540 | | _CACTACER, 
128. Echinocactus, sp. nov. (“E. horizonthalonio remote aff.,” Scheer in Seem. 
Bot. Voy. ‘ Herald,’ p. 290). 
NortH Mexico, Chihuahua (Potts). 
129. Echinocactus, sp. nov. (“E. hystriacantho aff.,” Scheer in Seem. Bot. Voy. 
‘ Herald,’ p. 290). 
Norra Mexico, Chihuahua (Potts). 
130. Echinocactus, sp. (“ E. Scheeri aff.,” Scheer j in Seem. Bot. Voy. ‘ Herald,’ 
p. 290). 
Nort Mexico, near Chihuahua (Potts). 
6. CEREUS. 
Cereus, Haw. Syn. Pl. Succ. p. 178; Benth. et Hook. Gen. Plant. i. p. 849. | 
About 200 species in the warm parts of America, a few occurring in the West 
Indies and Galapagos Islands. 
1, Cereus acutangulus, Hort. Berol., ex Pfeiff. Enum. p. 107. 
Mexico. Hort. Kew. 
2. Cereus adustus, Engelm. in Wisliz. Rep. et Synops. Cact. U.S. &c. p. 24; 
Salm Dyck, Cact. ed. 2, p. 191. 
NortH Mexico, mountains west of Chihuahua near Cosiquiriachi (ex Engelmann). 
3. Cereus anisacanthus, DC. Rev. Cact. p. 116. 
Norra Mexico, without locality (Coulter), near Jicuilco, on the Rio Grande, as a tree 
(Ehrenberg). Hort. Kew. 
4, Cereus amenus, Dietr. in Otto & Dietr. Allg. Gartz. 1844, p. 187. 
Sout Mexico, San Mateo, 7000 feet (hrenberg). 
8 Cereus baxaniensis, Karw. in Labour. Cact. p. 374; Pfeiff. Enum. p. 109. 
Sour Muxico, between Cordova and Vera Cruz (Harwinski). Hort. Kew. 
6. Cereus benekei, Ehrb. in Bot. Zeit. ii. p. 835. 
MEXIco. 
7. Cereus bifrons, Haw. Suppl. p. 76. 
MEXIco. 
This is reduced by Pfeiffer (Enum. p. 122) and Salm Dyck (Cact. ed. 2, p. 53) to C. 
coccinea, Salm Dyck; on what ground does not appear. 
8. Cereus brachiatus, Galeotti in Salm Dyck, Cact. ed. 2, p. 195, et Labour. 
Cact. p. 328. 
South Mexico, Tehuacan (Galeotti). 
