406 CACTACE^. [Opuntia. 



O. echinocarpa. Engelm. & Bigel. 1. c. t. 18, f. 5-10, & t. 24, f. 8 (seeds). En- 

 gelm. Syn. Cact. 303 (49); Ives' Kep. 14; But. Calif. 1. 250. Walp. Ann. 5. 55. 

 Parry, Am. Naturalist, 9. 20. 



Var. major. Engelm. 83^11. Cact. 1. c. ; Cact. Mex. Bound. 56. 

 O. Emoryi. Engelm. Syn. Cact. 303 (47) ; Cact. Mex. Bound. 53, t. 70, 71 ; 

 Bot. Calif. 1. 249. Walp. Ann. 5. 54. 



O. Engelmanni. Salm, Cact. Hort. Dyck. 235. Engelm. in Gray, PI. Lindh. 

 207 ; Am. Journ. Sci. 2. 14. 33S ; Syn. Cact. 290 (34) ; Cact. Mex. Bound. 47, t. 75, 

 f. 1-4 (seeds) ; Bot. Calif. 1. 248. Scheer, Seem. Bot. Herald, 293. Walp. Ann. 



2. 686 & 5. 49. Lab. Monogr. Cact. 460. Young, Fl. Texas, 278. 



0. Lindheimeri. Engelm. in Gray, PI. Lindh. 207. Walp. Ann. 2. 686. 

 1 0. dulcis. Engelm. Cact. Mex. Bound. 48, t. 75, f. 5-7 (seeds). 

 Var. cyclodes. Engelm. & Bigel. Pac. R. Rep. 4. 37, t. 8, f. 1, & t. 22, f. 8, 9 

 (seed). Engelm. Syn. Cact. 291 (35). 



Var. occidentalis. Engelm. in Pac. R. Rep. 4, errata iii. ; Syn. Cact. 290 (34) ; 

 Bot. Calif. 1. 248. 



0. occidentalis. Engelm. & Bigel. 1. c. 4. 38, t. 7, f. 1, 2, & t. 22, f. 10 (seed). 

 Var. (?) littoralis. Engelm. in Bot. Calif. 1. 248. 



O. Ficus-Indica, Mill. Torr. & Gray, Fl. 1. 555. Engelm. Syn. Cact. 290 (34) ; 

 Bot. Calif.- 1. 248. Chapman, 144. Wood, Bot. & Fl. 132. 



O. filipendula. Engelm. Syn. Cact. 294 (38) ; Cact. Mex. Bound. 51, t. 68. 

 Wall). Ann. 5. 51. 



O. fragilis. Haworth, Syn. PI. Succ. Suppl. 82. DC. Prodr. 3. 472. Don, IMill. 



3. 172. Pfeiffer, Allg. Gart. Zeit. 6. 276 ; Enum. Cact. 147. Torr. & Gray, Fl. 1. 555. 

 Dietr. 3. 112. Spach, Hist. Veg. 13. 398. Walp. Rep. 2. 354. Salm, Cact. Hort. 

 Dyck. 243. Lab. Monogr. Cact. 481. Trecul, Bull. Bot. Soc. France, 1. 306. En- 

 gelm. PI. Upp. Miss. 192; Syn. Cact. 301 (45); Trans. Acad. St. Louis, 2. 200; 

 King's Rep. 5. 119 ; Simpson's Rep. 442. Engelm. & Bigel. Pac. R. Rep. 4. 48, 

 t. 24, f. 5 (seed). Walp. Ann. 5. 54. 



Cactus fragilis. Nutt. Genera, 1. 296. James, Long's Exped. 2. 138. Spreng. 

 Syst. 2. 497. Torrey, Ann. Lye. N. Y. 2. 202. Eat. & Wr. 163. 



? 0. brachyarthra. Engelm. & Bigel. Pac. R. Rep. 4. 47, t. 12, f. 9. Engelm. 

 Syn. Cact. 302 (46). Walp. Ann. 5. 54. 



O. fiilgida. Engelm. Syn. Cact. 306 (50) ; Cact. Mex. Bound. 57, t. 75, f. 18 

 (seed) ; Bot. Calif. 1. 250 (as O.fiik/ens). AValp. Ann. 5. 56. 



O. fusco-atra. Engelm. Pac. R. Rep. 4, t. 11, f. 4 ; Syn. Cact. 297 (41). Walp. 

 Ann. 5. 52. 



O. Grahami. Engelm. Syn. Cact. 304 (48) ; Cact. Mex. Bound. 55, t. 72. Walp. 

 Ann. 5. 55. 



O. hystricina. Engelm. & Bigel. Pac. R. Rep. 4. 44, t. 15, f. 5-7, & t. 23, f. 15 

 (seed); Syn. Cact. 299 (43); Ives' Rep. 14; Trans. Acad. St. Louis, 2. 200; King's 

 Rep. 5. 119; Simpson's Rep. 441. Walp. Ann. 5. 53. 



O. Kleiniae. DC. Rev. Cact. 118. Pfeiff. Enum. Cact. 171. Salm. Cact. Hort. 

 Dyck. 250. Walp. Rep. 2. 353. Engelm. Cact. Mex. Bound. 77. 



0. Wrirjhtii. Engelm. Syn. Cact. 308 (52) ; Cact. Mex. Bound. 59 & 77. Walp. 

 Ann. 5. 57. 



O. leptocaulis. DC. Rev. Cact. 118. Pfeiffer, Enum. Cact. 173. Walp. Rep. 

 2. 353. Salm, Cact. Hort. Dyck. 250. Lab. Monogr. Cact. 493. Scheer, Seem. 

 Bot. Herald, 293. Engelm. in Bot. Calif. 1. 250. 



