ASTERACEAE. 369 



Occasional on dry wooded hills about Los Angeles and eastward. 



2. A. bemardinus Hall, Stems several from a perennial base, 

 erect, leafy throughout; herbage cinereous with a dense short soft 

 pubescence; leaves loosely spreading, linear to linear-lanceolate, 

 3-5 cm. long, 3-5 mm. wide; heads racemose or paniculate; pe- 

 duncles with linear overlapping bracts; involucres 7 mm. high, 

 canescent; bracts closely imbricated, green and obtuse at apex; 

 ray-flowers 30-35, 6-10 mm. broad, deep blue; achenes canescent. 



Moist meadows about San Bernardino, Parish; Cienaga, Braun- 

 ton, Davidson; Pomona, Davy, according to Hall. 



3. A. fremonti parishii Gray. Stems slender, seldom over 3 dm. 

 high, sometimes simple, and with a solitary terminal flower, com- 

 monly with a short cymose panicle; herbage sparsely pubescent or 

 more distinctly so in the inflorescence; basal leaves oblanceolate to 

 obovate, upper leaves linear to narrowly oblong, sessile 4-8 cm. 

 long; involucre 5-8 mm. high, bracts ciliate; rays numerous, about 

 6 mm. long, blue to violet. 



Mountain meadows and streams mostly above 5000 feet, San 

 Bernardino Mountains, also reported from the San Gabriel Moun- 

 tains (Davidson). 



4. A. hesperius Gray. Stems paniculately branched, 6-10 dm. 

 high, varying from nearly glabrous to scabrous-pubescent; leaves 

 lanceolate, entire or the larger with a few denticulations, 5-10 cm. 

 long, 6-15 mm. wide; heads crowded, 8-10 mm. high; involucre of 

 narrowly linear or more attenuate acute or gradually acuminate erect 

 bracts, either unequal and imbricated or with some loose and slender 

 herbaceous exterior ones which equal the inner; rays either white or 

 violet, 6-8 mm. long. 



Cienega, near Los Angeles, and in low ground about San Ber- 

 nardino. 



5. A. greatae Parish. Stems erect or assurgent, 4-17 dm. 

 high, glabrous or above sparsely hirtellous; leaves thin, ovate, 

 oblong-lanceolate or lanceolate, 6-15 cm. long, the scabrid mar- 

 gins few-toothed or entire, the base clasping; the uppermost usually 

 reduced to linear or linear-lanceolate bracts; heads 5 mm. high, in 

 an ample panicle; involucral bracts loosely imbricated in a few 

 series, lanceolate, green, minutely ciliate; rays 30-40, light purple, 

 narrow, acute, 5-10 mm. long; achenes hirsute. 



Occasional in the canyons of the San Gabriel Mountains, mostly 

 in the upper portions of the chaparral belt. 



6. A. exilis Ell. Stem erect, 6-12 dm. high, rather stout below, 

 paniculately branched above into numerous slender branches; 

 lower leaves lanceolate, the upper linear, mostly entire; heads small, 

 numerous, about 6 mm. high, narrow; bracts of the involucre linear- 

 subulate; rays 15-40, bluish-purple or pinkish. 



Frequent in low subsaline places, especially along the coast. 

 August-October. 



17. ERIGERON L. 



Branching or scapose herbs, with alternate or basal 

 leaves and corymbose, paniculate or solitary heads of 



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