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Lycopodium selago Stock Photos and Images
RMRDF172–. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. XIII LYCOPODINE^ 531 The whole closely resembles Goebel's figures of 5*. spinosa. A comparison with older stages indicates that from this central cell alone the sporogenous' cells are produced, as in Lycopodium selago. The outer row of cells does not divide by periclinal walls, and from the first forms an extremely distinct layer. The first cell cut off from the archesporium divides again by a periclinal wall (Fig. 307, B), and the inner cell forms prob- ably the first tapetal cell, although i
RM2RTBHEX–fir clubmoss, mountain clubmoss, fir-clubmoss (Huperzia selago, Lycopodium selago), side view, with sporangia, Netherlands, Drenthe
RMRHM2WB–. Biological survey of the Mount Desert Region. Natural history -- Maine Mount Desert Island. 16 BIOLOGICAL SURVEY OF ''One ^ of the most marked characteristics of tlie island flora is its not only strongly northern, bnt arctic character. On its coast, enveloped in cold fogs and washed by waters chilled by the arctic cnrrents, it is no wonder that arctic plants like Montia foniana and Stellana humifusa should find a congenial home. Moreover this character of the flora is shown by the fact that with one exception, Lycopodium selago, the mountain plants descend to the sea level. Neither on the o
RM2RTBG9H–fir clubmoss, mountain clubmoss, fir-clubmoss (Huperzia selago, Lycopodium selago), side view, with sporangia, Netherlands, Drenthe
RMRPR7KA–. Alpen-Flora : Westalpen. Mountain plants. 14^ Schattige Felsen und Wälder i2co-2'3oo Meter. Torfige Wälder, feuchte Rasen- plätze bis 23oo Meter.. Lycopodium Selago. Tannen-Bärlapp. Selagine. Fir-moss. B. — Lycopodium clavatum. Keulen-Bärlapp. Mousse-serpent, Lycopode ä masstie. Wolfs claw, Club-mosse.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Senn, Gustav, 1875-1945; Kaftner, C. Heidelberg : C. Winter
RM2RTBGRD–fir clubmoss, mountain clubmoss, fir-clubmoss (Huperzia selago, Lycopodium selago), side view, with sporangia, Netherlands, Drenthe
, and young sporangium(j/j), X240; C-E, young sporangia of Lycopodium selago, radial sections, X22S; F, tangential section of the same; G, radial section of youngs sporangium of L. clavatum (Figs. B-G after Bower).. Plea Stock Photo")
RMRDF1G9–. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. LYCOPODINE^ 501. Fig. 290.—a. Plant of Phylloglossum Drummondii, x about 3 (after Bertrand). sp. Sporangia; R, roots; !>, protocorm; T^, secondary protocorm; B, longitudinal sec- tion of the young strobilus of the same, showing the initial cell (0, young leaves (/', I"), and young sporangium(j/j), X240; C-E, young sporangia of Lycopodium selago, radial sections, X22S; F, tangential section of the same; G, radial section of youngs sporangium of L. clavatum (Figs. B-G after Bower).. Plea
RM2RE0436–fir clubmoss, mountain clubmoss, fir-clubmoss (Huperzia selago, Lycopodium selago), sprout with sporophylls against black background, Netherlands
RMRGR15A–. Bulletin de la Socit botanique de Genve. Plants; Plants -- Switzerland. (35) L. REHFOUS. ETUDE SUR LES STOMATES 279 LYCOPODIACÉES Lycopodium Selago L. Son stomate présente une grande analogie avec celui de la plupart des Fougères; il est surtout caractérisé par un épaississement cellulo- sique marqué des parois de ses cellules de bordure; les périclines des cellules annexes et épidenniques sont également fortement épaissies (fig. 22 et 23).. Fig. 22.— Lycopodium Selago. Section transversale équatoriale.. Please note that these images are extracted from scanned page images that may have been
RM2RE0511–fir clubmoss, mountain clubmoss, fir-clubmoss (Huperzia selago, Lycopodium selago), sprout with sporophylls against black background, Netherlands
