416 Heliantheae 



16-20, 2.5 cm. long or more, golden-yellow; achenes obovate with 

 very shallow notch and no pappus, the margins very long villous. 

 Very common in the lower portions of the chaparral belt of all the moun- 

 tains; also on the low hills about Los Angeles and along the coast. Rang- 

 ing from Monterey to San Diego. In the San Bernardino and Riverside Valleys 

 and eastward it is replaced by E.farinosa Gray, which has the leaves cov- 

 ered with a silvery tomentum. 



31. VEBBESINA L. 



Perennial or annual, pubescent or scabrous herbs with 

 alternate or opposite leaves, often decurrent, and corym- 

 bose or solitary heads of both ray- and disk-flowers, or 

 the rays sometimes wanting. Involucral bracts imbri- 

 cated in few series. Receptacle convex or conic, chaffy, 

 the chaff embracing the disk-flowers. Ray-flowers pistil- 

 late or sterile. Disk-flowers perfect, mostly fertile. 

 Achenes flattened or those of the rays 3-sided, their 

 margins winged or wingless. Pappus of 1-3, usually 2, 

 subulate awns, sometimes with 2-3 intermediate scales. 



1. V. encelioides (Cav.) Gray. Annual ; stems densely puberu- 

 lent, much branched or rarely simple, 3-6 dm. high; leaves 

 deltoid-ovate or deltoid-lanceolate, 5-10 cm. long, coarsely den- 

 tate, green and minutely pubescent above, pale and densely canes- 

 cent beneath, all alternate or the lowest opposite, narrowed at 

 the base to a margined petiole, these often with dilated append- 

 ages at the base, heads several or many, 2.5-5 cm. broad; involu- 

 cral bracts lanceolate, canescent; rays 12-15, golden-yellow, 

 3-toothed ; achenes of the disk-flowers obovate, winged; pappus 

 of 2 subulate awns, those of the rays rugose, thickened, often 

 wingless. 



Occasional in moist alluvial soils along our valley streams. Los Angeles; 

 San Fernando Valley. April-June. 



32. LEPTOSYNE DC. 



Glabrous annual or perennial herbs or rarely shrubby, 

 with dissected leaves, and usually long scapiform erect 

 peduncles, bearing rather large heads of yellow flowers. 

 Involucral bracts in 2 series, the outer of narrow foliace- 



