118 
spines, 3-6" long, and about 4 darker (yellow, brown or black) stout and an 
gular, straight or curved* central ones, 1-3' dong; flowers very numerouf 
brSTIA HYSTI 
Jy only a fori 
eilblcll UllCOj X—1 yello 
large, (2 J' broad or more,) purple, diurnal.—From Salt Lake ^Walker ar 
Engelmann) to Silver Peak in the Sierras, (Gtabb,) and southward to South 1 * 
erh Utah (Johnson) and the Mohave country (Bigelow.) Jr £ 
Gereus viridiflorus, Eng. With very short pectinate pale and reddish^ ’ 
brown spines and small green flowers.—Common in Colorado, and may lx' ’ ier P ur l' 
/ t . jj, , .J»mmiRUTiLi 
found m Utah. 
Opuntia^(Platopuntia) basil aris, Eng. & Big. Low; joint^W^l covere vu 
long, obovate or triangular, proliferous from their base, pubescent, unarmed jr - ri on 
but beset with numerous dense fascicles'of short brownish bristles, as 8pID ’ 
the ovary; flowers large, 2£' in diameter, purple; fruit dry, with large W teon “; re 
thick seeds.—Nevada, in the Silver Peak region south of Walker’s lais&wRn^rin 1 
(Gabb,) and southward. .^■btiierlvac 
Opuntia SPHA 3 EOCAEPA, Eng. & Big., Var. (?) Utahensis, Eng. Pros% joints thu 
trate ; joints small, orbicular-ovate, 2 - 3 ' long and nearly as wide, thick if, densely c. 
spines in the axils of the minute subulate leaves, few and mostly weak of solf«(very rig 
tary or none, with few and very short bristles; flowers; 3 ' in diameter, (pale-!! I'^Jwith 
yellow; fruit oval, almost spineless, at last dry.—In the pass west of Steptow Mohave 
Valley, Utah, (H. Engelmann.) collect 
: Opuntia Missouriensis, DC. Prostrate ; joints medium-sized, -olfcva^Engelmann,) 
or almost orbicular, tuberculate; leaves minute, subulate, all bearing inthebteTiA fragi 
axils 5-10 radiating or deflexed spines, 1-2'long, often with a fe^erec'ttc, 1-lJ' l 
darker ones; flower large, 3 ' broad, yellow; ovary and dry fruit spiny.—Quitpith 4-6 sn 
variable, especially in the stoutness and color of the. spines. From the Upp#. yellow; fri 
Missouri to the Canadian and New Mexico, and throughout the SaltlLaMh few sin 
Basin. [Found in Salt Lake Valley and the Wahsatch; 4,200-6, 500-flBiHowstone, si 
altitude; July, iii flower.. Joints sometimes 6' long and 4' broad, w.] (434:.! the Walisa 
[Witl^maller creepingwoints, the numi 
spines Singly refl^^d. Above A^aSgatch Station 
ains; 7,-OO^feet altituu^jv.] (435.) 
ictous fascicle^of short afeulm 
on n^the WahsS^^MoT^n 
OPUlfflA, Tourn. Sepals petals united beyond tlie sepal-bWing ovary into a very shot 
Berry puW or dry. Seeds largeWhitish, bony, flat, Vostly irregular. Embryo curved around tl 
albumen; cotyl^mns foliaceous, usuall^contrary to the sid\ of the seed.—Jointed, the joints broad an 
flat, or clavate or cylindrical, bearing bushes of barbed spiles and bristles in the axils of small|^g| er; , 
deciduous leaves, an^rom their middle ralter large flowers, gening only 
than long. The above\ecies belong to the Iteo sections 
§ Platopuntia, Joints flattened^embryo somewhatepiral. 
§ Cylindropuntia^E^j. Joints clavate olkcylindrical; em^yo nearly circular. 
ftiit doubtle: 
XT& (Cyi 
4 small, 
°f straigl 
sunshine and much 
ovary ai 
Inker’s R ; 
of Wester 
7 8 9 10 Missouri 
Botanical 
copyright reserved garden 
cm 