RMRGR154–. Bulletin de la Socit botanique de Genve. Plants; Plants -- Switzerland. Fig. 22.â Lycopodium Selago. Section transversale équatoriale.. Fig. 23. â Lycopodium Selago. Section transversale équatoriale. Le fonctionnement de ce stomate doit cesser de bonne heure, par suite de l'apparition des épaississements cellulosiques dont je viens de parler; sur les feuilles jeunes, on trouve des stomates avec des cellules de bordure à anticlines dorsales amincies et permettant une communi- cation entre les lumens respectifs des cellules annexes et de bordure ; comme j'ai pu m'en rendre compte en faisant
RMRED1Y5–. Comptes rendus des séances de la Société de biologie et de ses filiales. Biology. ^ÃA>CE DV 18 DÃCEMBRE 1395 ont la même réfringence que le cytoplasme ; pour lets étudier, il faut avoir recours aux méthodes spéciales. Celle de Regaud donne les meilleurs résultats.. Lycopodium selago L. rig. I. â Cellule de la région apicalc de la tige. Fig. I a. â Celluleis de la pointe d'une jeune feuille. Fig. 2. â Cellule d'une jeune stèle de tige. Fig. 3. â Jeune cellule-mère primordiale de spores. Fig. 4. â Cellule-mère de spores. (Les chondriosomes de la deuxième lignée ne sont pas fi
RMRCCRA0–. dong bei zi yuan zhi wu shou ce. Botany. å¾3. å°æå ° Lycopodium selago L. å¾4. æ¨è³Equisetum hiemale L.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. wang wei,bo pei yun ,li jia qing,zhu you chang. ke xue chu ban she
RMRCG39T–. Die Pflanzendecke Österreich-Ungarns. Auf Grund fremder und eigener Forschungen geschildert. Plants; Plants. Pflanzengeographische Schilderung. 887. Abb. 214. Rosa glauca Subsp. Ilseana und Spiraea chamaedryfolia, zwei charakteristische Sträucher des ungarischen Erzgebirges. ganze Gebiet sehr charakteristische Rosa glauca *Ilseana) bekannte 1140 m hohe Sytna beherbergt an Felsen Anemone slavica, Minuarlia fniiescens, Semperviviim sytna. hirium, Coloneasler integerrima^ Spiraea chamaedryfolia, in höheren Lagen Woodsia ilvensis, Saxifraga Aizoon und Lycopodium Selago. Im höheren Teile des Erz-
RMRC8FAP–. Embryogenesis in plants. Embryology. 30 EMBRYOGENESIS IN PLANTS a very early stage in the embryogeny, the relation of the distal to the basal region of the embryonic axis is essentially the same as in a normal adult shoot. A growing body of experimental evidence supports the. Fig. 7. Gradient of cell size in the embryonic development A, Delesseria ruscifolia, red alga, germling (after Nienburg). Notothylas sp., Antho- cerotales, young sporophyte (after Lang). C, Lycopodium selago; et, suspensor, /, foot, a, apex (after Bruchmann). D, Lycopodium cernuum, the enlarged cells of the foot in cont
RMRH9J7A–. The botany of the Eastern Borders : with the popular names and uses of the plants, and of the customs and beliefs which have been associated with them. Plants. 328 SYSTEMATIC INDEX. filix-mas * : dilatatum : foenisecii. Cystopteiis fiagilis. Aspleuium filix-femina : adianthum nigrum : mta-muraria : alteinifolium : tri- chomanes: septentrionale. Scolopendrium vulgare. Blechnura bo- reale. Pteris aquilina. Allosorus crispus. Osmunda regalis. OpHiOGLOSSEiE.—Botrychium lunariat- Ophioglossum vulgatum. LvcoPODiACEiE.—Lycopodium alpinum : clavatum : selago. Selaginella selaginoides. * The history
RMRDWETC–. The botany of the eastern borders, with the popular names and uses of the plants, and of the customs and beliefs which have been associated with them. Botany. 328 SYSTEMATIC INDEX. tilix-mas * : dilatatum : foenisecii. Cystopteris fragilis. Asplenium filix-femina : adianthum nigrum : nita-muraria ; alternifolium : tri- chomanes: septentrionale. Scolopendrium vulgare. Blechnuin bo- reale. Pteris aquilina. AUosorus crispus. Osmunda regalis. OphioglossejB.—Botrychium lunaria t- Ophioglossum vulgatum. LYCOPODiACEiE.—Lycopodium alpinum : clavatum: selago. Selaginella selaginoides. * The history o
