TTfT 
CATALOGUE. 
rei 7 niiJ 
Opuntia hystricina, Eng. & Big. .Very similar to the preceding and 
ie Desel 
fobably only a form of it, with longer and more numerous gray or reddish 
^ard to 
pines, longer yellow bristles, and usually smaller flowers.-—New. Mexico ; : 
tetween Walker and Carson Rivers, (H. Engelmann,) and Owen’s Valley, 
Gabb,) Nevada. [Found abundantly in Monitor and Thousand Spring Val-. 
1 powers either purple or sulphur*yellow, scarcely smaller, w.] (436.): y.v 
Opuntia rutila, Nutt. Similar to O. Missouriensis; joints often larger, 
’ by 4', covered with closely set bunches of mostly radiating and deflexed 
Qt ; UD^pines, the larger ones flattened and often twisted; flowers rose-red; ovary 
e -’ a Ancl dry berry spiny.—From Fillmore to St. George, Utah, (Dr. Palmer; 
^ ^«J. E. Johnson ;) a rediscovery of Nuttall’s long-lost plant, who found it near 
^ er $ithe Green Riv^ in Southern Wyoming. 
Opuntia erinacea, Eng. & Big. JPac. R. R. Surv. 4. 47, 1. 13. Diffuse) 
^g- (ascending; joints thick, ovate, 2-2 y long, or sometimes elongated and almost 
icle, icylindric, densely covered with clusters of 3-5 radiating spines, slender, 
eatoM-lJ 7 longUvery rigid, reddish-gray, with 2-4 smaller ones below; berry 
iefei;|pvate, lUTon^J with crowded clusters of 12-20 mostly deflexed spines, 3-6" 
ofSilong.— Near Mohave Creek, Southern California, (Bigelow.) [A specimen in 
Herb. Gray., collected by Dr. Bloomer near Virginia City, Nevada, (not seen 
A, oit by Dr. Engelmann,) may belong to this species, w.] 
ig ijj'iH ^funtia fragilis, Nutt. Joints small, ovate, compressed or tumid or 
;, v even terete, 1-1 J' long, fragile; larger spines 4, cruciate, mostly yellowish 
r _, brown, with 4-6 smaller white radiating ones below; bristles few ; flowers 
]p [ t smaller, yellow; fruit smaller, with 20-28 clusters of bristles, only the upper 
; a ] t [ ones with a few short spines ; seeds few, regular.—Qn the Upper Miss#fm 
and Yellowstone, southward probably to New Mexico. [Found at the west 
base of the Wahsatch in Jordan Valley. Specimens not seen by Dr. Engel¬ 
mann, but doubtless of this species, w.] (437.) y 
- i Opun'5^1 (Cylindro£untia) pulch^Aa, Eng. Low^S 10' high; spread- * 
mg; joije^s small, slender, 1-3' §"■ thick, ckrvg^o, tub erected, with 
bunches of straight radiating spines 6-18" long, from white t(f nearly black, 
one or more of the inner longer ones flattened ; flowers purple, V/ or less in 
diameter ; • ovary and dry berry bearing numerous flexible not barbed bristles.— ‘ 
Near Walker’s River, Nevada, (H. Engelmann, Gabb.) [Frequent in the 
valleys of Western Nevada from the Trinity Mountains to Monitor Valley ; 
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