CATALOGUE. 
203 
Crepis glauca, T. & Gr. Perennial, smooth and somewliat glaucous ; 
leaves all radical, linear-spatulate, tapering into a sliort-winged petiole, n])ic- 
ulate, nearly entire and deeply runcinate on the same plant; stems 1-2° high, 
with small linear bracts at the base of the 2-3 slender peduncles ; involu- 
cres many-flowered, smooth, slightly calyculate, the proper scales linear- 
lanceolate, scarious-margined ; achenia smooth, 8-10-ridged, slightly taper- 
ing upward. — Heads smaller than in the last, the smoother forms of which 
it approaches perhaps too closely. Plains of Nebraska to Oregon, (Geyer.) 
Ruby Valley, Nevada, and on the foot-hills near Salt Lake City ; 4,500- 
6,000 feet elevation ; May-July. (713.) 
Crepis Andeesonii, Gray. Perennial, 1-2° high ; leaves linear-spatu- 
late or oblong-lanceolate, slightly toothed, runcinate or laciniate-pinnatifid, 
glabrous, like the sparingly branched and leafless scapes ; bracts at the base 
of the mostly monocephalous branches small and linear ; involucre of sj^ar- 
ingly puberulent herbaceous lanceolate unequal scales, imbricated in 2-3 
rows, many-flowered ; achenia smooth, angled and many-ridged, fusiform 
and tapering into a short beak. — In habit much like the last, but with a well- 
marked imbricated involucre. Carson City, Nevada, (305 Anderson !) Hot 
springs in Grass Valley and Reese Valley,. Nevada ; 4,500-5,000 feet eleva- 
tion; June, July. (714.) 
Crepis occidentalis, Nutt. Perennial, canescent and scurfy-tomentose ; 
stems 6-18' high, branching, leafy ; radical leaves with the petioles 6-9' long, 
lanceolate, tapering both ways, acuminate, more or less deeply runcinate- 
pinnatifid, with acute often toothed lobes ; cauline leaves similar, but smaller 
and sessile ; heads corymbed, 11-35-flowered ; involucres calyculate with a 
few loose bractlets, the proper scales 8-10, 6-8" long ; mature achenia rather 
stout, 3" long, tapering to the apex, evidently 10-striate. — This species varies 
greatly in size, shape of leaves, and number of flowers in a head, l)iit it has 
larger and looser calyculate bractlets than the next, and a canescent or some- 
times hispidulous involucre, and a greater nunilx'i- of flowers in a head. Ore- 
gon and California to Nevada, Utah, and Colorado; Carson City, (Ander- 
son ;) Salt Lake City, (Mrs. Carrington.) From Western Nevada to the 
Wahsatch, and on the shore of Stansbury Island ; 4,300-8,000 feet elevation; 
May-July. (715.) 
Var. gracilis. (C acuminata, Var. gracilis, Torrey, Ms.) Stem very 
slender, bearing 3-6 narrow 9-14-flowered heads; leaves narrowly hnear, 
