, 1–1.4 cm; seed coat thinly crustose,<br />
smooth; embryo solitary. Fl. Apr–May, fr. Nov–Dec.<br />
Moist forests in limestone mountains; 300–1100 m. W Guangxi,<br />
Yunnan [NE Vietnam].<br />
4. Atalantia dasycarpa C. C. Huang, Acta Phytotax. Sin. 16(2):<br />
85. 1978.<br />
厚皮酒饼簕 hou pi jiu bing le<br />
Trees 2–5 m tall. Branchlets, leaves, and petioles with short<br />
crisped trichomes but glabrescent. Young branchlets slightly<br />
flat, with or without spines. Petiole 6–10 mm, adaxially narrowly<br />
canaliculate; leaflet blade narrowly elliptic to elliptic-<br />
lanceolate, 10–17 × 3–6 cm, dark green to yellowish green when<br />
dry, secondary veins numerous and conspicuous, base rounded,<br />
margin sinuate, apex acuminate and rarely emarginate at tip.<br />
Inflorescences axillary, racemose, 1–2 cm, 3–9-flowered;<br />
peduncle thinly pubescent. Flowers 4-merous. Pedicel thinly<br />
pubescent. Calyx lobes ovate-triangular, apex acute. Petals<br />
white, 6–8 mm. Stamens 8, slightly shorter than petals; filaments<br />
broad, distinct or sometimes cohering in phalanges, apex acute.<br />
Disk 1/4–1/3 as long as ovary. Ovary ellipsoid, with 4 large pale<br />
oil glands, 3- or 4-loculed, with 1 or 2 ovules per locule, apex<br />
narrow; style 4–5 mm. Fruit globose, 1.5–2 cm or more in diam.,<br />
oil glands numerous, large, and conspicuously concave when<br />
dry; exocarp ca. 1.5 mm thick. Seeds broadly ellipsoid, 10–12 ×<br />
6–9 mm, narrowed at both ends; embryo solitary. Fl. Apr–May,<br />
fr. Oct–Dec.<br />
Forests by rivers in valleys; 200–400 m. SW Guangxi [NE Vietnam].<br />
5. Atalantia guillauminii Swingle, Notul. Syst. (Paris) 2: 159.<br />
1911.<br />
大果酒饼簕 da guo jiu bing le<br />
Trees to 6 m tall. Young branchlets sparsely pubescent,<br />
unarmed or with few spines. Petiole 1–1.2 cm, stout, adaxially<br />
with short pubescence when young; leaflet blade narrowly<br />
elliptic, 14–18 × 5–6 cm, thickly papery, secondary veins<br />
numerous and conspicuous, base broadly cuneate, margin entire,<br />
apex narrowly obtuse to shortly acuminate. Ovary 3- or<br />
4-loculed, with 1 or 2 ovules per locule. Infructescences axillary,<br />
racemose, 1–1.5 cm, thinly pubescent. Fruit subglobose, 2.5–3<br />
cm in diam., with oil glands conspicuously sunken when dry;<br />
<strong>RUTACEAE</strong><br />
outer part of pericarp (exocarp and mesocarp) ca. 1 mm thick.<br />
Seeds broadly ellipsoid and slightly flat, 1.6–2.2 × ca. 1.5 cm;<br />
embryo solitary. Fr. Sep.<br />
Moist forests in valleys; 200–300 m. SE Yunnan (Hekou) [N<br />
Vietnam].<br />
6. Atalantia acuminata C. C. Huang, Guihaia 11: 6. 1991.<br />
尖叶酒饼簕 jian ye jiu bing le<br />
Trees 2–6 m tall, whole plant glabrous. Branchlets slender,<br />
with 2–5 mm spines. Petiole 3–6(–8) mm, adaxially shallowly<br />
canaliculate; leaflet blade lanceolate, 6–12 × 2–4 cm, secondary<br />
veins numerous and conspicuous, base narrowly cuneate, margin<br />
entire, apex acuminate. Inflorescences axillary, racemose,<br />
3–9-flowered. Flowers 1–1.5 cm in diam. Calyx lobes 4, broadly<br />
ovate, ca. 2 mm. Petals white, 8–10 mm. Stamens 8, slightly<br />
shorter than petals; filaments broad, distinct or sometimes<br />
cohering in phalanges, apex acute. Ovary ellipsoid, without large<br />
oil glands, 3- or 4-loculed, with 1 or 2 ovules per locule, apex<br />
narrow; style 4–5 mm; stigma capitate. Fruit globose, 1.2–1.5<br />
cm in diam., oil glands dense, large, and conspicuously concave<br />
when dry. Fl. May, fr. Oct.<br />
Forests and thickets on limestone mountains; 700–900 m. W<br />
Guangxi, SE Yunnan [N Vietnam].<br />
7. Atalantia fongkaica C. C. Huang, Guihaia 11: 5. 1991.<br />
开封酒饼簕 kai feng jiu bing le<br />
21. CITRUS Linnaeus, Sp. Pl. 2: 782. 1753.<br />
柑橘属 gan ju shu<br />
Zhang Dianxiang (张奠湘); David J. Mabberley<br />
Shrubs to 1 m tall. Branchlets green, slightly flat, glabrous,<br />
with very short sometimes slightly flat spines. Leaves 1-foliolate;<br />
petiole 4–7 mm, articulated with blade; leaflet blade variable<br />
in shape and size, some obovate and 7–9 × 3–4 cm with<br />
shortly acuminate apex, others oblanceolate to narrowly elliptic<br />
and 10–16 × 4–6 cm with acuminate apex, thickly papery to<br />
leathery, glabrous, abaxially grayish yellow to yellowish gray<br />
when dry, midvein ridged, secondary veins numerous, tertiary<br />
veins conspicuous, base broadly cuneate to obtuse, margin<br />
sinuate or apically with minute obtuse teeth. Flowers axillary,<br />
solitary. Ovary 5-loculed, with 1 ovule per locule. Fruit pyriform<br />
when young but ellipsoid to ovoid when mature, ca. 3.8 × 3 cm,<br />
smooth, with slightly convex oil glands when dry; outer part of<br />
pericarp (exocarp and mesocarp) ca. 2 mm thick. Seeds 1.5–1.8<br />
× 1–1.3 cm; seed coat smooth; embryo solitary; cotyledons<br />
green. Fr. Aug–Oct.<br />
● Forests by rivers in valleys; below 200 m. Guangdong (Fengkai).<br />
Aurantium Tournefort ex Miller; Citreum Tournefort ex Miller; ×Citrofortunella J. Ingram & H. E. Moore; ×Citroncirus J. Ingram<br />
& H. E. Moore; +Citroponcirus H. Wu et al.; Fortunella Swingle; Limon Tournefort ex Miller; Papeda Hasskarl; Poncirus<br />
Rafinesque; Pseudaegle Miquel; Sarcodactilis C. F. Gaertner.<br />
Shrubs or small trees, evergreen, rarely deciduous. Young branches often flat and angled, usually with solitary (rarely paired)<br />
spines at axils. Leaves 1-foliolate, rarely 3-foliolate or simple; petiole usually articulated with base of leaf blade, usually conspicuously<br />
winged; leaf blade subleathery to leathery, with dense pellucid fragrant oil dots, margin crenulate or rarely entire. Flowers axillary,
<strong>RUTACEAE</strong><br />
hermaphrodite or male, solitary or in small fascicles, fragrant. Calyx cup-shaped; lobes 3–5, subglabrous. Petals (3 or)4 or 5(–8), white<br />
