CACTACEA. 509 
72, Mamillaria (Anhalonium) elongata, Salm Dyck, Cact. ed. 2, p. 77. 
Anhalonium pulvilligerum, Lem. Hort. Monv. i. p. 275, cum ic., ex Salm Dyck, loc. cit. p. 5. 
Mexico (Galeotti ?). | 
_ 73. Mamillaria elephantidens, Lem. Cact. in Hort. Monv. Descr. i. p. 1, 
Hort. Univ. t. 38, et Iconogr. Cact. livr. ii.; Pfeiffer & Otto, Abbild. ii. t. 20. 
Mexico. Hort. Kew. 
74. Mamillaria erecta, Lem. Cact. alig. Nov. Hort. Monv. p. 3, et Iconogr. 
Cact. livr. i. 
_ Norra and Sour Mexico, on the Rio Grande, on the Mesillas, near Ismiquilpan 
and Zimapan, and on the Cardonal (Ehrenberg). Hort. Kew. 
75. Mamillaria erectacantha, Forst. in Otto & Dietr. Allg. Gartz. xy. p. 50. 
MEXIco. 
76. Mamillaria eriacantha, Hort. Berol., ex Pfeiff Enum. p. 32; Pfeiffer 
& Otto, Abbild. i. t. 25. 
Mamillaria cylindracea, DC. Rev. Cact. p. 111? 
Sour Mzxico, Malpays de Naulingo (Ehrenberg). 
77. Mamillaria euchlora, Ehrb. in Otto & Dietr. Allg. Gartz. xvi. p. 326; 
Walp. Ann. ii. p. 674. 
MEXxIco. 
78. Mamillaria eximia, Ehrb. in Otto & Dietr. Allg. Gartz. xvii. p. 309; 
Walp. Ann. ii. p. 678. 7 
Mexico. Hort. Kew. 
79. Mamillaria exudans, Zucc. in Pfeiff. Enum. p. 15. 
Sour Mexico, between Ismiquilpan and Zimapan (Karwinsk). 
80. Mamillaria fellneri, Ehrb. in Otto & Dietr. Allg. Gartz. xvii. p. 261; 
Walp. Ann. ii. p. 676. 
MExIco. 
81. Mamillaria fischeri, Pfeiff. in Otto & Dietr. Allg. Gartz. 1836, p. 207, 
et Enum. p. 20. 
Mexico. 
82. Mamillaria flavescens, Pfeiff. Enum. p. 10. 
Cactus flavescens, DC. Cat. Hort. Monsp. p. 83. 
SourH Muxico, Oaxaca (Ehrenberg). Hort. Kew. 
83, Mamillaria forsterii, Miihlpf. in Otto & Dietr. Allg. Gartz. xiv. p. 371. | 
MEXICO.. 