RMRDXG8Y–. The origin of a land flora, a theory based upon the facts of alternation. Plant morphology. SPORE-PRODUCING MEMBERS 315 assist in conveyance of nourishment to the large mass of developing spores. Thus in the main features of form and dehiscence the sporangia of Rhopalostachya conform to the type of L. Selago, but are larger and more productive; while the sporophylls have a more elaborate form for purposes of protection. This goes along with the differentiation of the vegetative from the propagative regions, the steps of which have been traced above in the genus Lycopodium. The conclusion see
RMRDWP6M–. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. REPRODUCTION OF LYCOPODIUM 315 The spoi'ophylls (Fig. 179, B) are similar to the foliage-leaves, and are commonly in whorls ; they are readily recognised by the single large, somewhat kidney-shaped, sporangium which each bears on its upper surface. In most species the sporophylls are aggregated in cones, as in Eqtiisetuni, although in L. selago, for ex- ample, the reproductive region is not clearly marked, zones of sporo- phylls usually alternating with vegetative leaves. Another pecu- liarity' of this specie
RMRDXMWW–. The origin of a land flora, a theory based upon the facts of alternation. Plant morphology. 2IO SYMMETRY OF THE SPOROPHYTE construction, though possibly dorsiventrality may have existed among the smaller forms. Of modern Lycopods, the mature, shoots of Lycopodium show in relation to their position the most gradual transitions from the radial to the dorsiventral. The species of the sub-genus Selago, and Sub-Selago maintain the radial construction, and are for the most part of upright habit. The rest of the genus is very variable : the shoot is some- times radial, as in L. inundatum: or distin
RMRDXG2J–. The origin of a land flora, a theory based upon the facts of alternation. Plant morphology. 3SO LYCOPODIALES sunken in the soil. The embryo is long dependent for nourishment entirely upon the large prothallus; hence its swollen haustorial foot, which s de- veloped most strongly in the direction of the largest nutritive supply, reacting meanwhile upon the disposition of the other parts of the embryo: in point of origin this is the consequence of unequal turgid distension and division of cells of the foot-tier, which in the Selago-type remain small. The first. Fig. 187. Lycopodium cernuum. You
RMRDXJ1G–. Freaks and marvels of plant life; or, Curiosities of vegetation. Plant anatomy. MIMICRY. 327 it is almost impossible to distinguish them from the foliage alone. Others again are nearly identical with some of the larger species of Lycopodiums, crypto- gams allied to ferns and mosses. We have figured one example of a compact composite plant (Azorella. mm 11 mm HF W w m f â ii w w w Fig. 69.- -Azorella selago. Fig. 68.âLycopodium compaction. selagd) for comparison with one of the club-mosses {Lycopodium compactiini). Other instances might have been selected from remote families, in which the
RMRDXEKN–. The origin of a land flora, a theory based upon the facts of alternation. Plant morphology. 668 CONCLUSION This general principle may be illustrated by comparison of certain of the figures quoted in Part II. Thus in Fig. 185 a, b (p. 348) of Lycopodium Phlegmaria the apical point T coincides very nearly with the intersection of octants, though it appears unsymmetrical owing to unequal growth caused by the precocity of the cotyledon (c), but it is righted by the appearance later of the second leaf (Figs. 185 c, d). It cannot be doubted that the case of L. Selago is very similar, though the •a
RMRDXGCF–. The origin of a land flora, a theory based upon the facts of alternation. Plant morphology. GENERAL MORPHOLOGY 'â 93 sometimes more sudden (Z. Dalhousiaeanum). Isolated sporangia in the sterile region are more rare than in § Selago, but they do occur (Z. carinatum, g/iidioides, squarrosum): also partially abortive sporangia have been seen at the base of the strobilus (Z. carinatuni). All these characters together. Lycopodium Phlegmaria, L. A â figure showing habit of the whole plant. One-third. B = end of a branch. Natural size. C=a sterile leaf, somewhat enlarged. j9 = sporo- phyll seen fr
