CATALOGUE. 153 
than the disk-flowers.—Alpine summits of Colorado (515, 494). Near to 
Erigeron glandulosum, Porter. 
ERIGERON ARMERIAFOLIUM,* Turez. (EZ. lonchophyllum, Hook. in Bot. 
King’s Exped.)—4-8’ high; many stems from a single root; entire plant 
hispidly pilose; root-leaves narrowly oblanceolate, tapering into long, 
slender petioles; stem-leaves sessile, linear; inflorescence corymbose or 
racemose, with a single head terminating a branch; scales of the involucre 
lax, hardly in two series, acute, and the purple tips often taper-pointed; 
achenia cylindrical, hairy; pappus with few or no smaller bristles inter- 
mixed; rays very narrow, longer than the involucre—Twin Lakes, Colo- 
rado (527). 
Erigeron Beviipiastrum, Nutt—Like the following, except “in having 
a simple and wholly deciduous pappus, and its achenium is tipped with a 
broad and white epigynous disk.” See Gray, in Proc. Amer. Acad. vol. viii, 
648.—Sierra Blanca, Arizona, at 9,000 feet (811). 
ERIGERON pDiveRGENS, T. & G. (£. Bellidiastrum, Nutt, D. C. Eaton © 
in Bot. King’s Exped.) Vid. Gray, /. c—Camp Grant (383), Arizona, and 
from the Zuni Villages, New Mexico (169), where it is probably E. cinereum, 
Gray, Pl. Fendl. From MecArthy’s Ranch in New Mexico we have (100) 
a typical E. divergens. . 
ERIGERON FLAGELLARE, Gray (Pl. Fendl. p. 68).—Perennial, 6-10’ 
high, many slender stems arising from the same root; whole plant strigulose 
puberulent; lowest leaves spatulate or oblanceolate, narrowed to a petiole; 
upper leaves linear, sessile, 4-7” long; heads terminating the erect branches, 
which are naked near the summit; scales of the involucre linear, acute, 
with scarious margins; ligules slender, very numerous, white or slightly 
rose-colored; pappus in (both ray- and disk-flowers) two series, the exterior 
short, squamellate, the interior longer —A well-marked species, readily recog- 
nized at sight by its horizontal, flowerless stolons. Apex, Colorado (518), and 
Santa Fé Creek (25), whence doubtless it was first taken by Mr. Fendler. 
-Erigeron pe.puinirouium, Willd. (Polyactidium delphinifolium, DC. 
Prod. v, 281-282.) — Perennial, with many erect, leafy, slender stems 
from the same root, hispidly pubescent; lower leaves pinnately parted or 
*See Gray, FI. Cal. 1, p. 326. 
