Echinofossulocactus Lawrence, Loudon, Gard. Mag. 1841, 17. 317; Britton & Rose, Cactaceae, 3. 109(1922). 1841

Echinofossulocactus acanthion Schielle & Dietrich  1850

Echinofossulocactus acroacanthus (Stieber) Rowley, Repert. Pl. Succ. (I. O. S.), 23: 7 ( publ. 1974), 1972

Echinofossulocactus adversispinus Muehlenpfrdt  1848

Echinofossulocactus albatus (A. Dietrich) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 112, 1922

Echinofossulocactus anfractuosus (Mart. 1837) Lawr., Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 317, 1922

Echinofossulocactus angustispinus Lawrence, Cactaceae, 3. 318., 1922

Echinofossulocactus arrigens (Link) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 114, f. 120, 1922

Echinofossulocactus arrigens v. atropurpurescens Salm-Dyck

Echinofossulocactus boedekerianus (A. Berger) Croiz, Cact. & Succ. Journ. Amer. 14. 111, 1929

Echinofossulocactus boedekerianus f. densispinus (Pechanek) P.V. Heath, Calyx 2 (3): 86, 1992

Echinofossulocactus boedekerianus f. ochoterenanus(Tiegel) P.V. Heath, Calyx 2 (3): 86, 1992

Echinofossulocactus boedekerianus f. parksianus (Pechanek) P.V. Heath, Calyx 2 (3): 86, 1992

Echinofossulocactus boedekerianus f. rosasianus (Pechanek) P.V. Heath, Calyx, 2 (3): 86: 1992

Echinofossulocactus brachycanthus Schielle & Dietrich  1850

Echinofossulocactus brachycanthus v. oligacanthus  

Echinofossulocactus bravoae Whitmore, Cact. & Succ. Journ., Amer. 5. 589, in obs., indice, nomen., 1934

Echinofossulocactus bustamantei (H. Bravo Hollis) Croizat, Cact. & Succ. Journ. Amer. 14. 111, 1937

Echinofossulocactus cadaroyi Hort.

Echinofossulocactus caespitosus Backeberg, Cact. Journ. Brit. 12. 81., 1950

Echinofossulocactus campylacanthus Lawrence, Loudon, Gard. Mag., 17. 318., 1841

Echinofossulocactus carneus Whitm.,  1934

Echinofossulocactus confusus Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 120, f. 127, 1922

Echinofossulocactus coptonogonus (Lemaire) Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 317, 1841

Echinofossulocactus coptonogonus v. major Lawrence,  1841

Echinofossulocactus cornigerus Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus cornigerus v. angustispinus Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus cornigerus v. elatior Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus cornigerus v. rubrospinus Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus crispatus (DC.) Lawrence, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 317, 1841

Echinofossulocactus crispatus f. acracanthus (Stieber) P.V. Heath, Calyx 2 (3): 86, 1992

Echinofossulocactus crispatus f. anfractuosus (Mart.) P.V. Heath, Calyx 2 (3): 86, 1992

Echinofossulocactus crispatus f. arrigens (Link) P.V. Heath, Calyx 2 (3): 86, 1992

Echinofossulocactus crispatus f. confusus (Britton & Rose) P.V. Heath, Calyx, 2 (3): 86: 1992

Echinofossulocactus crispatus f. dichroacanthus (Pfeiffer) P.V. Heath, Calyx, 2 (3): 86: 1992

Echinofossulocactus crispatus f. ensiferus (Lemaire) P.V. Heath, Calyx 2 (3): 86, 1992

Echinofossulocactus crispatus f. flexispinus (H. Bravo Hollis) P.V. Heath, Calyx 2 (3): 86, 1992

Echinofossulocactus crispatus f. grandicornis (Lemaire) P.V. Heath, Calyx 2 (3): 86, 1992

Echinofossulocactus crispatus f. guerraianus (Backeberg) P.V. Heath, Calyx 2 (3): 86, 1992

Echinofossulocactus crispatus f. heteracanthus (Muehlenpf.) P.V. Heath, Calyx 2 (3): 86, 1992

Echinofossulocactus crispatus f. kellerianus (Krainz) P.V. Heath, Calyx 2 (3): 87, 1992

Echinofossulocactus crispatus f. lamellosus (A. Dietrich) P.V. Heath, Calyx 2 (3): 87, 1992

Echinofossulocactus crispatus f. lancifer (A. Dietrich) P.V. Heath, Calyx 2 (3): 87, 1992

Echinofossulocactus crispatus f. obvallatus (DC.) P.V. Heath, Calyx 2 (3): 87, 1992

Echinofossulocactus crispatus f. pentacanthus (Lemaire) P.V. Heath, Calyx 2 (3): 87, 1992

Echinofossulocactus crispatus f. tellii (Berger) P.V. Heath, Calyx 2 (3): 87, 1992

Echinofossulocactus crispatus f. undulatus (A. Dietrich) P.V. Heath, Calyx 2 (3): 87, 1992

