28 
gulatis compressis rectis seu curvatis laxe radiantibus ; floris coccinei 
staminibus petala obtusa subzequantibus ; stigmatibus 8 — 10. 
Northern New Mexico, at Santa Fé, 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. poaniceus, E. in P. R. R. (C. coccineus, E. in Wisl. Rep. 
non Salm.): ovatus seu subglobosus, obtusus, cespitosus, 9 — 11-cos- 
tatus ; areolis ovato-orbiculatis subconfertis; aculeis setaceis rectis, 
radialibus 8 ~ 12 albidis, superioribus ceteris paullo brevioribus, cen- 
tralibus 1-3 basi bulbosis teretibus paullo robustioribus ; staminibus 
petalis brevioribus ; stigmatibus 6-8. | 
orthern New Mexico, from the Upper Pecos to Santa Fé, 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. za 
C. conorpeus, 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 from 
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 1-38 inches long, angular and often compressed. The Mexican 
C. acifer, Otto, seems similar, but is a higher plant, with much stouter 
spines. C. Remeri, Muhlenpf. A. G. Z. 1848, from Western Texas, 
may belong here or to C. enneacanthus. A specimen among Dr. 
Bigelow’s collections seems to unite this form with C. pheniceus, 
where for the present it is perhaps best to leave our plant, as a variety 
or sub-species. _ 
19. C. poryacantuus, E. in Wisl. Rep.: ovato-cylindricus, cespi- 
tosus, subglaucescens, 9-18 costatus ; aculeis robustis rigidis rectis 
albidis seu rubello-cinereis, centralibus 3—4 bulbosio paulle robusti- 
oribus zquilongis seu longioribus, junioribus seepe fusco-variegatis ; — 
stigmatibus 8, 
Common about El Paso, and thence to Pm i COL haeh 
aes a 
