Opuntia.] CACTACEiE. 409 



O. rutila. Nutt.; Torr. & Gray, Fl. 1. 555. Dietr. 3. 116. Gray, Proc. Acad, 

 riiilad. 1863, 6i. Engelm. in King's Rep. 5. 119; Bot. Calif. 1. 248. 



0. erinacea. Engelm. & Bigel. Pac. R. Rep. 4. 47, t. 13, f. 8-11, & t. 24, f. 4 

 (seed). Engelm. Syn. Cact. 301 (45) ; King's Rep. 5. 119. Walp. Rep. 5. 53. 

 O. Schottii. Engelm. Syn. Cact. 304 (48) ; Cact. Mex. Bound. 54, t. 73, f. 1-4. 

 Walp. Ann. 5. 54. 



O. serpentina. Engelm. in Am. Journ. Sci. 2. 14. 338; Syn. Cact. 300 (50) ; 

 Cact. Mex. Bound. 56; Bot. Calif. 1. 250. Engelm. & Bigel. Pac. R. Rep. 4. 50. 

 Walp. Ann. 5. 55. 



1 Cereus {'^) Californicus. Torr. & Gray, Fl. 1. 555. Engelm. in Am. Journ. 

 Sci. 2.. 14. 338. 



O. setispina. Engelm. ; Salm, Cact. Hort. Dyck. 239. Lab. Monogr. Cact. 406. 

 Engelm. Syn. Cact. 294 (38). Walp. Ann. 5. 51. (Chihuahua.) 

 O. sphcerocarpa. Engelm. & Bigel. Pac. R. Rep. 4. 47, t. 13, f. 6-7, & t. 24, f. 3 

 (seed). Engelm. Syn. Cact. 300 (44). Walp. Ann. 5. 53. 

 Var. (?) Utahensis. Engelm. in Hayd. Rep. 1871, 483. 



O. stenopetala. Engelm. Syn. Cact. 289 (33) ; Cact. 'Mex. Bound. 40 & 70, t. 66. 

 Walp. Ann. 5. 48. Young, Fl. Texas, 278. (Northern Mexico.) 

 O. Strigil. Engelm. Syn. Cact. 290 (34) ; Cact. Mex. Bound. 47, t. 67. Walp. 

 Ann. 5. 48. Young, Fl. Texas, 278. 



O. tenuispina. Engelm. Syn. Cact. 294 (38) ; Cact. Mex. Bound. 50, t. 75, f. 14 

 (seed). Walp. Ann. 5. 50 (as 0. minor). 



O. tessellata. Engelm. Pac. R. Rep. 4. 52, t. 21, & t. 24, f. 20 (seed) ; Syn. Cact. 

 309 (53) ; Cact. Mex. Bound. 60; Bot. Calif. 1. 249. Torrey, Pac. R. Rep. 5. 360. 

 Walp. Ann. 5. 57. Watson, Pi. Wheeler, 9. 



0. ramosissima. Engelm. in Am. Journ. Sci. 2. 14. 339. 

 O. Thurberi. Engelm. Syn. Cact. 308 (52) ; Cact. Mex. Bound. 59. Walp. Ann. 

 6. 57. (Sonora.) 



O. tortispina. Engelm. & Bigel. Pac. R. Rep. 4. 41, t. 8, f. 2, 3, & t. 23, f. 1-5 

 (seeds). Engelm. Syn. Cact. 293 (37) ; Simpson's Rep. 441. Walp. Ann. 5. 50. 

 O. Tuna, Mill. Engelm. in Wisliz. Rep. 16; Am. Journ. Sci. 2. 14. 338; Syn. Cact. 

 290 (34) ; Bot. Calif. 1. 248. Thurber in Gray, PI. Thurb. 302. Bigelow, Pac. R. 

 Rep. 4. 16. 



0. BonplancUi. HBK. Nov. Gen. 6. 69. 

 O. tunicata.. Otto ; Pfeiffer, Enum. Cact. 170. Salm, Cact. Hort. Dyck. 249. 

 Walp. Rep. 2. 352. (Northern Mexico.) 



0. exuviata. DC. Rev. Cact. 118, excl. vars. Pfeiffer, 1. c. AValp. 1. c. 



0. kdhispma. Engelm. Syn. Cact. 304 (48) ; Cact. Mex. Bound. 55, t. 73, 

 f. 5, 6. Walp. Ann. 5. 55. 



O. vulgaris. Haworth, Syn. PI. Succ. 190. Salm, Obs. Bot. 9. DC. Prodr. 

 3. 474. Don, Mill. .3. 175. Beck, Bot. 135, in part. Torr. & Gray, Fl. 1. 555, 

 in part. Dietr. 3. 112. Pfeiffer, Enum. Cact. 149. Walp. Rep. 2. 347. Loud. 

 Arb. 2. 907, f. 2474. Engelm. Syn. ' Cact. 297 (41); Torrey, Bot. Bull. 2. 34. 

 Scheele, Roem. Texas, 435. Lab. Monogr. Cact. 477. Engelm. & Bigel. Pac. R. 

 Rep. 4. 41, t. 5, f. 2, 3, & t. 23, f. 1-5 (seeds). Walp. Ann. 5. 52. Chapman, 144. 

 Gray, Manual, 185. Helmsley, Garden, 11. 274. 



Cactus Opuntia. Linn. Spec. 468, in part. Walter, 146. Bartrani, Trav. 163. 

 Willd. Spec. 2. 943. Michx. Fl. 1. 282. Persoon, 2. 22. Pursh, 327. Ni-tt. Gen. 