or outside pinkish red, imbricate, thick. Stamens usually 4(–10) × as many as petals, free or basally coherent. Disk annular or short,<br />
with nectary glands. Ovary (3–)5–14(–18)-loculed, each locule with 2–8 or more ovules; stigma large. Fruit a berry (hesperidium) with<br />
sarcocarp segments of pulp vesicles and adaxially attached seeds. Seed coat smooth or ridged; embryo(s) 1 to many, like cotyledons<br />
milky white, green, or rarely yellowish, germination hypogeous.<br />
Between 20 and 25 species: E, S, and SE Asia, Australia, SW Pacific islands, with many cultivated taxa widely naturalized in warm countries; 11<br />
species and hybrid species (three endemic) native, naturalized, or extensively cultivated in China, plus five hybrid species cultivated to a limited extent.<br />
In China, many early hybridizations appear to have taken place, and many cultivated taxa have become naturalized (these are listed at the end of<br />
the generic account). For a discussion of the status of several taxa formerly considered species see Nicolosi et al. (Theor. Appl. Genetics 100:<br />
1155–1166. 2000) and Mabberley (Blumea 49: 481–498. 2004). Hybrids readily form between species, and as apomixis is common, such hybrids can be<br />
fixed as cultivars, with occasional outcrossings leading to yet more. Because these hybrids can thereby span, through backcrossing, the spectrum of<br />
variation between the original, probably geographically isolated, species, it is impossible to provide a key to cover all plants that may be found. The key<br />
here therefore covers the apparently wild species and some of the most common cultivar groups now referred to as hybrid taxa. Doubtful taxa are not<br />
included in the key, but descriptions of two are included at the end of the treatment.<br />
Because of the enormous worldwide economic importance of the genus, Citrus is treated more fully, particularly with regard to synonymy, than is<br />
the norm in this flora. The following treatment is the first floristic one to take account of current advances in the understanding of the genus.<br />
1a. Plants deciduous; leaves of mature plants 3(–5)-foliolate ............................................................................................ 1. C. trifoliata<br />
1b. Plants evergreen; leaves 1-foliolate or rarely simple.<br />
2a. Ovary with 3 or 4(–6) locules, each with 3 or 4 ovules ......................................................................................... 4. C. japonica<br />
2b. Ovary with (6 or)7–15 locules, each with many ovules.<br />
3a. Leaves with a winged petiole much more than half as long as leaf blade.<br />
4a. Leaf blade margin entire to finely crenulate, apex acuminate ................................................................ 2. C. cavaleriei<br />
4b. Leaf blade margin conspicuously crenulate, apex obtuse to subrounded and sometimes mucronate ......... 3. C. hystrix<br />
3b. Leaves with a winged petiole less than half as long as leaf blade or absent.<br />
5a. Petiole not winged; fruit pericarp thicker than sarcocarp ............................................................................ 5. C. medica<br />
5b. Petiole winged although sometimes only narrowly; fruit pericarp thinner than sarcocarp.<br />
6a. Cotyledons green.<br />
7a. Fruit oblong or at least with a marked apical mammilla; petals outside pinkish or reddish ......... 9. C. ×limon<br />
7b. Fruit globose, oblate, pyriform, or broadly obconic and without a marked apical mammilla;<br />
petals outside white or purplish.<br />
8a. Young branches, calyx lobes, and ovaries with trichomes; fruit 10 cm or more in diam. ..... 6. C. maxima<br />
8b. Young branches, calyx lobes, and ovaries glabrous; fruit to 10 cm in diam. but often<br />
much smaller ................................................................................................................... 10. C. ×aurantium<br />
6b. Cotyledons milky white.<br />
9a. Flowers solitary or in small fascicles; pericarp easily removed.<br />
10a. Fruit pale yellow, orange, red, or carmine; sarcocarp usually sweet ................................ 7. C. reticulata<br />
10b. Fruit pale yellow; sarcocarp acid and bitter ........................................................................ 11. C. ×junos<br />
9b. Flowers usually in fascicles; pericarp not easily removed.<br />
11a. Fruit greenish yellow, with an apical papilla; sarcocarp very acid ........................... 8. C. ×aurantiifolia<br />
11b. Fruit orange, reddish, or sometimes yellow, without an apical papilla; sarcocarp<br />
sour or sweet ................................................................................................................ 10. C. ×aurantium<br />
1. Citrus trifoliata Linnaeus, Sp. Pl., ed. 2, 2: 1101. 1763.<br />
枳 zhi<br />
Aegle sepiaria Candolle; Citrus trifolia Thunberg; C. trifoliata<br />
subf. monstrosa (T. Itô) Hiroe; C. trifoliata var. monstrosa<br />
T. Itô; C. triptera Desfontaines; Poncirus trifoliata (Linnaeus)<br />
Rafinesque; P. trifoliata var. monstrosa (T. Itô) Swingle;<br />
Pseudaegle sepiaria (Candolle) Miquel.<br />
Trees or treelets, 1–5 m tall. Branches green, flat, ridged<br />
when young; spines ca. 4 cm, base flat, apex rufous. Foliage<br />
spurs unarmed, developed from dormant buds on twigs of<br />
previous year, with very short internodes bearing 1–5 leaves.<br />
Leaves palmately 3(–5)-foliolate, in juveniles usually simple or<br />
1-foliolate; petiole narrowly winged; leaflet blades 2–5 × 1–3<br />
cm, central one as long or longer than laterals, midvein with<br />
short trichomes when young, margin finely crenulate or entire.<br />
Flowers solitary or paired, 3.5–8 cm in diam. Calyx lobes 5–7,<br />
basally connate. Petals (4 or)5(or 6), white, obovate, 1.5–3 cm,<br />
