Tas. 7688. 
CEREUS viripirLorus. 
Native of New Mexico and Colorado. 
Nat. Ord. Cactem.—Tribe EcHINOCACTEAR, 
Genus Cuma. Haw. ,; (Benth. & Hook. f. Gen. Plant. vol. i. p. 849.) 
CzreEvs (Echinocereus) viridiflorus; subglobosus ovoideus oblongus v. demum 
cylindraceus, parce ramosus, ad 13-sulcatus, lete viridis, areolis ovato- 
lanceolatis oblongisve, aculeis 12-18 arcte radiantibus cum superioribus 
2-6 setaceis rubris albis variegatisve, lateralibus caeteris longioribus, 
centralibus 1-2 robustis rarius 0, floribus ad 1} poil. diam. apicem versus 
caulis lateralibus e flavo virescentibus, calycis tubo brevi aculeato, petalis 
apice bilobis, baccis parvis ellipsoideis spinulosis, seminibus tuberculatis. 
C. viridiflorus, Hngelm. in Gray Pl. Fendl. in Mem. Am. Acad. vol. iv. (1849) p. 
50; Syn. Cact. U.S. in Proc. Am. Acad. vol. iii. (1856) p. 278, et Addend. in 
Trans. Acad, St. Louis, vol. ii. p. 199; Cact. Whipple Exped. p 32; Cact. 
Mex. Bound. p. 28, t. xxxvi.; Cact. in King’s Expl. Rep. vk v. p. 118; 
in. Simpson’s Rep. 440. Bigelow, ay Rail. Rep. vol. iv. pp. 32, 36. 
S. Wats. Pl. Wheeler, p.9. Porter & Coulter Fl. Colorad. p.48. Coulter — 
Man. Rocky Mt. Bot. p. 110. Salm. Cact. Hort. Dyck. p. 192. Lab. 
Monogr. Cact. p. 319.—Bot. Works Engelm. pp. 124, 136, 158, 224, 227, 
231. 
Echinocereus viridiflorus, Hngelm. in Wisliz. Tour N. Mewic. p. 91. Férst. 
Handb. Cact. Ed. 2, p. 811. Schum. Gesamtbeschr. Kakt. p. 267. 
EK. Labouretianus, Lem. Cact. p. 57. 
E. Laboureti, Férst. /.c. 
Cereus viridiflorus is an interesting plant, as being the 
most northern representative of the vast genus to which 
it belongs, and which numbers upwards of 300 species. 
It is a native of Rocky Mountains of N. America, and its 
subsidiary chains, from the upper Platte River in Wyomin 
(about lat. 43° N.), south to the Rio Grande del Norte 
in New Mexico (about lat. 35° N.), Colorado being its 
headquarters. It would be interesting to know to what 
elevation it is found, but of this I find no record. Plants 
of it were received at the Royal Gardens, Kew, in 1897, 
along with other Cacti, from Mr. D. M. Andrews, N ursery- 
man, of Boulder, Colorado; they have proved to be so 
far hardy as to require the protection of a screen only in 
very cold weather. They flower in July. 
Deser.—Plant subglobose or ovoid, or elongating into 
DECEMBER Ist, 1899. 
