COMPOSIT.E. (COMPOSITE FAMILY.) 211 



linear, entire or pinnatifid: heads rather numorous and crowded in the cyme, 



rather small : ovaries papil/ose-hispidu/ous on the angles. Svnont. Fl. i.'aai. 



From Colorado to N. W. Texas ; mostly in saline soil. 



Var. borealis, Torr. & Gray. A foot down to a span high, at sninmit 

 bearing either numerous or few heads; these not rarely rayless: leaves tliick- 

 ish ; radical from roundish with abrupt or even truncate base to cunettli-ohorafe 

 and cuneate-spatidate, ^ to I inch long, slender-petioled ; cauline seldom much 

 pinnatifid: akenes glabrous. — Mountains of Colorado, California, and north- 

 ward, where it extends across the continent. 



Var. croceus, Gray. A span to a foot or two high, glahrous or early 

 glahrate: leaves somewhat succulent; radical oblomj to roundish, sometiims 

 hjrate; cauline very various : heads usually numerous in the cyme: flowers 



saffron-colored or orange, at least the rays, or these sometimes wanting. 



Proc. Acad. Philad. 1863, 68. Mountains of Colorado to Montana, Nevada, 

 and California. 



Var. subnudus, Gray. Wholly glabrous or glabrate, slender, a span or 

 two high, bearing 2 or 3 small cauline leaves and a solitarg head, or not rarelv a 

 pair: radical leaves few, spatulate or obovate, sometimes roundish, half-inch 

 or less long, occasionally lyrate; cauline incised or sparingly pinnatifid : rays 

 conspicuous. — Synopt. Fl. i. 391. Wyoming to British Columbia and Cali- 

 fornia. 



19. S. Fendleri, Gray. Ven/ canescent with foccose wool, in age taniily 

 glabrate: stems rather stout, 5 to 15 inches high, leafy, the larger plants 

 branching : leaves oblong-lanceolate or narrower ; radical sotnetimes almost entire, 

 more commonly like the cauline sinuatelg pectinate-pi nnatijid or even pinnately 

 parted, the short oblong divisions incisely 2 to 4-lobed : akenes glabrous. — PI. 

 Fendl. 108. Mountains of Colorado and New Mexico. 



2. Leaves mostlg once pinnatelg divided or parted and again lobed or incised. 



20. S. eremophilus, Richards. Stems freely branching, leafy up to the 

 inflorescence: leaves mostly oblong in outline, laciniately-pinnatifid or pin- 

 nately parted, the lobes usually incised or dentate: heads in corvmbiform 

 cymes, short-peduncled : bracts commonly purple-ti])ped : rays 7 to 9 : akenes 

 minutely papillo.se or glabrous. — In the Rocky Mountains, from New Mexico 

 to the Mackenzie River. 



^^ ++ ++ ++ Stems hafg, numerously or somewhat equablg so up to the top: lenrrs 

 all pinnateli/ lobed or parted or entire, their divisions {or the u'hole leaf) linear 

 to filiform. 



21. S. Douglasii, DC. Lignescent and sometimes decidedly shrubby 

 at base, many-stemmed, a foot or two or even 5 or 6 feet high, either white- 

 tomentose or glabrate and green : leaves thickish, sometimes all entire and 

 elongated-linear, more commonly pinnately parted into 3 to 7 linear or nearly 

 filiform entire divisions : heads several or numerous and cymose, from 4 to ^ 

 inch high : rays 8 to 1 8 : akenes canescent with a fine strigulose pubescence. — 

 S. longilobus, Benth. ; S. filifolius, Xutt. Plains and hills, Nebraska to Texa* 

 and westward to California. 