imbricate. Stamens usually 20; filaments of different lengths.<br />
Ovary 6–8-loculed, hairy; ovules 4–8, in 2 rows per locule; style<br />
short, thick; stigma clavate. Fruit dark yellow, subglobose to<br />
pyriform, usually 3–4.5 × 3.5–6 cm, with coarse ring-shaped<br />
furrows or sometimes smooth. Seeds 20–50, broadly ovoid,<br />
0.9–1.2 cm; embryo(s) solitary or several; seed coat smooth or<br />
with inconspicuous fine ridges. Fl. May–Jun, fr. Oct–Nov.<br />
● Anhui, Chongqing, S Gansu, N Guangdong, N Guangxi, Guizhou,<br />
Henan, Hubei, Hunan, Jiangsu, NW Jiangxi, S Shaanxi, Shandong,<br />
S Shanxi, Zhejiang.<br />
2. Citrus cavaleriei H. Léveillé ex Cavalerie, Bull. Géogr. Bot.<br />
21: 211. 1911.<br />
宜昌橙 yi chang cheng<br />
91
92<br />
Citrus ×aurantium Linnaeus subsp. ichangensis (Swingle)<br />
Guillaumin; C. hongheensis Y. M. Ye et al.; C. ichangensis<br />
Swingle; C. macrosperma T. C. Guo & Y. M. Ye.<br />
Trees or shrubs, 2–10 m tall. Branchlets subglabrous;<br />
spines straight, stout, smaller on flowering branches. Leafy<br />
petiole 1–3 × as long as blade, narrowly elliptic, 6–16 × 2.5–4<br />
cm, base cuneate, margin finely crenulate, apex rounded; leaf<br />
blades ovate-lanceolate, ca. 2(–8) × 0.7–1.5(–4.5) cm, margin<br />
entire to finely crenate, apex acuminate. Flowers solitary or to 9<br />
in fascicles, 3–3.5 cm in diam.; buds pale purplish red, broadly<br />
ellipsoid. Calyx lobes 5. Petals 4 or 5, white or pink, 1–1.8 ×<br />
0.5–0.8 cm. Stamens 16–30; filaments distinct or cohering in<br />
bundles, ciliate. Ovary pale green, subellipsoid; style ca. 6.5<br />
mm; stigma pale yellow, with fine shallow grooves. Fruit pale<br />
yellow, oblate, globose, or pyriform, usually 3–5 × 4–6 cm but<br />
when pyriform to 9–10 × 7–8(–12) cm, with narrow longitudinal<br />
grooves, oil dots large and conspicuously prominent, base<br />
rounded, apex rounded, dimpled, and with or without a papilla;<br />
pericarp to 2 cm thick but usually much less; sarcocarp in 7–13<br />
segments, yellowish white, very sour. Seeds 30 or more, subglobose<br />
to irregularly pyramidal, ca. 1.5 × 1.5 × 1.2 cm; seed<br />
coat yellowish white, chalaza dark brown, large, and covering<br />
almost half of coat; embryo(s) solitary to numerous; cotyledons<br />
milky white. Fl. Mar–Jun, fr. Oct–Dec.<br />
● Mountains, hills, valleys; below 2500 m. S Gansu, N Guangxi,<br />
Guizhou, W Hubei, NW and W Hunan, S Shaanxi, Sichuan, Yunnan.<br />
This species is a parent with Citrus ×aurantium of C. ×webberi<br />
Wester, and possibly a parent with C. reticulata of C. ×junos.<br />
3. Citrus hystrix Candolle, Cat. Pl. Horti Monsp. 19, 97. 1813.<br />
箭叶橙 jian ye cheng<br />
Citrus auraria Michel; C. echinata Saint-Lager; C. hyalopulpa<br />
Tanaka; C. kerrii (Swingle) Tanaka; C. macroptera Montrouzier<br />
var. kerrii Swingle; C. papeda Miquel; Fortunella<br />
sagittifolia F. M. Feng & P. I Mao; Papeda rumphii Hasskarl.<br />
Trees 3–6 m tall. Branchlets with spines. Leaves dark red<br />
when young; petiole winged, apex rounded to truncate; leaf<br />
blade ovate, 5–8 × 2.5–4.5 cm, 1–2.5 cm longer (rarely same<br />
length) and 0.5–1 cm wider than winged petiole, tertiary veins<br />
conspicuous, margin apically conspicuously and sparsely crenate,<br />
apex narrowly obtuse. Inflorescences with (1 or)3–5<br />
flowers; peduncle 1–5 mm. Flower buds globose. Calyx lobes 4<br />
or 5, broadly triangular, ca. 4 × 6 mm. Petals white but pinkish<br />
red outside, 7–10 mm. Stamens ca. 30; filaments distinct. Style<br />
short, thick. Fruit lemon yellow, ellipsoid to subglobose, 5–7 ×<br />
3–5 cm, slightly coarse or smooth, oil dots numerous and<br />
prominent, apex rounded; pericarp thick; sarcocarp in 11–13<br />
segments, very acidic and slightly bitter. Seeds numerous<br />
1.5–1.8 × 1–1.2 cm, ridged; embryo solitary; cotyledons milky<br />
white. Fl. Mar–May, fr. Nov–Dec.<br />
N Guangxi, Yunnan [Indonesia, Myanmar, New Guinea, Philippines,<br />
Thailand].<br />
Although apparently native to S China into SE Asia and Malesia,<br />
the natural distribution of this species is obscured by cultivation. Selected<br />
forms are cultivated throughout the warm parts of the world for their<br />
<strong>RUTACEAE</strong><br />
culinary (leaves) and medicinal (fruit) uses. All named taxa (save perhaps<br />
some from central Malesia) seem to have been based on cultivated<br />
plants as discussed by Mabberley (Gard. Bull. Singapore 54: 173–184.<br />
2002). Commonly seen in China are cultivated plants (the “lime leaves”<br />
of commerce) with the following characteristics: leaf blade broadly<br />
elliptic, apex obtuse to rounded; fruit subglobose, ca. 4 × 3.5 cm, smooth,<br />
apex with a papilla; pericarp ca. 2 mm thick; sarcocarp in 6 or 7 segments,<br />
6–8-seeded but 1 or 2 seeds undeveloped; seeds pyramidal,<br />
1.5–1.8 × 1–1.4 cm, 0.8–1.2 mm thick, with alveolate ridges.<br />
4. Citrus japonica Thunberg, Nova Acta Regiae Soc. Sci.<br />
Upsal. 3: 208. 1780.<br />
金柑 jin gan<br />
Atalantia hindsii (Champion ex Bentham) Oliver ex Bentham;<br />
Citrus ×aurantium Linnaeus var. globifera Engler; C.<br />
×aurantium subsp. japonica (Thunberg) Engler; C. ×aurantium<br />
var. japonica (Thunberg) Hooker; C. ×aurantium subvar. madurensis<br />
(Loureiro) Engler; C. ×aurantium subvar. margarita<br />
(Loureiro) Engler; C. ×aurantium var. oliviformis Risso ex Loiseleur;<br />
C. ×aurantium subvar. spinosa Siebold & Zuccarini ex<br />
Engler; C. hindsii (Champion ex Bentham) Govaerts; C. inermis<br />
Roxburgh; C. japonica subf. crassifolia (Swingle) Hiroe; C.<br />
japonica subf. hindsii (Champion ex Bentham) Hiroe; C.<br />
japonica var. madurensis (Loureiro) Guillaumin; C. japonica<br />
subf. margarita (Loureiro) Hiroe; C. japonica var. margarita<br />
