218 COMPOSITE. (COMPOSITE FAMILY.) 



simple and larger with compound open cyme : leaves oblong, thin, upper 

 with usually narrowed sessile base, lower tapering into petiole : involucre of 

 linear-lanceolate bracts, pale or livid, mostly glabrous or nearly so, not rarely 

 a few bristly hairs. — From Colorado and Utah to California and British 

 Columbia. 



-i- +- Flowers yellow: stems rather scapose (2 to several-leaved) : leaves entire or 

 slightli/ denticulate. 



7. "EL. cynoglossoides, Arvet. Stem a foot or less high (either from 

 naked base or more commonly a radical tuft of leaves), simple, 2 to several- 

 leaved, bearing few or several cymosely disposed heads, setose-hirsute or 

 hispid at base : leaves lanceolate to spatulate-oblong, at least the lower con- 

 spicuoushj setose-hirsute; upper sometimes glabrous: involucre glandular, some- 

 times as also peduncles glandular-hispidulous : ahenes rather short-columnar: 

 pappus whitish. — Gray, Proc. Am. Acad. xix. 68. H. Scouleri, Hooker, partly. 

 N. W. Wyoming and Montana to Oregon and California. 



8. H. Fendleri, Schultz Bip. Subscapose, not rarely one or two leaves 

 toward base of the simple or paniculately branching stem, sparsely setose- 

 hirsute : radical leaves spatulate or broader ; cauliue verging to lanceolate, 

 reduced above to linear bracts : heads few and racemiform-paniculate, or more 

 numerous and corymbosely disposed : involucre puherulent or ylabrate, with or 

 without scattered setose hairs : ahenes tapering from near the base to summit, 

 sometimes reddish, at length commonly blackish : pappus copious, soft, sordid- 

 whitish. — Colorado and New Mexico. 



77. CREPIS, L. 



Annuals or (ours) perennials, Avith soft white pappus and narrow-necked 

 or beaked akenes (some truncate or merely tapering upwards) : leaves entire 

 or inclined to be pinnatifid : flowers all yellow. 



* Low or depressed, branched from the base, ivholhj glabrous, bearing numerous 



clustered heads: involucre of narrowly linear obtuse equal bracts: akenes nar- 

 row, lO-striate, having at summit a disk bearing the pappus. 



1. C. nana, Kichards. Forming depressed tufts on creeping rootstocks : 

 leaves chiefly radical, obovate to spatulate, entire, repond-dentate, or lyrate, 

 commonly equalling the clustered scapes or stems : heads in fruit nearly 

 ^ inch high : akenes linear, unequally ribbed, obscurely contracted under the 

 moderately dilated pappiferous disk. — Alpine mountain summits in Colorado 

 and California, thence fnr northward. 



2. C. elegans, Hook. Man y-stemmed from a tap-root, diffusely branched ; 

 leaves entire or nearly so ; radical spatulate, cauline from lanceolate to linear : 

 heads smaller : akenes linear-fusiform, minutely scabrous on the equal narrow 

 ribs, attenuate into a short slender beak, which is discoid-dilated at summit. — 

 From Montana and the Dakotas to the Saskatchewan. 



* * More robust and taller, with scapiform or feiv-leaved stems and larger heads: 



akenes thicker, not dilated-discoid at the insertion of the pappus. 

 •(- No canescent pubescence: foliage mostly glabrous: involucre many-flowered ; 



