ii<^rudo. COMPOSITE. 393 



cled: involucre campanulate or narrower, minutely bracteolate; proper bracts commonh- 

 purple-tipped : rays 7 to 9, 2 or 3 lines lung : akeues either miuutL-ly papiUose-cinereoun or 

 glabrous. — A pp. Fraukl. Journ. ed. 2, 31; Hook. Fl. i. 3.34; Tui-r. & Gray, Fl. ii. 444 ; 

 Eaton, Bot. King Exp. 192. — Sliady moist ground, from Mackenzie River and Saskatch- 

 ewan, along the Kocky ilouutains to tho.~e of Xew -Me.\iro, Utah, and Arizona; first coll. by 

 Richardson. In caiions of S. Arizona, a form with narrowest and "even linear lobes to the 

 leaves, cull. Lemmon. 



++ *+ "^ ++ ++ ++ Stems leafj', numerously or somewhat equably so up to the top, all pin- 

 natcly lobed or parted, or when entire naiTowly linear. 



= Leaves comparatively broad, pinnatifid and laciniate : early glabrate if not glabrous. 

 S. Clarkianus, (iitAi-. stems strict and simple, 3 or 4 feet high, striate-angled : leaves 

 lanceolate ; caaline 4 to 7 inches long, sessile, simply pinnatifid or laciulate-dentate ; the 

 salient lobes or teeth lanceolate or triangular, very acute: heads su\eral, cymose or some- 

 what paniculate, fully half-inch high, sli.jrt-peduncled ; involucre of subnlate-linear bracts, 

 and several more slender loose calycnlate ones : rays 4 or 5 lines long, narrow. — Proc. Am. 

 Acad. vii. 362, & Bot. Calif, i. 413. — iloist gi-onnd, in the Sierra Nevada, California, at 8,000 

 to 9,000 feet, Yosemite to Kern Co., Bvlnntltr, Rothrock, &c. ; first coU. at Clark's Ranch. 

 = = Leaves or their divisions from linear to filiform, or broader toward the base of the stems. 

 »S. Douglasii, DC. Lignescent and sometimes decidedly shrubby at base, many-stemmed, 

 a foot or two or southward even 5 or 6 feet high, either white-tomentose or glabrate and 

 green : leaves thicki>li, sometimes all entire and elongated-linear (mostly 2 to 4 lines long 

 and 1 or 2 lines wide), more commonly pinnately parted into 3 to 7 linear or nearly filiform 

 entire divisions ; heads several or numerous and cymose, from a third to lialf an inch high, 

 obscurely bracteolate, the proper bracts linear: rays 8 to 18, a third to half an inch long: 

 akenes canescent with a fine strigulose pubescence. — Prodr. vi. 429 ; Torr. & Gray, PI. ii. 

 443 ; Gray, Bot. Calif, i. 411. .S'. Ih-'jiumcmtanus, DC. 1. c. (Jlonterey, CaliCornia), &, probably 

 iS'. stachadiformis, DC. 5. longilobus, Benth. PI. Hartw. 18; Gray, PI. Fendl. 108. S. fdi- 

 folius, Xutt. Trans. Am. Phil. Soc. vii. 414. .S. Riddellii, S.JiUjoltus, & .V. spart^otdes, Torr. 

 & Gray, 1. c. S. fastiffiatus ? Gray, PI. AVright. ii. 99, a peculiar and abnormal broader-leaved 

 form. — Open plains and hills, Nebraska to Texas, S. Utah, Arizona, .S. California, and 

 northward near the Pacific coast to Lake Co. 



§ 2. Perennial ? vi.sci(ily pubescent : heads conspicuously radiate. 



S. Parryi, Gray. Rather stout, a foot or two high, branching, sparsely leafy to the inflo- 

 rescence, pubescent with short and spreading and some longer viscid hairiness: root not 

 seen: leaves irregularly dentate, oblong or the lowest sjiatulate, auriculate-clasping at base: 

 heads cymose or somewhat paniculate, about half-inch bjng : involucre sparsely calycnlate : 

 akenes strigulose-canescent. — Bot. ^le.x. Bound. 103. — S. E. California on the San Ber- 

 nardino and San Francisco ^Mountains, Lemmon, Greene. First coll. within the Mexican 

 lines, on the Rio Grande in Chihuahua, below San Carlos, Purri/, 



§ 3. Annuals or biennials. 



# Indigenous species, of Southern range: heads conspicuously radiate: akenes seldom glabrous. 

 S. ampuUaceus, Hook. Lightly floccose or araneose-wooDy when young, glabrate and 

 smooth: stem mostly stout, a foot or two high, leafy to near the summit: leaves all undi- 

 vided, repand-dentate or entire (1 to 6 inches long), ovate or oblong; lowest obovate with 

 tapering wing-petioled base : upper mostly clasping with broad base : heads rather numerous 

 in naked loose cvmes: involucre (4 lines higli) calyculate-bracteolate, cylindraceous, becom- 

 ing thickened and conoidal after anthesis : rays 7 to 9, oblong: akenes canes; ent. — Bot. 

 Mao-, t. 3487 ; Torr. & Gray, Fl. ii. 440 ; Grav, PI. Lindh. i. 42. — Sandy prairies, Texas ; 

 first coll. by Dnanmond. 

 ' S. Calif ornicus, DC. Early glabrate if not glabrous, slender, a foot or so high: leaves 

 lanceolate, linear, or the lower oblong, varying from denticulate to pinnatifid, the lobes short 

 and obtuse, all but the lowest auriculate-sessile or clasping at base (one or two inches long) : 

 heads several and loosely paniculate or cymose at the naked summit of the stem : involucre 

 broadlv campanulate, 3 or 4 lines high, nearly naked at base : rays oblong, 3 or 4 lines long : 

 akenes" canescent. — Prodr. vi. 426; Torr. & Gray, 1. c. ; Gray, Bot. Calif, i. 410. ,S'. Coro- 