(Loureiro) Guillaumin; C. kinokuni Tanaka; C. madurensis<br />
Loureiro; C. margarita Loureiro; C. ×nobilis Loureiro var. inermis<br />
(Roxburgh) Sagot; Fortunella chintou (Swingle) C. C.<br />
Huang; F. crassifolia Swingle; F. hindsii (Champion ex Bentham)<br />
Swingle; F. hindsii var. chintou Swingle; F. japonica<br />
(Thunberg) Swingle; F. margarita (Loureiro) Swingle; F. obovata<br />
Tanaka; F. venosa (Champion ex Bentham) C. C. Huang;<br />
Sclerostylis hindsii Champion ex Bentham; S. venosa Champion<br />
ex Bentham.<br />
Trees to 5 m tall, d.b.h. to 20 cm. Branchlets numerous;<br />
spines variable, to 5 cm on young growth but some only a few<br />
mm on flowering shoots. Leaves 1-foliolate or sometimes mixed<br />
with simple leaves; petiole 6–9 mm, narrowly winged; leaf blade<br />
elliptic to obovate-elliptic, 4–6 × 1.5–3 cm, base rounded to<br />
broadly cuneate, margin dentate near apex or rarely entire, apex<br />
rounded and rarely mucronate. Flowers solitary or fascicled,<br />
subsessile. Calyx 4- or 5-lobed. Petals 5, ca. 5 mm or less. Stamens<br />
ca. 20; filaments cohering into 4 or 5 bundles. Ovary as<br />
long as style, 3- or 4-loculed, with 3 or 4 ovules per locule. Fruit<br />
bright orange to red, globose to slightly oblate, 9–10 mm in<br />
diam., smooth, 3- or 4-seeded; pericarp sweet and edible; sarcocarp<br />
acidic. Seeds broadly ovoid, apex mucronate; seed coat<br />
smooth; embryos at least sometimes numerous; cotyledons<br />
green. Fl. Apr–May, fr. Oct–Dec. 2n = 18*, 20*, 36*.<br />
● Evergreen broad-leaved forests; 600–1000 m. S Anhui, Fujian,<br />
Guangdong, SE Guangxi, Hainan, Hunan, Jiangxi, Zhejiang.<br />
This appears to be the truly wild kumquat from which cultivars<br />
with greatly increased fruit-sizes of different shapes have been selected.<br />
However, recent field studies in China show a considerable amount of<br />
variation within some wild populations of what is treated here as Citrus<br />
japonica. Future comprehensive field and cytological studies throughout
the complex may show that geographical subspecies or cytological races<br />
of the wild form could be formally recognized.<br />
None of the cultivars, formerly recognized as species, has been<br />
found in truly “natural” habitats. They are cultivated on a large scale in S<br />
China and have sometimes become naturalized. Citrus japonica and C.<br />
reticulata are parents of C. ×microcarpa. Many of the above synonyms<br />
can perhaps best be referred to cultivar groups, corresponding to the<br />
subformae of Hiroe. Commonly seen cultivar groups in China have the<br />
following characteristics, but some cultivars are intermediate.<br />
Round Kumquat Group<br />
Trees 2–5 m tall. Petiole 6–10 mm or rarely longer, wings<br />
narrow; leaf blade ovate-elliptic to elliptic-lanceolate, 4–8 ×<br />
1.5–3.5 cm, base broadly cuneate, apex obtuse and sometimes<br />
mucronate. Flowers 1–3 per fascicle; peduncle 6 mm or less.<br />
Petals 6–8 mm. Stamens 15–25. Ovary globose, ± as long as<br />
style, 4–6-loculed. Fruit orangish yellow to orangish red, globose,<br />
1.5–2.5 cm in diam., 2–5-seeded; pericarp 1.5–2 mm thick,<br />
sweet. Seeds ovoid, base rounded; embryo solitary. Fl. Apr–<br />
May, fr. Nov–Feb.<br />
Oval Kumquat Group<br />
Trees to 3 m tall. Petiole ca. 1.2 cm, wings very narrow;<br />
leaf blade ovate-lanceolate to long elliptic, 5–11 × 2–4 cm, base<br />
broadly cuneate to nearly rounded, apex obtuse to slightly acute.<br />
Flowers 1–3 per fascicle; peduncle 3–5 mm. Petals 6–8 mm.<br />
Stamens 20–25. Ovary elliptic; style usually ca. 1.5 × as long as<br />
ovary, slender; stigma slightly clavate. Fruit orangish yellow to<br />
orangish red, ellipsoid to ovoid-ellipsoid, 2–3.5 cm in diam., oil<br />
dots usually slightly expanded, 2–5-seeded; pericarp ca. 2 mm<br />
thick, sweet; sarcocarp in 4 or 5 segments, acidic. Seeds ovoid,<br />
apex acute; embryo solitary or rarely numerous. Fl. Mar–May,<br />
fr. Oct–Dec.<br />
5. Citrus medica Linnaeus, Sp. Pl. 2: 782. 1753.<br />
香橼 xiang yuan<br />
Aurantium medicum (Linnaeus) M. Gómez; Citreum vulgare<br />
Tournefort ex Miller; Citrus alata (Yu. Tanaka) Tanaka; C.<br />
×aurantium Linnaeus subvar. amilbed Engler; C. ×aurantium<br />
subvar. chakotra Engler; C. cedra Link; C. cedrata Rafinesque;<br />
C. fragrans Salisbury; ?C. kwangsiensis Hu; C. ×limon (Linnaeus)<br />
Osbeck var. digitata Risso; C. medica var. alata Yu.<br />
Tanaka; C. medica var. digitata Risso; C. medica var. ethrog<br />
Engler; C. medica f. monstrosa Guillaumin; C. medica var.<br />
proper J. D. Hooker; C. medica var. sarcodactylis (Hoola van<br />
Nooten) Swingle; C. odorata Roussel; C. sarcodactylis Hoola<br />
van Nooten; C. tuberosa Miller; Sarcodactilis helicteroides C. F.<br />
Gaertner.<br />
Shrubs or small trees. Branches, leaf buds, and flower buds<br />
purplish when young. Branches with ca. 4 cm spines. Leaves<br />
simple or rarely 1-foliolate; petiole short, not winged; leaf blade<br />
elliptic to ovate-elliptic, 6–12 × 3–6 cm or larger, margin serrate,<br />
apex rounded, obtuse, or rarely mucronate. Inflorescences axillary,<br />
ca. 12-flowered or sometimes flowers solitary. Flowers<br />
bisexual or sometimes male by ± complete abortion of pistil.<br />
Petals 5, 1.5–2 cm. Stamens 30–50. Ovary cylindric; style long<br />
and thick; stigma clavate. Fruit pale yellow, elliptic to sub-<br />
<strong>RUTACEAE</strong><br />
globose, to 2 kg, surface coarse; pericarp white to pale yellow<br />
and soft within, thicker than sarcocarp, removed with difficulty;<br />
sarcocarp with 10–15 segments, colorless, nearly pellucid to pale<br />
milky yellow, acidic to slightly sweet, fragrant. Seeds small;<br />
seed coat smooth; embryo(s) solitary to several; cotyledons<br />
