30 THE CACTACEAE. 
Illustrations: Monatsschr. Kakteenk. 24: 53, as Mammullaria guerkeana; Alianza 
Cientifica Universal 3: pl. opp. 119, as Mammiullaria valida. 
8. Coryphantha echinoidea (Quehl). 
Mamumillaria echinoidea Quehl, Monatsschr. Kakteenk. 23: 42. 1913. 
Plant solitary, globular or a little broader than high, 5 to 6 cm. in diameter, very woolly at 
apex; tubercles conic, 1.5 cm. high, 1.2 cm. broad at base; groove with 1 to 3 small, grayish glands; 
areoles elliptic, woolly when young, glabrate in age; radial spines 20 to 25, 1.5 cm. long, white with 
darker tips; central spines 1 to 3, a little stouter than the radials, one of them porrect, horn-colored ; 
flowers rose-colored, 6 to 8 cm. broad; perianth-segments oblong, broad at apex, denticulate, some- 
times mucronate; filaments numerous, red; fruit and seed unknown. 
Type locality: Durango. 
Distribution: Durango, Mexico. 
Illustration: Monatsschr. Kakteenk. 23: 42, as Mammillaria echinoidea. 
7 9. Coryphantha clava (Pfeiffer) Lemaire, Cactées 34. 1868. 
Mammillaria clava Pfeiffer, Allg. Gartenz. 8: 282. 1840. 
 Mammillaria schlechtendalit Ehrenberg, Linnaea 14: 377. 1840. 
Mammillaria schlechtendalit levior Salm-Dyck, Cact. Hort. Dyck. 1849. 127. 1850. 
Echinocactus clavus Poselger, Allg. Gartenz. 21:°125. 1853. 
Echinocactus schlechtendalii Poselger, Allg. Gartenz. 21: 125. 1853. 
Cactus clavus Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus schlechtendalit Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
Plant-body club-shaped, deep green; axils of tubercles with white wool and with a red gland at 
base of groove; tubercles erect, elongated, somewhat 4-sided; spine-areoles white-villous; radial 
spines usually 7, straight, horn-colored, about equal; central spine 1, a little longer and stouter than 
the others; flowers very large, sometimes 9 cm. broad, pale yellow, with the outer segments tinged 
with red; perianth-segments glossy, linear-oblong to spatulate, outer ones entire, inner ones serrate 
and mucronate at apex; filaments orange; stigma-lobes 6, linear, yellow. 
Type locality: Mexico. 
Distribution: Mexico. 
Coryphantha schlechtendalii Lemaire (Cactées 34. 1868) is usually given as a synonym 
of this species. 
Lllustrations: Curtis’s Bot. Mag. 74: pl. 4358; Loudon, Encycl. Pl. ed. 3. 1379. f. 
19390, as Mammillaria clava. 
= 10. Coryphantha octacantha (De Candolle). 
Mammillaria octacantha De Candolle, Mém. Mus. Hist. Nat. Paris 17: 113. 1828. 
: Mammillaria leucacantha De Candolle, Mém. Mus. Hist. Nat. Paris I7: 113. 1828. 
7 Mammillaria lehmanni Otto in Pfeiffer, Enum. Cact. 23. 1837. 
Mammillaria macrothele Martius in Pfeiffer, Enum. Cact. 24. 1837. 
Mammillaria plaschnickit Otto in Pfeiffer, Enum. Cact. 24. 1837. 
Mammillaria aulacothele Lemaire, Cact. Aliq. Nov. 8. 1838. 
Mammillaria biglandulosa Pfeiffer, Allg. Gartenz. 6: 274. 1838. 
Mammillaria sulcimamma Pfeiffer, Allg. Gartenz. 6: 274. 1838. 
Mammillaria lehmannii sulcimamma Miquel, Linnaea 12: 9. 1838. 
Mammiillaria martiana Pfeiffer, Linnaea 12: 140. 1838. 
? Mammiillaria thelocamptos Lehmann, Linnaea 13: Litt. ror. 1839. 
Mammillaria aulacothele multispina Scheidweiler, Bull. Acad. Aci. Brux. 6: 92. 1839. 
Mammiilaria aulacothele spinosior Monville in Lemaire, Cact. Gen. Nov. Sp. 93. 1839. 
Mammillaria aulacothele sulcimamma Pfeiffer in Walpers, Bot. Repert. 2: 302. 1843. 
~>Mammillaria aulacothele flavispina Salm-Dyck, Cact. Hort. Dyck. 1844. 13. 1845. 
Mammillaria polymorpha Scheer in Mithlenpfordt, Allg. Gartenz. 14: 373. 1846. 
Mammillaria macrothele lehmanni Salm-Dyck, Cact. Hort. Dyck. 1849. 19. 1850. 
Mammillaria macrothele biglandulosa Salm-Dyck, Cact. Hort. Dyck. 1849. 19. 1850. 
Mammillaria plaschnickit straminea Salm-Dyck, Cact. Hort. Dyck. 1849. 19. 1850. 
Echinocactus macrothele Poselger, Allg. Gartenz. 21: 125. 1853. 
Echinocactus plaschnickii Poselger, Allg. Gartenz. 21: 125. 1853. 
Echinocactus macrothele lehmanni Poselger, Allg. Gartenz. 21: 125. 1853. 
Echinocactus macrothele biglandulosus Poselger, Allg. Gartenz. 21: 125. 1853. 
Coryphantha lehmanni Lemaire, Cactées. 34. 1868. 
Coryphantha aulacothele Lemaire, Cactées 34. 1868. 
Cactus macrothele Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus aulacothele Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