Echinofossulocactus crispatus f. violaciflorus (Quehl) P.V. Heath, Calyx 2 (3): 87, 1992

Echinofossulocactus debilispinus (Berg) Lawrence  1840

Echinofossulocactus densispinus (Tiegel) Schmol, Cactus (Brussels). 3 (9): 132., 1965

Echinofossulocactus dichroacanthus (Mart. 1837) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 117, 1922

Echinofossulocactus durispinus Tiegel  1934

Echinofossulocactus echidne Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus elatior Lawrence, Loudon, Gard. Mag., 17. 136, 1841

Echinofossulocactus ensiferus  (Lem 1838) Britton & Rose  1838

Echinofossulocactus ensiferus v. pallidus R.A. Foster,

Echinofossulocactus ensiformis Lawrence, Loudon, Gard. Mag., 17. 317; Britton & Rose, Cactaceae, 3. 114 (1922), in obs., 1841

Echinofossulocactus erectocentrus Backeberg, Cactac. Handb. Kakteenk. 5. 2772., 1961

Echinofossulocactus erectocentrus v. cylindricus

Echinofossulocactus esperanzaensis Whitm., Cact. & Succ. Journ., Amer. 5. 590, in obs., indice, nomen., 1934

Echinofossulocactus fasciculatus  

Echinofossulocactus flexispinus  (Salm-Dyck) H. Bravo Hollis, Cact. & Suc. Mexic. 14. 44, 1850

Echinofossulocactus gasseri Whitm., Cact. & Succ. Journ., Amer. 5. 590, nomen, 1934

Echinofossulocactus gladiatus (Link & Otto) Lawr., Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 317, 1841

Echinofossulocactus gladiatus v. carneus Schmoll nomen subnud. 

Echinofossulocactus grandicornis (Lemaire) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 114, 1922

Echinofossulocactus grisacanthus Whitm., Cact. & Succ. Journ., Amer. 5. 589, in obs., indice, nomen., 1934

Echinofossulocactus griseispinus Jacobi  1856

Echinofossulocactus guerraianus Backeberg, Stachlige Wildnis, 339; cf. Backeb. in Fedde, Repert. 51. 63 (1942). 1942

Echinofossulocactus harrisii Lawrence, Loudon, Gard. Mag., 17. 318; Britton & Rose, Cactaceae, 3. 109 (1922), in obs., 1841

Echinofossulocactus hastatus (Hopffer) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 111, 1922

Echinofossulocactus helophora v. longifossulatus Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus helophorus Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus heteracanthus (Muehlenpf.) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 112, 1922

Echinofossulocactus hexaedrophorus Lawrence, Loudon, Gard. Mag., 17. 318., 1841

Echinofossulocactus heyderii (A. Dietrich) Britton & Rose  1846

Echinofossulocactus holopterus Lawrence, Loudon, Gard. Mag., 17. 318., 1841

Echinofossulocactus hookerii (Muehlenpf) Britton & Rose  1845

Echinofossulocactus hystrichocentrus (Berger) Lawrence  1840

Echinofossulocactus ignotus-venosus Lawrence, Loudon, Gard. Mag., 17. 318; Britton & Rose, Cactaceae, 3. 109 (1922), in obs., 1841

Echinofossulocactus karwinskianus Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus kellerianus Krainz, Schweiz. Gart., 10; cf. Krainz, Neue u. selteneSukkulent. 9 [1946]., 1946

Echinofossulocactus lamellosus (A. Dietrich) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 113, 1922

Echinofossulocactus lamellosus hastatus  

Echinofossulocactus lancifer (A. Dietrich non Reichb.) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 118, 1922

Echinofossulocactus lexarzai (H. Bravo Hollis) Croizat, Cact. & Succ. Journ. Amer. 14. 111, 1937

Echinofossulocactus lloydii Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 113, f. 118, 1922

Echinofossulocactus longispinus

Echinofossulocactus macracanthus Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus micracanthus Lawrence, Loudon, Gard. Mag., 17. 317., 1841

Echinofossulocactus mirbelii Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus multiareolatus H. Bravo Hollis, An. Inst. Biol., Mexico, 30. 59., 1962

Echinofossulocactus multicostatus (Hildmann) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 111, 1922

Echinofossulocactus multicostatus f. erectocentrus (Backeberg) P.V. Heath, Calyx 2 (3): 87, 1992

Echinofossulocactus multicostatus f. lloydii (Britton & Rose) P.V. Heath, CubaINFO 2 (3): 87, 1992

Echinofossulocactus multicostatus v. coahuilensis Frick,  1931

Echinofossulocactus multicostatus v. zacatecasensis (Britton & Rose) P.V. Heath, Calyx 2 (3): 87, 1992

Echinofossulocactus nerispinus Schmol nomen subnud.,

Echinofossulocactus obvallatus (DC.) Lawrence, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 317, 1841

Echinofossulocactus obvallatus v. arrigens (Link ex A. Dietrich) Meyran, Cact. & Suc. Mex., 17 (2): 43, without basionym ref. or author, 1972