milky white. Fl. Apr–May, fr. Oct–Nov. 2n = 18, 20.<br />
Cultivated and sometimes naturalized. Guangxi, SW Guizhou,<br />
Hainan, Sichuan, E Xizang, Yunnan [native to NE India and possibly<br />
Myanmar].<br />
This species is a parent with Citrus ×aurantium of C. ×limon and<br />
with ?C. hystrix of C. ×aurantiifolia.<br />
The Buddha-hand Citron (佛手 fo shou), with separated segments<br />
± surrounded by pericarp, is best treated as a cultivar, correctly Citrus<br />
medica ‘Fingered.’<br />
6. Citrus maxima (Burman) Merrill, Interpr. Herb. Amboin.<br />
296. 1917.<br />
柚 you<br />
Aurantium maximum Burman in Rumphius & Burman,<br />
Herb. Amboin. Auctuar. 7: Index [16]. 1755; A. decumanum<br />
(Linnaeus) Miller; Citrus ×aurantium Linnaeus subsp. decumana<br />
(Linnaeus) Tanaka; C. ×aurantium var. decumana Linnaeus;<br />
C. ×aurantium f. grandis (Linnaeus) Hiroe; C. ×aurantium<br />
var. grandis Linnaeus; C. costata Rafinesque; C. decumana<br />
(Linnaeus) Linnaeus; C. grandis (Linnaeus) Osbeck; C. grandis<br />
var. pyriformis (Hasskarl) Karaya; C. grandis var. sabon (Siebold<br />
ex Hayata) Hayata; ?C. kwangsiensis Hu; C. medica Linnaeus<br />
subf. pyriformis (Hasskarl) Hiroe; C. obovoidea Yu. Tanaka;<br />
C. pampelmos Risso; C. pompelmos Risso; C. pyriformis<br />
Hasskarl; C. sabon Siebold ex Hayata.<br />
Trees. Young branches, abaxial surface of leaves, peduncles,<br />
and ovaries pilose. Branches usually purplish, flat with<br />
ridges when young. Petiole 2–4 × 0.5–3 cm or less, winged; leaf<br />
blade broadly ovate or elliptic, 9–16 × 4–8 cm or larger, thick,<br />
dark green, base rounded, apex rounded to obtuse and sometimes<br />
mucronate. Flowers solitary or in racemes; flower buds<br />
purplish or rarely milky white. Calyx 3–5-lobed. Petals 1.5–2<br />
cm. Stamens 25–35, some undeveloped. Style long and thick.<br />
Fruit pale yellow and yellowish green, globose, oblate, pyriform,<br />
or broadly obconic, usually more than 10 cm in diam., with large<br />
prominent oil dots, to 200-seeded or seedless; pericarp spongy;<br />
sarcocarp with 10–15(–19) segments, white, pink, reddish, or<br />
rarely milky yellow. Seeds irregularly shaped, with conspicuous<br />
ridges, undeveloped seeds numerous; embryo solitary; cotyledons<br />
milky white. Fl. Apr–May, fr. Sep–Dec. 2n = 18, 36.<br />
Cultivated and naturalized in S China [probably native to SE Asia].<br />
Pomelo or shaddock includes cultivars with round to obovoid fruit<br />
much favored for festival decoration as well as eating. No truly wild<br />
plants (presumably with much smaller fruit) have been seen. Citrus<br />
maxima is a parent with C. reticulata of C. ×aurantium.<br />
7. Citrus reticulata Blanco, Fl. Filip. 610. 1837.<br />
柑橘 gan ju<br />
Citrus ×aurantium Linnaeus f. deliciosa (Tenore) Hiroe; C.<br />
×aurantium var. tachibana Makino; C. daoxianensis S. W. He<br />
93
94<br />
& G. F. Liu; C. deliciosa Tenore; C. depressa Hayata; C.<br />
erythrosa Yu. Tanaka; C. madurensis Loureiro var. deliciosa<br />
(Tenore) Sagot; C. mangshanensis S. W. He & G. F. Liu; C.<br />
×nobilis Loureiro subf. deliciosa (Tenore) Hiroe; C. ×nobilis<br />
var. deliciosa (Tenore) Guillaumin; C. ×nobilis subf. erythrosa<br />
(Yu. Tanaka) Hiroe; C. ×nobilis var. major Ker Gawler; C.<br />
×nobilis var. ponki Hayata; C. ×nobilis subf. reticulata (Blanco)<br />
Hiroe; C. ×nobilis var. spontanea Ito; C. ×nobilis subf. succosa<br />
(Tanaka) Hiroe; C. ×nobilis var. sunki Hayata; C. ×nobilis<br />
subf. tachibana (Makino) Hiroe; C. ×nobilis var. tachibana<br />
(Makino) Ito; C. ×nobilis subf. unshiu (Marcowicz) Hiroe; C.<br />
×nobilis var. unshiu (Marcowicz) Tanaka ex Swingle; C. ×nobilis<br />
var. vangasy (Bojer) Guillaumin; C. ponki Yu. Tanaka; C.<br />
poonensis Yu. Tanaka; C. reticulata var. austera Swingle; C.<br />
reticulata subsp. deliciosa (Tenore) Rivera et al.; C. reticulata<br />
subsp. tachibana (Tanaka) Rivera et al.; C. reticulata subsp.<br />
unshiu (Marcowicz) Rivera et al.; C. succosa Tanaka; C. suhuiensis<br />
Hayata; C. sunki Tanaka; C. tachibana (Makino) Yu. Tanaka;<br />
C. tachibana subf. depressa (Hayata) Hiroe; C. tachibana<br />
subf. ponki (Hayata) Hiroe; C. tachibana subf. suhuiensis (Hayata)<br />
Hiroe; C. tachibana subf. sunki (Hayata) Hiroe; C. tangerina<br />
Yu. Tanaka; C. tankan Hayata; C. unshiu Marcowicz; C.<br />
vangasy Bojer.<br />
Small trees. Branchlets numerous, with few spines. Leaves<br />
1-foliolate; leaf blade lanceolate, elliptic, or broadly ovate, basal<br />
articulated part to leaf blade usually narrow or only a remnant,<br />
midvein furcate near apex, margin apically obtusely crenulate or<br />
rarely entire, apex emarginate. Flowers solitary to 3 in a fascicle.<br />
Calyx irregularly 3–5-lobed. Petals usually 1.5 cm or less. Sta-<br />
8. Citrus ×aurantiifolia (Christmann) Swingle, J. Wash. Acad.<br />
Sci. 3: 465. 1913 [“aurantifolia”], pro sp.<br />
来檬 lai meng<br />
Limonia ×aurantiifolia Christmann, Vollst. Pflanzensyst.<br />
1: 618. 1777 [“aurantifolia”], pro sp.; Citrus ×acida Persoon;<br />
C. ×aurantiifolia subsp. murgetana Garcia Lidón et al.; C. ×aurantium<br />
Linnaeus subsp. aurantiifolia (Christmann) Guillaumin;<br />
C. ×aurantium var. proper Guillaumin; C. hystrix Candolle<br />
subsp. acida Engler; C. ×javanica Blume; C. ×lima Macfadyen;<br />
C. medica Linnaeus subf. aurantiifolia (Christmann) Hiroe.<br />
Small trees. Branchlets numerous and irregular, with short<br />
stout spines. Leaves slightly stiff with a short, conspicuous<br />
petiole; leaf blade broadly ovate to elliptic, 5–8 × 2–4 cm, base<br />
rounded, margin crenulate, apex obtuse and sometimes mucronate.<br />
Inflorescences with ca. 7 flowers or rarely flowers solitary.<br />
Calyx cup-shaped; lobes 4 or 5. Petals (4 or)5, white, 1–1.2 cm,<br />
