CACTACEZ, 553 
B. brunnea, Engelm. loc. cit. p. 50. | 
Tuxas.—Norta Mexico, along the valley of the Rio Grande (Wright). 
41, Opuntia pottsii, Salm Dyck, Cact. ed. 2, p. 236. 
Norra Mexico, Chihuahua (Potts). 
42. Opuntia pseudo-tuna, Salm Dyck, Obs. Bot. p. 7; Pfeiff. Enum. p. 162. 
Mexico? 
43, Opuntia pubescens, Wendl. Cat. Hort. Herrenh. 1835 ; Pfeiff. Enum. p. 149. 
MEXICco. 
4A, Opuntia puberula, Hort. Vindob., ex Pfeiff, Enum. p. 156. 
Mexico. 
45, Opuntia ramulifera, Salm Dyck, Hort. Dyck. p. 330; Pfeiff. Enum. p. 173. 
MEXxIco. 
46. Opuntia robusta, Wendl. Cat. Hort. Herrenh. 1835; Pfeiff. Enum, p. 165. 
Opuntia flavicans, Lem., ex Labour. Cact. p. 463. 
Mexico. Hort. Kew. 
47. Opuntia rosea, DC. Rev. Cact. p. 66, t. 15; Pfeiff. Enum. p. 171. 
Mexico (Mogino & Sessé). 
48. Opuntia rufida, Engelm. Cact. U.S. & Mex. Bound. Surv. p. 51. 
Nort Mexico, common about Presidio del Norte (Bigelow), and in the lower valley 
of the Nazas, South-eastern Ghihuahua ((reqq). 
49, Opuntia gchottii, Engelm. Cact. U.S. & Mex. Bound: Surv. p. 54, t. 73. 
figg. 1-4. 
Texas.—Norra Mexico, near San Luis Potosi (Gregg). 
50. Opuntia setispina, Engelm. in Salm Dyck’s Cact. ed. 2, p. 239. 
Norra Mexico, pine-woods in the mountains of Chihuahua (Wislizenus). 
51. Opuntia spinulifera, Salm Dyck, Hort. Dyck. p. 364; Pfeiff. Enum. p. 157. 
Opuntia oligacantha, Hort. Vindob., ex Pfeiff. loc. cit. 
MEXICO. 
52. Opuntia stapelize, DC. Rev. Cact. p. 117. 
Mexico, without locality (Coulter). 
53. Opuntia stenopetala, Engelm. Cact. U.S. & Mex. Bound. Surv. p. 46, t. 66. 
Norrn Mexico, on the battle-field of Buena Vista, south of Saltillo (Gregg). 
54. Opuntia streptacantha, Lem. Cact. Gen. et Sp. Nov. Hort. Monv. p. 62. 
Mexico? Hort. Kew. 
BIOL. CENT.-AMER., Bot. Vol. 1, August 1880. 4b 
