44 University of California Publications in Botany. IT OL - 3 



cept toward the base) with small ascending or suberect sessile 

 leaves; these oblong to linear-spatulate, shortly acute or obtuse 

 and mucronate, white (especially on the back) with a soft ap- 

 pressed-silky tomentum : no outer squamellate pappus but some 

 of the outer bristles occasionally short. Upper Sonoran Zone, 

 apparently rare but perhaps overlooked by collectors, mistaking 

 it for the common var. echioides: vicinity of San Bernardino, 

 300 to 450 m. (1000 to 1500 ft.) alt., Oct. 15, 1895, Parish, no. 

 3815; San Bernardino Valley, Sept., 1892, Parish; near Clare- 

 mont, Los Angeles Co., Baker, no. 3669. 



Var. sessiliflora (Nutt.) Gray, Syn. Fl. i. pt 2, 123 (1884). 

 C. sessiliflora Nutt., Trans. Am. Philos. Soc. ser. 2, vii. 317 

 (1841). C. California Elmer, Bot. Gaz. xxxix. 48 (1905). 

 Herbage sparsely hirsute and greenish to villous-canescent : 

 leaves oblong or spatulate: heads mostly large and solitary or 2 

 or 3 together at the ends of cymose branchlets, closely subtended 

 by 1 to several foliose bracts : outer pappus present, squamellate, 

 often concealed by the densely villous hairs clothing the achene. 

 Mendocino Co. to San Diego and Arizona, ace. to Gray; Santa 

 Monica, Davidson, ace. to Abrams; San Bernardino, Parish, no. 

 570; Gaviota, Santa Barbara Co., Elmer, no. 4148 (type of C. 

 California, outer pappus of disk-flowers present, consisting of 

 many linear toothed paleas about .7 mm. long.) 



2. C. Wrightii Gray, Syn. Fl. i. pt 2, 445 (1886). 



Herbage pubescent with fine soft hairs : leaves probably ovate 

 to lanceolate and 2 to 5 cm. long: involucral bracts all partly 

 herbaceous and the inner ones nearly equalling the flowers : heads 

 discoid: corolla-limb slightly hairy outside: style-appendages 

 subulate-linear, several times longer than the stigmatic portion, 

 which is not much longer than broad: outer pappus obscure; 

 inner pappus extremely copious. 



San Bernardino Mts., at 3,500 m. alt. (11,400 ft., and there- 

 fore on Mt. Grayback, since no other is so high), Jul., 1882, 

 Wright, ace. to Gray; apparently not since collected. In the 

 absence of specimens the description is taken from the original 

 diagnosis. 



