CACTACE®. 87 
Mountains about San Felipe, on the eastern declivity of the Californian Cordilleras, Parry ; 
_ common in the Gila valley, especially near the Casa Blanca, above the Pimas village, Schott: fl, 
in June.—Loosely ceespitose, not more than 4 or 6 or at most 8 stems together ; stems 5-10 or 
even 12 inches high, 2-3 inches in diameter ; radial spines 3-6 lines long; central ones 1-2 
inches long, upper one the shortest, lower one the longest. Flower rather low down on the 
plant, between 2 and 3 inches long; fruit at last naked, fleshy, 1} inch long, an inch in 
diameter ; seed 0.6-0.7 line long, similar to that of C. Fendleri, to tubercles running together, 
and forming irregular pits. 
14. C. poLyacantuus, E. in Wisl. Rep.: ovato-cylindricus, plerumque ramosissimus, cwspi- 
tosus, glaucescens ; costis 9-13 subcompressis obtusis interruptis ; areolis suborbiculatis remo- 
tiusculis seu demum confertis ; aculeis teretibus robustis rigidis rectis albidis seu e cinereo 
rubellis apice obscuris demum totis cinereis, exterioribus 8-12 parum bulbosis, lateralibus lon- 
gioribus, centralibus 3-4 bulbosis paullo robustioribus equilongis seu longioribus, junioribus 
seepe corneo-fuscoque variegatis ; floribus sub vertice lateralibus diu noctuque apertis ; ovarii 
pulvillis 16-20 tomentosis aculeolos 6-15 variegatos gerentibus; sepalis tubi inferioribus 
10-12 triangulari-lanceolatis aculeiferis, superioribus lineari-lanceolatis seu oblanceolatis 
spathulatisve mucronatis seu summis obtusis; petalis 18-22 spathulatis obtusis integris seu 
erosis chartaceis coccineis basi pallidioribus erecto-patulis ; tubo intus basi nudo, staminibus 
brevibus ; stylo exserto ; stigmatibus sub-8 erectis; bacca subglobosa ; seminibus majusculis 
irregulariter tuberculatis ; hilo subbasilari parvo angusto ; ans sea parcissime albuminoso; 
cotyledonibus brevibus incurvis. (Tab. LIV-LV.) 
A common plant at El Paso, Wright, Bigelow, Parry, Thurber, and as far south as the moun- 
tains west of Chihuahua, Wislizenus, on table-lands and mountains, and also on sand-ridges or 
stony hills: fl. March and April, fr. in June.—Heads 5-10 inches high, 24-4 inches in diam- 
eter, pale green or glaucous; areola }-1 inch apart; spines very variable; exterior ones not 
strictly radiating but spreading ; upper ones about 6 lines ; lateral and lower ones 9-12 lines 
long ; central spines in young specimens single, in older and more perfect ones always 3-4; 
in some hardly longer than the radial ones, 9-12 lines long, but usually longer, and sometimes 
2 or even 24 inches long; lower central spine always longer than the others. Flowers 2-3 
inches in length, spreading not quite so wide, remaining open day and night, often for 4 or 5 
days, and profusely adorning the plant for 4 or 6 weeks in succession ; petals rigid and somewhat 
concave, rounded, of a deep red or blood color; the base of the tube inside naked for 3 or 4 lines; 
stamens about 600; berry 3-1} inch long, greenish-purple, of a pleasant gooseberry taste ; 
seeds larger than in any other Echinocereus known to me, 0.8-0.9 line long, oblique; hilum 
small subbasilar ; embryo with some albumen, (which is not common in this genus,) large, a 
little curved ; cotyledons almost foliaceous, approaching the form observed in the cylindric Cerei. 
15. C. PAUCISPINUS (sp. nov.): ovatus seu ovato-cylindricus, perviridis, simplex, seu parce ra- 
mosus, costis 5-7 interruptis ; sulcis latis sursum acutis; areolis remotis; aculeis 3-6 seu 
rarius 7 robustis basi bulbosis rectis seu subrecurvis radiantibus, infimo pallidiore, ceteris rufis 
fascisve,,omnibus demum nigrescentibns, centrali nullo seu rarius singulo robusto subangulato 
atrofusco sursum verse seu porrecto ; seminibus obovatis obliquis subconfluento-tuberculatis, 
hilo basilari elliptico. (Tab. LVI.) . 
From the San Pedro to the mouth of the Pecos, on rocks and gravelly limestone hills, Wright, 
Bigelow.—Stems 5-9 inches high, 2-4 inches in diameter, not cwspitose like the last species 
