ASTERACEAE. 365 



6 mm. high; bracts tomentose-cihate, all erect, the outer successively 

 shorter, becoming greenish and passing into the very short leaves; 

 rays about 3-5, short; achenes glabrous. {Ericameria microphylla 

 Nutt.) 



Frequent on bluffs and sand-dunes along the seashore. 



4. E. palmeri (Gray) Hall. Paniculately much branched, about 

 1 m. high or less; leaves all filiform terete, those of the branches 

 about 2 cm. long; lower bracts of the involucre greenish-tipped; 

 rays 3-4; achenes pubescent. (Aplopappus palmeri Gray.) ^ 



Occasional in the foothills about Los Angeles and San Diego. 



5. E. pinifolia (Gray) Hall. Rather stout, with rigid, erect 

 branches, 15 dm. high or less; stem-leaves filiform, 2.5 cm. Jong or 

 more, mucronate; heads rather few in a contracted panicle, or 

 scattered, campanulate; proper bracts of the involucre broadly 

 lanceolate and with a greenish midrib, the loose outer ones subulate, 

 shorter than the inner and passing into the small leaves of the 

 flowering branchlets; rays usually 6-10; achenes glabrous or nearly 

 so. {Aplopappus pinifolius Gray.) 



Frequent in the foothills of the San Gabriel Mountains in the 

 lower altitudes of the chaparral belt. August-November. 



11. CHRYSOTHAMNUS Nutt. 



Shrubby or suffrutescent plants with narrow or terete 

 entire leaves, and white- tomentose or glabrous herbage 

 often viscid or resinous. Inflorescence paniculate, cy- 

 mose or rarely racemose. Involucre narrow its bracts 

 well imbricated usually in vertical ranks, chartaceous, 

 with or without herbaceous tips. Ray-flowers none; 

 disk-fiowers yellow, 5-30. Style-branches subulate or 

 filiform, long-exserted. Achenes narrow, terete or slight- 

 ly angled, pubescent; pappus copious, soft, dull white or 

 sometimes reddish. 



Branches not tomentose, smooth and white. 



Leaves not twisted. 1. C. sfenophylus. 



Leaves twisted. 2. C. tortifolitis. 



Branches more or less tomentose. 3. C. occidentalis. 



1. C. stenophyllus (Gray) Greene. Shrub with erect branches, 

 3-10 dm. high; herbage without tomentum, glabrous or slightly 

 scabrous; leaves 2-4 cm. long, 2 mm. wide, acute, mostly 3-nerved, 

 the margins ciliate; flowers cymose; involucres 5-8 mm. high, the 

 bracts 3-4 in each row. 



This species is not definitely known within our range, but it 

 has been reported from Acton {Parish), and is in the Bear Valley 

 region of the San Bernardino Mountains. 



2. C. tortifolius (Gray) Greene. Erect shrub 3-10 dm. high, 

 the branches smooth white; herbage destitute of tomentum; leaves 



