C/umactis. , •( );^i l>()SI T.E. ^^go 



-.- Pappmofi or .ometime.'^ 5 nho„t rqnnl mo,ffy ohhuuj-laur.olafc ncutisk scales, or 

 in the marginal Jfowrrs irrf,j„lar and unequal as well as shorter. 



1. C. lanosa, DC. Whitisli with floccosc l)ut (looidnous wool, the oldor leuvps 

 becoming glabrous, a span or more high, brancherl and leafy only at the base ■ tlie 

 simple naked peduncles therefore long and scape-like, l)earing solitary hea.ls : leaves 

 with few narrow y linear divisions, or the uppermost entire: enlarged marginal 

 corollas with short ovate lobes, hardly surpassing those of the disk. 



3 to'Ii1m.h"'i,,n'''" ^^""*'"'"^ *" '"'"'' ''''"' ^^'"«"- """•'•'' '""■'•b- l"'l'' ••" i>"li l'i«li, "n |"Mlun.-lrs 



2. C. glabriuSCUla, DC. Lightly floccose-woolly, at length somewhat glabrous 

 branching throughout, a foot or so high : leaves with several rather short thickish 

 obtuse linear divisions : heads on stout rather long pruluncles : scales of the involu- 

 cre rather broadly linear and olituse : marginal corollas with conspicuously enlarged 

 and radiating palmate limb, the lobes oval or oblong. - Var. me),acephah., Gra/in 

 lacit. R. Rep IV 104, is merely a stouter form, with mostly larger heads and 

 flowers ; so is G. demidata, Nutt. PI. Gamb. 177. 



Opoi, gronn.^^ from the Unpcr Sacramento, and along the loot-I.illH of tl.e Sierra to Los 

 Angeles. I athor stoat. Heads from half to three fourths of an inch high, inclined ol^ ™ 

 bose, on peduncles from 2 to 7 inches long. " '"''""''' ^ "^ ^^i^y'"- 



3. C. tenuifolia, Xutt. Slightly and .lelicately woolly when young, becomin^r 

 nearly glabrous, a span to a foot or more high, leafy and branching to the top 

 leaves once or somewhat twice pinnately parted into very narrow or filiform lobes • 

 heads somewhat corymbose, on short peduncles : scales of the hemispherical involucre 

 narrowly linear and very numerous : enlarged marginal corollas with short some- 

 what irregular lobes and not surpassing those of the disk. — C. iilifolia, Gray, PI 

 Fendl, 98. . .' » j> • 



Vicinity of San Oiego. Hmds barely 4 or ^ jiues high, hn.ad in i.ioportiMn, on i.o.hmclos of 

 sne'il^s "VheVJ/r^ 1 " -k".''? ''^^''^.^''-''t- Akenes nnK-l> si.orter than in L {.receding 

 species lie C. fihfoha, described from a single specimen lielonging to the Dublin Univei-sitv 

 herbarium, is probably a form of this rather than of the preceding spedes. " 



■f- -J- Pappiis, at least of the disk-floxvers, double, of 4 ordinary and of \ to ^ ver,, 



much smaller alternating scales. 



4 C. hoterocarpha, Gray. A span to nearly a foot Iiigh, lightly and loosely 



woolly when young, simple or branching above, leafy : leaves pinnately parted into 



4 to J narrowly linear unequal divisions : scales of the involucre broadly linear • 



t" ,f on'"'''«'"''^ ^^'■""'''•^ ''^'^^' "^^^"f? lobes mostly surpassing the disk. — PI 

 J^endl. 98. 



Var. tanacetifolia, Gray. Dwarf, with l)ipinnate]y parted leaves mostly tufted 

 at the base; their lobes numerous, very short, crowded, often oblong or oval : root 

 biennial. — 6. tanacetifolia, Gray, Proc. Am. Acad. vi. 545. 



On the Sacramento and its tributaries, Ukiah, &c., Fremont, Ilnrtirrq, Bnlmuhr The vari- 

 ety Lake Co. near Hear Lake, Botandrr. Heads about half an inch" high ; the i,ednncle an 

 inch or two long. I anpus of tiie outermost flowers sometimes as in the inner, or irreKular an.l 

 .sliorter, sonietinios much shorter and the small outer scales wanting. 



» * Corollas white or flesh-colored, 



+- The marginal ones obviously enlarged and somewhat obliquely 5-lobed, but not 

 surpassing the disk : pappus of on,ly 4 or sometimes 5 7t snail y equal scales : scales 

 of the involucre numerous and narrow-linear. Herbage with minute woolliness 

 which early disappears, then glabrous, minutely granular or glandular above. 

 fi. C. brachjrpappa, Gray. Corymbosely branched, a foot high : loaves twi(!o 



pinnately parted into short-linear and rather rigid divaricate lobes : peduncles short : 



scales of the pappus truncate and almost square or slightly cuneate, one fourth v->f 



the length of the akene. — Proc. Am. Acad. viii. 30O. 



