20 
* * Eriocarpi. 
14. E. potycepnatus, E. & B. in P. R. R.: ovatus seu demum 
cylindricus, e basi ramosus; costis 13-21 acutis; aculeis robustis 
compressis annulatis plus minus curvatis rubellis, radialibus 4-8, in- 
fimo deficiente, superioribus (si exstant) gracilioribus; centralibus 4 
angulatis compressis, superiore latiore suberecto vel sursum curvato, 
inferiore longiore decurvo ; floribus flavis dense lanatis ; bacca sicca ; 
seminibus magnis angul&tis. 
On the Mojave, Colorado, and Gila Rivers: fl. February and 
March. — Single only when young, forming bunches of 20-30 cy- 
lindric equal-sized heads when older; the largest seen were 2-24 
feet high and about 10 inches in diameter. Exterior spines 1 — 2, in- 
terior ones 14-3}, inches long. — Shape very much like the last, 
but the flower very distinct. 4 
15, E. Parryi, E. in B. C. R.: simplex, globosus vel depressus ; 
costis 13 acutis ; aculeis robustis angulatis annulatis albidis, radialibus 
8-11, rectis s. paullo curvatis superioribus gracilioribus, infimo defi- 
ciente, centralibus 4 paullo longioribus robustioribus, infimo longiore 
decurvo; bacca sicca dense lanata. 
West and southwest from El Paso. — Plant always single ; largest 
specimens 8 — 12 inches high by 10-15 in diameter. — Very similar 
to the last ; but apparently distinct by the manner of growth and the 
white spines. Unfortunately, no seeds were collected. 
16. E. portzontuatonivs, Lem., var. cENTRISPINUS, E.in B.C. R.: 
glaucus, depressus seu demum ovatus ; costis 8 obtusissimis latissimis ; 
areolis orbiculatis basi truncatis; aculeis robustis compressis annulatis 
recurvatis rubellis demum cinereis, radialibus 5-7, superioribus de- 
bilioribus, infimo deficiente, centrali singulo robustiore decurvato; 
floribus purpureis dense lanatis; bacca sicca lanata; seminibus mag- 
nis angulatis. 
From Dojiana, above El Paso, to the Pecos, and southward: fl. 
April and May. — Plant 2-8 inches high and 3-6 in diameter; 
spines 2 — 14 inches long, nearly equal. Flower 24 inches long, but 
"partly enveloped in dense wool. The original E. horizonthalonius is 
said to have no central spine, and linear-lanceolate acuminate pale 
rose-colored petals: in our plant the petals are oblong-lanceola, and 
obtuse 
17. E. Texensts, Hopf. (E. Lindheimeri, E. in Pl. Lindh. 1845) : 
