192 University of California Publications in Botany. [VOL. 3 



rachis and lobes slenderly filiform. Pala, San Diego Co., Parish. 

 no. 4398; Witch Creek, San Diego Co., 1893, Alderson. 



Var. Orcuttiana (Greene) Hall, comb. nov. C. tenuifolia Or- 

 cuttiana Greene, West Am. Sci. iii. 157 (1887). C. Orcuttiana 

 Parish, Eryth. vi. 92 (1898). Stouter than var. tenui folia: leaves 

 2 or 3-pinnatifid, the ultimate lobes short and obtuse: inflores- 

 cence resinous-glandular : involucre about 7 mm. high ; its bracts 

 linear, acute: marginal corollas regular: pappus-paleae (at least 

 in the disk) nearly equalling the corolla, acute. Along the beach 

 of San Diego Co., passing directly into var. tenuifolia: North 

 Island, Coronado, Chandler, no. 5168; Encinitas, Parish, no. 

 4435. 



Var. lanosa (DC.) Hall, comb. nov. C. lanosa DC., Prodr. v. 

 659 (1836). Plant commonly 1 to 3 dm. high: stems leafy only 

 at the branching base, bearing many long peduncles which are 

 naked and scape-like : herbage whitish with floccose wool which 

 is only tardily deciduous: leaves thickish, simply pinnate with 

 few narrowly linear and mostly short lobes or the upper entire : 

 marginal corollas usually little if at all ampliate, seldom exceed- 

 ing the disk (yet sometimes conspicuously enlarged) : pappus- 

 paleae of disk-flowers 4, sometimes 5, equal or nearly equal, acut- 

 ish. Common in dry or sandy places throughout the Lower and 

 Upper Sonoran zones of Southern California, except in the Des- 

 ert Area ; north to Stockton. The extreme form of this variety, 

 with a somewhat persistent lanate tomentum and large heads 

 terminating simple scape-like peduncles from the much branched 

 very leafy base, is represented by such collections as the fol- 

 lowing : San Jacinto Mt., Hall, nos. 1141, 2165 ; Mohave River 

 district, Parry & Lemmon, no. 200 ; Nascimiento River, Monterey 

 Co., Brewer, no. 541, also May, 1901, Miss Eastwood. It passes, 

 however, by insensible gradations as regards all its characters 

 into the var. tenuifolia, and plants with all the other characters 

 of var. lanosa sometimes have irregular marginal corollas almost 

 as large as in typical C. glabriuscula. The involucral bracts are 

 always narrower than in the species and somewhat acute. 



2. C. carphoclinia Gray, Bot. Mex. Bound. 94 (1859). 

 Annual, 3 dm. or less high, the slender stem cymosely 

 branched: herbage cinereous-pubescent, not at all woolly: leaves 



