398 CACTACEZ. [Cereus. 
C. Greggii. Engelm. in Wisliz. Rep. 18; Emory’s Rep. 156, f.6; Am. Journ. Sci. 
2. 14. 339 & 446; Syn. Cact. 287 (81); Cact. Mex. Bound. 40, t. 63,64. Walp. 
Ann. 3. 894 & 5. 46. Bigelow, Pac. R. Rep. 4. 86. Young, Fl. Texas, 276. 
C. Pottsii. Salm, Cact. Hort. Dyck. 208. Labouret, Monogr. Cact. 364. 
Scheer, Seem. Bot. Herald, 293. 
Var. transmontanus. Engelm. Syn. Cact. 1. c.; Cact. Mex. Bound. 41, t. 65. 
C. hexaedrus. Engelm. & Bigel. in Pac. R. Rep. 4. 34, t. 5,1. Bigelow, same, 
36. Engelm. Syn. Cact. 285 (29). Walp. Ann. 5. 45. 
C. longisetus. [Engelm.; Bigelow, Pac. R. Rep. 4.36. Engelm. Syn. Cact. 280 
(24); Cact. Mex. Bound. 82, t.45. Walp. Ann. 5. 43. 
C. Mohavensis. Engelm. & Bigel. Pac. R. Rep. 4. 33, t. 4, f.8. Bigelow, same, 
36. Engelm. Syn. Cact. 281 (25). Walp. Ann. 5. 43. 
Var. (¢) Zuniensis. Engelm. & Bigel.l.¢c., £9. Engelm.1.c. Walp. 1. e. 44. 
C. monocLtonos, DC? Chapman, 144. 
C. paucispinus. Engelm.; Bigelow, Pac. R. Rep. 4.54 & 36. Engelm. Syn. 
Cact. 285 (29); Cact. Mex. Bound. 37,t.56. Walp. Ann. 5.45. Young, FI. 
Texas, 275. Porter, Fl. Col. 49. 
C. pectinatus. Engelm. in Gray, Pl. Fendl. 50; Syn. Cact. 279 (25); Cact. 
Mex. Bound. 32. Salm, Cact. Hort. Dyck. 192. Scheer, Seem. Bot. Herald, 292. 
(Northern Mexico.) 
Echinocactus pectinatus. Scheidweil, Bull. Brux. 5. 492. Walp. Rep. 2. 321. 
Echinocereus pectinatus. Engelm. in Wisliz. Rep. 25. Walp. Ann. 3. 896. 
Echinocactus pectiniferus. Lemaire, Cact. Nov. 25. Walp. Rep. 2. 822. Hook. 
Bot. Mag. t. 4190. 
C. pectiniferus. Labouret, Monogr. Cact. 820. 
Var. (?) armatus. Poselger, Allg. Gart. Zeit. 21.154. Engelm. Syn. Cact. 1. ¢. 
Walp. Ann. 5. 48. 
Var. (7) rigidissimus. Engelm.1.c.; Bot. Mex. Bound. 31. Walp. 1. ec. 
C. pheeniceus. Engelm. in Bigel. Pac. R. Rep. 4. 84, t. 4, f. 1-3. Bigelow, same, 
36. Engelm. Syn. Cact. 284 (28); Ives’ Rep. 13. Walp. Ann. 5. 45. Porter, Fl. 
Col. 49. 
Echinopsis octacantha. Muhlenpf. in Allg. Gart. Zeit. 16. 19 (Bot. Zeit. 6. 597). 
Scheele, Roem. Texas, 435. Walp. Ann. 2. 685. 
Echinocereus coccineus. Engelm. in Wisliz. Rep. 9. Walp. Ann. 2. 684 & 
3. 895. 
C. coccineus. Engelm. in Gray, Pl. Fendl. 50 & 51, not DC., nor Salm. Salm, 
Cact. Hort. Dyck. 190. Lab. Monogr. Cact. 316. 
C. Remerii. Engelm. in Gray, Pl. Fendl. 50; Gray, Pl. Lindh. 204; Syn. Cact. 
285 (29). Salm, Cact. Hort. Dyck. 189. Lab. 1. ¢. Walp. Ann. 5. 49. 
Mamillaria aggregata. FEngelm. in Emory’s Rep. 155, f. 1. 
C. polyacanthus. Engelm. in Gray, Pl. Fendl. 50; Cact. Mex. Bound. 37, 
t. 54,55; Syn. Cact. 284 (28). Salm, Cact. Hort. Dyck. 189. Lab. Monogr. Cact. 
315. Bigelow, Pac. R. Rep. 4. 36. Walp. Ann. 5. 45. 
Echinocereus polyacanthus. Engelm. in Wisliz. Rep. 20. Walp. Ann. 3. 895. 
C. princeps. Hort. Wurtzb.; fide Pfeiffer, Enum. Cact. 108. Salm, Cact. Hort. 
Dyck. 49. Lab. 1. ¢. 373. Engelm. in Trans. Acad. St. Louis, 2. 202. 
C. variabilis. FEngelm. in Gray, Pl. Lindh. 205, not Pfeiff.; Syn. Cact. 287 (31); 
Cact. Mex. Bound. 40, t. 60, f. 1-4. Young, Fl. Texas, 276. 
2 C. Vasmerii. Young, Fl. Texas, 276. 