Echinofossulocactus ochoterenaus (Tiegel) Whitm., Cact. & Succ. Journ., Amer. 5. 589, nomen.; Schmoll in Cact. & Succ. Journ., Amer. 6. 37, sub ic. (1934); Oehme in Beitr. Sukkulentenk. u. -Pflege, 1938, 82, 1933

Echinofossulocactus ochoterenaus v. parksianus  

Echinofossulocactus ochoterenaus v. rosasianus 

Echinofossulocactus ochoterenaus v. sphacelatus Whitm 

Echinofossulocactus ochroleucus Jacobi  1856

Echinofossulocactus octosterenanus P.V. Heath, Calyx,

Echinofossulocactus oxypterus Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus pachycentrus  

Echinofossulocactus parksianus Schmoll, Katalog Schmoll, 1934

Echinofossulocactus pentacanthus (Lemaire) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 115-116, 1922

Echinofossulocactus pfeifferi Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus phyllacanthus (Mart. 1836) Lawrence, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 317, 1841

Echinofossulocactus phyllacanthus f. guerrianus  

Echinofossulocactus phyllacanthus v. grandicornus  

Echinofossulocactus phyllacanthus v. laevior Lemaire,

Echinofossulocactus phyllacanthus v. macracanthus Monw,  1841

Echinofossulocactus phyllacanthus v. micracanthus Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 317, 1841

Echinofossulocactus phyllacanthus v. nova  

Echinofossulocactus phyllacanthus v. tenuiflorus Labouret

Echinofossulocactus phyllacanthus v. triscupidiatus  

Echinofossulocactus phyllacanthus v. violaciflorus  

Echinofossulocactus platyceras Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus raphidacanthus  Schielle & Dietrich  1850

Echinofossulocactus rectospinus Whitm., Cact. & Succ. Journ., Amer. 5. 589, in obs., indice, nomen., 1934

Echinofossulocactus recurvus Lawrence, Loudon, Gard. Mag., 17. 318., 1841

Echinofossulocactus recurvus v. campylacanthus Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus robustus Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus rosasianus Whitmore, Katalog Schmoll, 1934

Echinofossulocactus rubro-spinus Lawrence, Loudon, Gard. Mag., 17. 318., 1841

Echinofossulocactus sphacelatus Whitmore, Cact. & Succ. Journ., Amer. 5. 589, nomen.; Schmoll, Cact. & Succ. Journ., Amer. 6. 37, (1934), nomen., 1934

Echinofossulocactus spinosus (Wegener) P.V. Heath, Calyx, 2 (3): 87: 1844

Echinofossulocactus spinosus f. albatus (A. Dietrich) P.V. Heath, Calyx 2 (3): 87, 1992

Echinofossulocactus spinosus f. vaupelianus (Werdermann) P.V. Heath, Calyx 2 (3): 87, 1992

Echinofossulocactus spiralis Lawrence, Loudon, Gard. Mag., 17. 318., 1841

Echinofossulocactus sulphureus f. hastatus (Hopffer) P.V. Heath, Calyx 2 (3): 87, 1992

Echinofossulocactus sulphureus  (A. Dietrich) J. Meyran, Cact. Suc. Mex., 22 (2): 36, 1952

Echinofossulocactus tegelbergii Schuetz, Kaktusy, 8: 93-94. without type; cf. Rowley in Repert. Pl. Succ. (I. O. S.). 23: 7 (1972 publ. 1974). 1953

Echinofossulocactus tellii Echinofossulocactus tetracanthus Lemaire 

Echinofossulocactus tetracentrus Lemaire

Echinofossulocactus tetraxiphus (Otto) Oehme, Beitr. Sukkulentenk. u. Pflege, 82: 1898

Echinofossulocactus tricuspidatus (Scheidweiler) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 117-118, 1922

Echinofossulocactus trifurcatus Jacobi  1856

Echinofossulocactus turbiniformis Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus undulatus  Lawrence (Dietr?)  1844

Echinofossulocactus vanderaeyi Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus vanderaeyi v. ignotus-longispinus Lawrence in Loudon, Gardeners' Magazine of Botany, Horticulture, Floriculture. 17: 318, 1841

Echinofossulocactus vaupelianus (Werdermann) Tieg & Oehme, Beitr. Sukkulentenk. u. Pflege, 82, an E. Vaupelianus Whitm., 1931

Echinofossulocactus violaciflorus (Quehl) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 114-115, pl. 23, f. 5; f. 121, 1922

Echinofossulocactus wegnerii Schielle & Dietrich 

Echinofossulocactus wippermannii (Muehlenpf.) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 111, 1922

Echinofossulocactus xiphacanthus (Miq.) Backeberg, Cactac. Handb. Kakteenk. 5. 2776, in obs., 1956

Echinofossulocactus zacatecasensis Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 3: 113, f. 119, 1922

Echinofossulocactus zacatecasensis v. moranensis H. Bravo Hollis, Cact. Suc. Mex. 14 (3): 67. without Latin diagnosis, 1969