30 THE CACTACEAE. 



Illustrations: Monatsschr. Kakteenk. 24: 53, as Alammillaria guerkeana; Alianza 

 Cientifica Universal 3: pi. opp. 119, as Mammillaria valida. 



8. Coryphantha echinoidea (Ouehl). 



Mammillaria 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 i 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 i 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. 



9. Coryphantha clava (Pfeiffer) Lemaire, Cactees 34. 1868. 



Mammillaria clava Pfeiffer, Allg. Gartenz. 8: 282. 1840. 



Mammillaria schlechtendalii Ehrenberg, Linnaea 14: 377. 1840. 



Mammillaria schlechtendalii levior Sa-lm-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. PI. i: 260. 1891. 



Cactus schlechtendalii Kuntze, Rev. Gen. PI. 1: 261. 1891. 



Plant-bodj' 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 i, 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 Ivcmaire (Cactees 34. 1868) is usually given as a s3'nonym 

 of this species. 



Illustrations: Curtis's Bot. Mag. 74: pi. 4358; Loudon, Encycl. PI. ed. 3. 1379. f. 

 19390, as Alammillaria clava. 



10. Coryphantha octacantha (De Candolle). 



Alammillaria octacantha De Candolle, Mem. Mus. Hist. Nat. Paris 17: 113. 1828. 

 Mammillaria leucacantha De Candolle, Mem. Mus. Hist. Nat. Paris 17: 113. 1828. 

 Alammillaria lehmanni Otto in Pfeiffer, Enum. Cact. 23.' 1837. 

 Alammillaria macrplhele Martins in Pfeiffer, Enum. Cact. 24. 1837. 

 Mammillaria plaschnickii 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. 

 Mammillaria martiana Pfeiffer, Linnaea 12: 140. 1838. 

 ? Alammillaria thelocamptos Lehmarm, Linnaea 13: Litt. loi. 1839. 

 Alammillaria aulacothele multispina Scheidweiler, Bull. Acad. Aci. Brux. 6: 92. 1839. 

 Alammillaria aulacothele spinosior Monville in Lemaire, Cact. Gen. Nov. Sp. 93. 1839. 

 Alammillaria aulacothele sulcimamma Pfeiffer in Walpers, Bot. Repert. 2: 302. 1843. 

 Alammillaria aulacothele flavispina Salm-D5-ck, Cact. Hort. Dyck. 1S44. 13. 1845. 

 Alammillaria polymorpha Scheer in Miihlenpfordt, Allg. Gartenz. 14: 373. 1846. 

 Alammillaria macrothele lehmanni Salm-Dyck, Cact. Hort. Dyck. 1849. 19. 1850. 

 Alammillaria macrothele biglandulosa Salm-Dyck, Cact. Hort. Dyck. 1849. 19. 1850. 

 Alammillaria plaschnickii 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 higlandulosus Poselger, Allg. Gartenz. 21: 125. 1853. 

 Coryphantha lehmanni Lemaire, Cactees. 34. 1868. 

 Coryphantha aulacothele Lemaire, Cactees 34. 1868. 

 Cactus macrothele Kuntze, Rev. Gen. PI. i: 260. 1891. 

 Cactus aulacothele Kuntze, Rev. Gen. PI. i: 260. 1891. 