rather thick. Stamens 20–25. Ovary globose; style short, ± as<br />
long as stigma; stigma large. Fruit greenish yellow, globose,<br />
ellipsoid, or obovoid, usually 4–5 cm in diam., smooth, with<br />
prominent oil glands, apex with a papilla; pericarp thin; sarcocarp<br />
with 9–12 segments, very acidic. Seeds few, ovoid; seed<br />
coat smooth; cotyledons milky white. Fl. Apr–May, fr. Sep–<br />
Dec. 2n = 18, 27.<br />
Trailsides; low elevations. Occasionally naturalized in Yunnan.<br />
<strong>RUTACEAE</strong><br />
Hybrid taxa sometimes naturalized in China<br />
mens 20–25. Style long, slender; stigma clavate. Fruit pale yellow,<br />
orange, red, or carmine, oblate to subglobose, smooth or<br />
coarse; pericarp very thin to thick, easily removed; sarcocarp<br />
with 7–14 segments or rarely more, sweet to acidic and sometimes<br />
bitter, with few to many seeds or rarely seedless; pulp<br />
vesicles plump, short, rarely slender and long. Seeds usually<br />
ovoid, base rounded, apex narrow and acute; embryos numerous,<br />
rarely solitary; cotyledons dark green, pale green, or milky<br />
white; chalaza purple. Fl. Apr–May, fr. Oct–Dec. 2n = 18, 27, 36.<br />
Extensively cultivated in China S of the Qin Ling [possibly native<br />
to SE China and/or S Japan (see below)].<br />
Tangerine or mandarin orange is the parent with Citrus maxima of<br />
C. ×aurantium, with C. japonica of C. ×microcarpa, and possibly with<br />
C. cavaleriei of C. ×junos. The recently recognized subspecies are perhaps<br />
better considered as cultivar groups to which most of the synonyms<br />
would be referred. However, some names in the synonymy may be<br />
referable to those cultivars of C. ×aurantium that are repeated backcrosses<br />
with C. reticulata. Trees referred to C. tachibana may represent<br />
true wild forms and have the following characteristics:<br />
Trees to 3 m tall. Branchlets numerous, with short spines. Petiole<br />
8–10 mm, very narrowly winged; leaf blade elliptic, 6–7 × 3.5–4 cm,<br />
secondary veins inconspicuous, base broadly cuneate, margin crenulate,<br />
apex narrow, obtuse, and conspicuously emarginate. Flowers solitary,<br />
1.2–1.4 cm in diam.; flower buds subglobose. Pedicel ca. 2 mm. Petals<br />
white. Stamens ca. 20. Fruit yellow, oblate, 2–2.5 × 2.5–3.4 cm, smooth;<br />
pericarp 1.5–2 mm thick; sarcocarp with 7–9 segments, yellow, very<br />
acidic and bitter, 5- or 6-seeded. Seeds broadly ovoid, ca. 1 cm; seed coat<br />
smooth; embryos numerous; cotyledons greenish.<br />
Hillside forests; low elevations. Taiwan [Japan (Ryukyu Islands)].<br />
As a common name, lime covers a number of different Citrus<br />
species and hybrid species. Those referred to as C. ×aurantiifolia are<br />
hybrids involving C. medica and possibly C. hystrix.<br />
9. Citrus ×limon (Linnaeus) Osbeck, Reis Ostindien China,<br />
250. 1765 [“limonia”], pro sp.<br />
柠檬 ning meng<br />
Citrus medica Linnaeus var. limon Linnaeus, Sp. Pl. 2: 782.<br />
1753; C. ×aurantium Linnaeus subsp. bergamia (Risso) Engler;<br />
C. ×aurantium var. bergamia (Risso) Brandis; C. ×aurantium<br />
var. mellarosa (Risso) Engler; C. ×bergamia Risso; C. ×bergamia<br />
subsp. mellarosa (Risso) Rivera et al.; C. ×bergamota<br />
Rafinesque; C. ×limodulcis Rivera et al.; C. ×limonum Risso; C.<br />
medica Linnaeus f. limon (Linnaeus) Hiroe; C. medica subsp.<br />
limonum (Risso) J. D. Hooker; C. medica var. limonum (Risso)<br />
Brandis; C. ×mellarosa Risso; C. ×meyeri Yu. Tanaka; Limon<br />
×vulgaris Ferrarius ex Miller (1754), not C. ×vulgaris Risso<br />
(1813).<br />
Small trees. Branches ± spiny. Young leaves and flower<br />
buds reddish purple. Leaf blade ovate to elliptic, 8–14 × 4–6 cm,<br />
margin conspicuously crenulate, apex usually mucronate. Flowers<br />
solitary or several in fascicles. Flowers bisexual or male by ±<br />
complete abortion of pistil. Calyx cup-shaped; lobes 4 or 5.<br />
Petals 1.5–2 cm, outside purplish, inside white. Stamens 20–25<br />
or more. Ovary subcylindric or barrel-shaped; stigma clavate.
Fruit yellow, ellipsoid to ovoid, narrowed at both ends, surface<br />
usually coarse and lemon scented, apex usually with a mammilla;<br />
pericarp thick, difficult to remove; sarcocarp in 8–11 segments,<br />
pale yellow, acidic. Seeds ovoid, small, apex acute; seed<br />
coat smooth; embryo usually solitary but sometimes numerous;<br />
cotyledons milky white. Fl. Apr–May, fr. Sep–Nov. 2n = 18, 36.<br />
Cultivated and sometimes naturalized in S China.<br />
The parents of the lemon are Citrus ×aurantium and C. medica.<br />
Backcrosses with either parent give a range of sour to sweet lemons<br />
which go under various names and perhaps would best be considered as<br />
forming cultivar groups, e.g., Bergamot Group. The rough lemon, C.<br />
×taitensis Risso (C. ×aurantium subsp. jambhiri Engler; C. ×jambhiri<br />
Lushington; C. ×sinensis subsp. jambhiri (Lushington) Engler), sometimes<br />
included here, is perhaps C. medica × C. reticulata.<br />
The name “Citrus limonia” has been misapplied to other Citrus<br />
taxa.<br />
10. Citrus ×aurantium Linnaeus, Sp. Pl. 2: 782. 1753, pro sp.<br />
酸橙 suan cheng<br />
Aurantium ×acre Miller; A. ×corniculatum Miller; A.<br />
×distortum Miller; A. ×humile Miller; A. ×myrtifolium Descourtilz;<br />
A. ×sinense Miller; A. ×vulgare (Risso) M. Gómez;<br />
Citrus ×amara Link; C. ×aurantium subsp. amara Engler; C.<br />
×aurantium var. bigaradia (Loiseleur) Brandis; C. ×aurantium<br />
var. crassa Risso; C. ×aurantium var. daidai Makino; C.<br />
×aurantium var. dulcis Hayne; C. ×aurantium var. fetifera Risso;<br />
C. ×aurantium var. lusitanica Risso; C. ×aurantium var.<br />
myrtifolia Ker Gawler; C. ×aurantium subf. nobilis (Loureiro)<br />
Hiroe; C. ×aurantium var. sanguinea Engler; C. ×aurantium<br />
