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gulatis compressis rectis seu curvatis laxe radiantibus; floris coccinei 
staminibus petala obtusa subsequantibus ; stigmatibus 8 - 10. 
Northern New Mexico, at Santa Fe, and to the east and westward : 
fl. June. — Stems 4-6 inches high, 2-3 in diameter, with sharp 
ridges, and very shallow grooves; spines 6-15 lines long. Flower 
2-3 inches long; petals rigid. Fruit unknown. 
18. C. phceniceus, E. in P. R. R. (C. coccineus, E. in Wisl. Rep. 
non Salm.) : ovatus seu subglobosus, obtusus, csespitosus, 9 - 11-cos- 
tatus; arefllis ovato-orbiculatis subconfertis; aculeis setaceis rectis, 
radialibus 8-12 albidis, superioribus cseteris paullo brevioribus, cen- 
tralibus 1-3 basi bulbosis teretibus paullo robustioribus ; staminibus 
petalis brevioribus ; stigmatibus 6-8. 
Northern New Mexico, from the Upper Pecos to Santa Fe, Zuni, 
and the San Francisco mountains : fl. May and June. — Heads 2-3 
inches high, 2 inches thick, generally forming dense hemispherical 
masses, often of a foot or more in diameter; radial spines 3-6, 
central ones 5-10 lines long. When there are several, the lowest one 
longest. Fruit unknown. 
C. conoideus, E. & B. 1. c. : ovatus, versus apicem acutatus, co- 
noideus, e basi parce ramosus 9—11 costatus; aculeis radialibus 
10 - 12 gracilibus rigidis, summis brevioribus, centralium 3-5 in- 
fimo 4-angulato elongato demum deflexo. 
Rocky places on the Upper Pecos, and perhaps San Francisco 
mountains. —Heads 3-4 inches high, few, of unequal height frpm 
one base; upper radial spines 2 - 5 lines, lateral ones 6-15 lines 
long ; upper central spines hardly longer than the lateral ones ; lower 
one 1-3 inches long, angular and often compressed. The Mexican 
C.gdfer, Otto, seems similar, but is a higher planL with much stouter 
spines. C. Rcemeri, Muhlenpf. A. G. Z. 1848/ffom Western Texas, J*. 
may belong here or to C. enneacanthus. A specimen among Dr. 
r ’s collections seems to unite this form with C. phceniceus , 
for the present it is perhaps best to leave our plant, as a variety 
19. C. polyacanthus, E. in Wisl. Rep.: ovato-cylindricus, csespi¬ 
tosus, subglaucescens, 9- 13 costatus; aculeis robustis rigidis rectis 
albidis seu rubello-cinereis, centralibus 3-4 bulbosi<£ paullo robusti¬ 
oribus sequilongis seu longioribus, junioribus ssepe fusco-variegatis,; 
stigmatibus 8. 
Common about El Paso, and thence to the mountains of Chihuahua: 
0 1 2 3 4 5 6 7 8 9 10 Missouri 
Botanical 
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cm 
