Opuntia.] CACTACEiE. _ 407 



O.fraijiUs, \a,i:frut€scens. Engelm. PI. Lindh. 245 (37). 



O.frutescens. Engelm. in Wisliz. Rep. 28; Gray, PL Lindh. 208; Syn. Cact. 309 

 (53) ; Cact. Mex. Bound. 60 & 77; King's Kep. 5. 120. Scheele, Koem. Texas, 434. 

 Salni, Cact. Hort. Dyck. 251. Lab. Monogr. Cact. 494. Scheer, Seem. Bot. 

 Herald, 293. Torr. & Gray, Pac. R. Rep. 2. 165. Engelm. & Bigel. Pac. R. Rep. 

 4. 53, t. 20, f. 2, 3, & t. 24, f. 16-18 (seed). Walp. Ann. 5. 57. Gray, Hall's PI. 

 Texas, 9. 

 Var. brevispina. 



? 0. gracilis. Mart. Hort. Monac. ; Pfeiffer, Enum. Cact. 172. "Walp. 1. c. Salm, 

 Cact. Hort. Dyck. 251. 



? 0. virgata. Hort. Vindob. 



O.frutescens, var. brevispina. Engelm. Pac. R. Rep. 4. 56, t. 20, f. 4, 5, & t. 24, 

 f. 19 (seed) ; Syn. Cact. 309 (53). Walp. Ann. 5. 57. 



Var. vaginata. 



0. vaginata. Engelm. in Wisliz. Rep. 16 ; Emory's Rep. 158, f. 12 ; Syn. Cact. 

 309 (53). Walp. Ann. 3. 897 & 5. 57. Engelm. & Bigel. Pac. R. Rep. 4. 52, t. 20, 

 f. 1, & t. 24, f. 13-15 (seeds). 



O. macrocentra. Engelm. Syn. Cact. 292 (36) ; Cact. Mex. Bound. 49, t. 75, f. 8 

 (seed). Walp. Ann. 5. 50. 



O. mamillata. Schott; Engelm. Syn. Cact. 308(52); Cact. Mex. Bound. 58, 

 t. 75, f. 19 (seed) ; Bot. Calif. 1. 250. Walp. Ann. 5. 57. 



O. microdasys. Lelim. Ind. Sem. Hamb. 1827, 16 ; Act. Acad. Leop. 16. 317 

 (Pug. PI. 1. 11 & 2. 5). Pfeiffer, Enum. Cact. 154. Walp. Rep. 2. 348. Salm, 

 Cact. Hort. Dyck. 241. Lab. Monogr. Cact. 471. Engelm. Syn. Cact. 298 (42). 

 (North-eastern Mexico.) 



0. puh-inata. DC. Rev. Cact. 119. 

 O. Missouriensis. DC- Prodr. 3. 472. Salm, Hort. Dyck. 363; Cact. Hort. 

 Dyck. 67. Don, Mill. 3. 172. Torr. & Gray, Fl. 1. 555, in part. Pfeiffer, Enum. 

 Cact. 158. Walp. Rep. 2. 349; Ann. 5. 53. Dietr. 3. 114. Torrey, Frem. Rep. 

 90 ; Emory's Rep. 408. Spach, Hist. Veg. 13. 405. Engelm. PI. Lindh. 38 ; PI. 

 Upp. Miss. 192; Syn. Cact. 299 (43) ; King's Rep. 5. 118; Hayd. Rep. 1871, 483 ; 

 Simpson's Rep. 442. Lab. Monogr. Cact. 461. Engelm. & Bigel. Pac. R. Rep. 

 4. 44, 1. 14, f. 1-3, & t. 23, f. 16 (seed). Gray, Pac. R. Rep. 12. 43 ; Proc. Acad. 

 Philad. 1863, 61 ; Manual, 185. PI. Bourgeau, 256. Porter, Fl. Col. 49. Helms- 

 ley, Garden, 11. 275. 



Cactus ferox. Nutt. Genera, 1. 296, not Willd. James, Long's Exped. 2. 140 & 

 156. Torrey, Ann. Lye. N. Y. 2. 202. Eat. & Wr. 163. 

 0. pohjacantha. Haworth, Syn. PI. Succ. Suppl. 82. 



0. media. Haworth, Syn. PI. Succ. Suppl. 82 ; fide Salm, Hort. Dyck. 363. 

 Pfeiffer, Enum. Cact. 158. Dietr. 3. 114. Walp. Rep. 2. 350. 

 ? 0. splendens. Hort. Angl. ; Pfeiffer, 1. c. 159. 

 0. Missouriensis, var. elongata. Salm, Cact. Hort. Dj^ck. 67. 



Var. platycarpa. Engelm. Pac. R. Rep. 4. 40, t. 14, f. 4, & t. 23, f. 17 (seed) ; 

 Syn. Cact. 300 (44). Walp. 1. c. 



Var. microsperma. Engelm. II. cc, t. 14, f. 5-7, & t. 24, f. 1, 2 (seeds). 

 Walp. 1. c. 



Var. albispina, Engelm. U. cc. t. 14, f. 8-10, & t. 23, f. 18 (seed) ; Simpson's 

 Rep. 442. Walp. Ann. 5. 53. 



Var. trichophora. Engelm. I. c. t. 15, f. 1-4, & t. 23, f. 19 (seed) ; Syn. Cact. 44. 

 Walp. 1. c. ■ ■ 



