(83) 



2. P. EXILIS Gray. Stem erect; peduncles 

 villous; ray -flowers 0; disc-flowers purple. 

 Marin County. 



3. P. ALSINOIDES Greene. Stem diffuse, 

 much branched; capitula almost sessile in the 

 axillae of branches; ray-flowers 0; disc-flowers 

 purple. Marin County. 



b. Parts of the pappus GO. 

 4, Lessingia Cham. 



.ZEqualis. Superflua. Ray-flowers with pal- 

 mate limb. Receptacle flat, naked. Akenes 

 compressed, silky-villous; pappus 1-seriate; 

 bristles oo, scabrous, rigid. 



1. L. GERMANOBUM Cham. Limb of ray- 

 flowers unequally lobed; stems spreading on 

 the ground; lower leaves spathulate, pinnati- 

 fid; flowers yellow. Sandhills. San Francisco. 

 Summer. 



2. L. KAMULOSA Gray. Limb of the ray- 

 flowers unequally lobed; stem erect, diffusely 

 branched; leaves not pinnatifid; flowers pur- 

 ple. Marin County. Summer. 



3. L. LEPTOCLADA Gray. Limb of ray-flow- 

 ers equally lobed; stem erect; branches fili- 

 form, terminated by the capitula; flowers pur- 

 ple, white. Nicasio. Summer. 