RMRED1Y0–. Comptes rendus des séances de la Société de biologie et de ses filiales. Biology. (45) SÃANCE DU 18 DÃCEMBRE 1397 plastes allongés, filamenteux, parfois pelotonnés, situés en géné- ral à proximité du noyau. Dans le cytoplasme, il put, en outre, mettre en évidence des granulations graisseuses.. Fig. I et 2. â Cellules du tissu sporogène de Lycopodium inundaium (d'après Sapehin.) Fig. 3. â Cellule de la région apicale de tige de L. selago. Fig. 4- â Celluk-mère de spores de L. selogo. Fig. 5. â Jeune spore de L. selago. Fig. 6. â Oosphère d'Anthoceros (d'après Scherrer). (Figur
RMRCGK1J–. Die Pflanzenwelt Afrikas, insbesondere seiner tropischen Gebiete : Grundzge der Pflanzenverbreitung im Afrika und die Charakterpflanzen Afrikas. Botany. Fig. 68. Lycopodium saururus Lam. A Habitusbild (^s); B Zweigstück ia nat. Gr.; C Sporophyll von oben (innen); D Sporophyll von der Seite.. Fig. 69. Lycopodium Holstii Hieron. Sekt. I. Selago Dillen. Fertile und sterile Blätter meist nicht verschieden, jedenfalls die letzteren in die ersteren allmählich übergehend. — Das in der nördlich gemäßigten Zone verbreitete L. selago L. findet sich noch auf Madeira;. Please note that these images are
![. Deutsche Südpolar-Expedition, 1901-1903, im Auftrage des Reichsamtes des Innern. Gauss (Ship); Scientific expeditions. Wbrth, Vegetation. 155 C)u Im Hintergründe der kleinen, von uns besuchten „Weihnachtsbucht" fanden sich in etwa 75 m Meereshöhe, aus einem von Lomaria alpina Spr., Lycopodium magellanicum Hook. f. and Laubmoosen gebildeten Teppich hervorragend, die großen Polster von Azorella Selago Hook. )". und daneben in Menge Acaena adscendens Yahl: auch die auf Kerguelen typischen Begleit- pflanzen der Acaena, Ranunculus biternatus Sm. und Galium antarcücum Hook. f.. fehlen ni Stock Photo](https://c8.alamy.com/comp/RCT6BE/deutsche-sdpolar-expedition-1901-1903-im-auftrage-des-reichsamtes-des-innern-gauss-ship-scientific-expeditions-wbrth-vegetation-155-cu-im-hintergrnde-der-kleinen-von-uns-besuchten-weihnachtsbuchtquot-fanden-sich-in-etwa-75-m-meereshhe-aus-einem-von-lomaria-alpina-spr-lycopodium-magellanicum-hook-f-and-laubmoosen-gebildeten-teppich-hervorragend-die-groen-polster-von-azorella-selago-hook-quot-und-daneben-in-menge-acaena-adscendens-yahl-auch-die-auf-kerguelen-typischen-begleit-pflanzen-der-acaena-ranunculus-biternatus-sm-und-galium-antarccum-hook-f-fehlen-ni-RCT6BE.jpg ". Deutsche Südpolar-Expedition, 1901-1903, im Auftrage des Reichsamtes des Innern. Gauss (Ship); Scientific expeditions. Wbrth, Vegetation. 155 C)u Im Hintergründe der kleinen, von uns besuchten „Weihnachtsbucht" fanden sich in etwa 75 m Meereshöhe, aus einem von Lomaria alpina Spr., Lycopodium magellanicum Hook. f. and Laubmoosen gebildeten Teppich hervorragend, die großen Polster von Azorella Selago Hook. )". und daneben in Menge Acaena adscendens Yahl: auch die auf Kerguelen typischen Begleit- pflanzen der Acaena, Ranunculus biternatus Sm. und Galium antarcücum Hook. f.. fehlen ni Stock Photo")
RMRCT6BE–. Deutsche Südpolar-Expedition, 1901-1903, im Auftrage des Reichsamtes des Innern. Gauss (Ship); Scientific expeditions. Wbrth, Vegetation. 155 C)u Im Hintergründe der kleinen, von uns besuchten „Weihnachtsbucht" fanden sich in etwa 75 m Meereshöhe, aus einem von Lomaria alpina Spr., Lycopodium magellanicum Hook. f. and Laubmoosen gebildeten Teppich hervorragend, die großen Polster von Azorella Selago Hook. )". und daneben in Menge Acaena adscendens Yahl: auch die auf Kerguelen typischen Begleit- pflanzen der Acaena, Ranunculus biternatus Sm. und Galium antarcücum Hook. f.. fehlen ni
Search Results for Lycopodium selago Stock Photos and Images (127)
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