subf. sinensis (Linnaeus) Hiroe; C. ×aurantium subsp. sinensis<br />
(Linnaeus) Engler; C. ×aurantium var. sinensis Linnaeus; C.<br />
×aurantium subsp. suntara Engler; C. ×aurantium var. vulgaris<br />
(Risso) Risso & Poiteau; C. ×aurata Risso; C. ×bigaradia<br />
Loiseleur; C. ×changshan-huyou Y. B. Chang; C. ×communis<br />
Poiteau & Turpin; C. decumana (Linnaeus) Linnaeus var.<br />
paradisi (Macfadyen) H. H. A. Nicholls; C. ×dulcis Persoon;<br />
C. ×florida Salisbury; C. ×humilis (Miller) Poiret; C. maxima<br />
(Burman) Merrill var. uvacarpa Merrill; C. ×myrtifolia (Ker<br />
Gawler) Rafinesque; C. ×paradisi Macfadyen; C. ×sinensis<br />
(Linnaeus) Osbeck; C. ×sinensis var. brassiliensis Tanaka; C.<br />
×sinensis subsp. crassa (Risso) Rivera et al.; C. ×sinensis<br />
subsp. fetifera (Risso) Rivera et al.; C. ×sinensis subsp. lusitanica<br />
(Risso) Rivera et al.; C. ×sinensis var. sanguinea (Engler)<br />
Engler; C. ×sinensis var. sekkan Hayata; C. ×sinensis<br />
subsp. suntara (Engler) Engler; C. ×taiwanica Tanaka & Shimada;<br />
C. ×tangelo Ingram & H. E. Moore; C. ×vulgaris Risso.<br />
Small trees. Branches with spines up to ca. 8 cm. Petiole<br />
obovate, 1–3 × 0.6–1.5 cm, base narrow; leaf blades dark green,<br />
thick. Inflorescences racemes, with few flowers or flowers solitary.<br />
Flowers perfect or male by ± complete abortion of pistil;<br />
buds ellipsoid to subglobose. Calyx lobes 4 or 5. Petals 2–3.5<br />
mm in diam. Stamens 20–25, usually basally connate into bundles.<br />
Fruit orange to reddish, globose to oblate, surface coarse;<br />
pericarp thick, sometimes difficult to remove; sarcocarp with<br />
10–13 segments, acidic and sweet or sometimes bitter. Seeds<br />
numerous, large, with ridges; embryo(s) solitary to numerous;<br />
cotyledons milky white. Fl. Apr–May, fr. Sep–Dec. 2n = 18.<br />
<strong>RUTACEAE</strong><br />
Cultivated and sometimes naturalized in most of China S of the Qin<br />
Ling.<br />
Oranges and grapefruit are Citrus maxima × C. reticulata and the<br />
backcrosses with the parental species. Many of these hybrids arose in<br />
China, although others were synthesized, especially in the U.S.A., and<br />
introduced in China. The cultivars can be arranged in groups: Sour<br />
Orange Group (the sour or bitter orange most like the original cross),<br />
Sweet Orange Group (the commercially most important being<br />
backcrosses with C. reticulata), and Grapefruit Group (representing<br />
backcrosses with C. maxima and first being made in the Caribbean).<br />
Sweet Orange Group<br />
Petiole long and narrow; leaf blade ovate, ovate-elliptic, or<br />
rarely lanceolate, 6–10 × 3–5 cm or larger. Calyx lobes 3–5.<br />
Petals white or rarely purplish, 1.2–1.5 cm. Style stout; stigma<br />
large. Fruit orangish yellow to orangish red, globose, depressed<br />
globose, or ellipsoid; sarcocarp with 9–12 segments, yellow,<br />
orange, or purplish, sweet or slightly acidic. Seeds few or absent;<br />
seed coat slightly ridged; embryos numerous; cotyledons milky<br />
white. Fl. Mar–Jun, fr. Oct–Dec but some cultivars Feb–Apr. 2n<br />
= 18, 27, 36, 45.<br />
Below 1500 m. Cultivated S of the Qin Ling, as far NW as SE Gansu<br />
and as far SW as SE Xizang.<br />
Grapefruit Group<br />
Branches glabrous. Leaves similar to those of Citrus<br />
maxima but leaf blade smaller and narrower, midvein ciliate.<br />
Flowers smaller than those of C. maxima. Calyx lobes glabrous.<br />
Fruit yellow, depressed globose to globose, smaller than those of<br />
C. maxima; pericarp thin; sarcocarp with 12–15 segments, yellowish<br />
white or pink, tender, juicy, slightly fragrant and acidic.<br />
Seeds few or absent; embryos numerous. Fr. Oct–Nov. 2n = 18,<br />
20, 27, 36.<br />
11. Citrus ×junos Siebold ex Tanaka, Sieb. Sens. Tor. Hy-akun.<br />
Kin. Ronbunshu, 65. 1924.<br />
香橙 xiang cheng<br />
Citrus ×aurantium Linnaeus subsp. junos (Siebold ex Tanaka)<br />
Makino; C. ×hsiangyuan Tanaka; C. medica subf. junos<br />
(Siebold ex Tanaka) Hiroe; ?C. sechen Kokaya; C. sechen subsp.<br />
sjanshen Kokaya; ?C. ×wilsonii Tanaka.<br />
Small trees. Branches often with long stout spines;<br />
branchlets, leaves, and petioles sparsely pubescent when young.<br />
Petiole obovate-elliptic, 1–2.5 × 0.4–1.5 cm, base cuneate, apex<br />
rounded to obtuse; leaf blade ovate to lanceolate, 2.5–8 × 1–4<br />
cm, thickly papery, base rounded to obtuse, margin apically<br />
finely dentate or rarely entire, apex acuminate, mucronate, or<br />
often obtuse and emarginate. Flowers solitary, shortly pedicellate.<br />
Calyx cup-shaped; lobes 4 or 5, broadly ovate, apex acute.<br />
Petals white, sometimes outside purplish, 1–1.3 cm. Stamens<br />
20–25. Style ca. 2 × as long as ovary. Fruit pale yellow, oblate to<br />
nearly pyriform, 4–8 cm in diam., surface coarse and with large<br />
oil dots, apex grooved; pericarp 2–4 mm thick, easily removed;<br />
sarcocarp with 9–11 segments, pale yellowish white, very acidic<br />
and bitter. Seeds ca. 40, broadly ovoid, smooth; cotyledons<br />
milky white; embryo(s) solitary to numerous. Fl. Apr–May, fr.<br />
Oct–Nov.<br />
95
96<br />
Cultivated and sometimes naturalized. S Anhui, S Gansu, Guizhou,<br />
Hubei, Hunan, S Jiangsu, S Shaanxi, Sichuan, Yunnan, Zhejiang.<br />
Citrus ×microcarpa Bunge, Enum. Pl. China Bor. 10. 1833.<br />
×Citrofortunella microcarpa (Bunge) Wijnands; ×C. mitis<br />
(Blanco) J. Ingram & H. E. Moore; Citrus ×mitis Blanco.<br />
Calamondin or calamansi is hybrid between Citrus reticulata and<br />
C. japonica.<br />
Citrus ×latifolia (Tanaka ex Yu. Tanaka) Tanaka, Kwaju Bunruigaku<br />
[Systematic Pomology], 140. 1951.<br />
Citrus ×aurantiifolia (Christmann) Swingle var. latifolia<br />
Tanaka ex Yu. Tanaka, Iconogr. Jap. Citrus Fruits 1: 57. 1946;<br />
C. ×aurantiifolia subsp. latifolia (Tanaka ex Yu. Tanaka) S.<br />
Ríos et al.<br />
Seedless lime is a hybrid between Citrus ×aurantiifolia and possibly<br />
C. ×limon.<br />
Citrus ×floridana (J. Ingram & H. E. Moore) Mabberley, Telopea<br />
7: 337. 1998.<br />
Citrus ×polytrifolia Govaerts, World Checkl. Seed Pl. 3(1): 15.<br />
1999.<br />
富民枳 fu min zhi<br />
Poncirus ×polyandra S. Q. Ding et al., Acta Bot. Yunnan.<br />
6: 292. 1984, not Citrus polyandra Tanaka (1928).<br />
Trees to 2.5 m tall, evergreen. Young branches green, triangular<br />
but becoming cylindric with age. Leaves palmately<br />
3-foliolate; petiole 1–2 cm, narrowly winged; lateral leaflet<br />
blades 2.7–3.8 × 0.7–1.7 cm; central leaflet blade 3.5–5 ×<br />
0.9–1.4 cm, dark green, base cuneate, margin sinuate crenulate,<br />
apex mucronate. Flower solitary, 6.4–7 cm in diam. Pedicel 3–7<br />
cm, ca. 2 mm in diam. Calyx lobes 5, broadly ovate, ca. 7 × 5<br />
mm. Petals white, 5–9, 3.2–3.4 × 1.6–1.9 cm, broadly elliptic,<br />
lanuginous with more trichomes especially at margins. Stamens<br />
35–43; filaments ca. 4 mm, distinct; anthers yellow with milky<br />
white subpellucid dots. Ovary oblate, ca. 6 mm in diam., lanuginous,<br />
10-loculed; style ca. 2 mm; stigma green, clavate, ca. 2<br />
mm, apex emarginate. Fruit green, oblate, lanuginous when<br />
young. Fl. Mar–Apr, fr. Aug–Sep.<br />
<strong>RUTACEAE</strong><br />
The parents of this hybrid species are possibly Citrus cavaleriei<br />
and C. reticulata.<br />
Additional Hybrid Taxa Cultivated to a Limited Extent in China<br />
● Forests on mountain slopes; ca. 2400 m. SE Yunnan (Funing).<br />
This appears to be a Citrus trifoliata hybrid with another Citrus<br />
Doubtful Taxa<br />
×Citrofortunella floridana J. W. Ingram & H. E. Moore,<br />
Baileya 19: 170. 1975.<br />
Limequat is a hybrid between Citrus japonica and C. ×aurantiifolia.<br />
Citrus ×georgiana Mabberley, Blumea 49: 490. 2004.<br />
Citrangequat is a hybrid between Citrus ×insitorum and C.<br />
japonica.<br />
Citrus ×insitorum Mabberley, Gard. Bull. Singapore 54: 193.<br />
2002.<br />
×Citroncirus webberi J. Ingram & H. E. Moore, Baileya<br />
19: 171. 1975, not Citrus ×webberi Wester (1915).<br />
Citrange, a hybrid between Citrus ×aurantium and C. trifoliata, is<br />
widely grown in China as a rootstock.<br />
species. Such hybrids are commonly found where the parents are grown<br />
together.<br />
Fortunella bawangica C. C. Huang, Guihaia 11: 8. 1991.<br />
霸王金橘 ba wang jin ju<br />
Trees to 4 m tall. Young branches flat; spines ca. 4 cm.<br />
Petiole 3–5(–17) mm; leaf blade elliptic to ovate, (2–)4–7(–10) ×<br />
(1–)2–3 cm, base rounded to obtuse, margin conspicuously<br />
crenulate on basal half, apex rounded. Flowers solitary. Pedicel<br />
ca. 5 mm but ca. 1 cm in fruit. Calyx lobes ca. 1 mm. Petals<br />
elliptic to lanceolate, ca. 7 mm. Stamens 20–25; filaments cohering<br />
into bundles; anthers mostly fertile. Ovary ovoid,<br />
5–7-loculed, with 1 or 2 ovules per locule; style short; stigma<br />
clavate. Fruit pyriform, 2.2–2.5 × 1.8–2.2 cm, 1- or 2-seeded;<br />
carpopodium ca. 2 mm thick. Seeds ovoid, base rounded, apex<br />
acute; seed coat smooth; embryo solitary; cotyledons green.<br />
● Scrub; ca. 1200 m. Hainan.<br />
Recent field studies show that populations morphologically in accordance<br />
with Fortunella bawangica are widely distributed in Hainan<br />
Island. The only character that can be used to distinguish this entity from<br />
typical wild populations of Citrus japonica is its pear-shaped fruit. Further<br />
study is needed to ascertain whether F. bawangica is a separate species<br />
or only a geographical race of C. japonica.<br />
22. AEGLE Corrêa, Trans. Linn. Soc. London 5: 222. 1800, nom. cons.<br />
木橘属 mu ju shu<br />
Zhang Dianxiang (张奠湘); Thomas G. Hartley<br />
Trees, deciduous, with straight axillary spines. Leaves alternate, odd-pinnately (1 or)3(or 5)-foliolate. Inflorescences terminal and<br />
axillary, loosely fasciculate or racemose and few flowered or flowers solitary. Flowers bisexual, fragrant. Calyx cup-shaped, 4- or<br />
5-lobed. Petals 4 or 5, imbricate in bud. Stamens 30–50 or more; filaments short, subulate, distinct or irregularly coherent at base;<br />
anthers linear-lanceolate. Disk columnar or bell-shaped. Gynoecium 8–20-loculed, syncarpous; ovules many per locule, in 2 rows;
<strong>RUTACEAE</strong><br />
style short and thick; stigma capitate, cylindric, or bluntly conic, longitudinally grooved. Fruit a berry, globose to ellipsoid to pyriform;<br />
exocarp thin, parenchymatous; mesocarp woody; endocarp fleshy, soft and pulpy, becoming hard and reddish orange when dry,<br />
composed largely of elongate sessile pulp vesicles which are lacking within seed locules. Seeds depressed ovoid, woolly when ripe,<br />
embedded in a clear glutinous substance that becomes hard when dry; seed coat fleshy; endosperm lacking; embryo solitary, straight;<br />
cotyledons ovate, plano-convex; hypocotyl partly included between cotyledons.<br />
One species: native to India, cultivated in China.<br />
1. Aegle marmelos (Linnaeus) Corrêa, Trans. Linn. Soc. London<br />
5: 223. 1800.<br />
木橘 mu ju<br />
Crateva marmelos Linnaeus, Sp. Pl. 1: 444. 1753.<br />
Trees to 10 m tall; spines to 3 cm. Leaflet blades ovate to<br />
elliptic, 4–12 × 2–6 cm, base rounded to narrowly cuneate,<br />
margin crenulate, apex acuminate or sometimes acute. Calyx<br />
lobes ca. 1 mm. Petals white, ca. 1 cm. Stamens nearly as long as<br />
petals. Gynoecium ca. 6 mm. Fruit greenish yellow, 10–12 × 6–8<br />
cm; mesocarp ca. 3 mm thick. Seeds ca. 8 mm. Fr. Oct. 2n = 18,<br />
36.<br />
Cultivated in forests on slightly dry hillsides; 600–1000 m. S and<br />
SW Yunnan [native to India].<br />
This species is used medicinally.<br />
97