(83) 



2. P. EXiLis Gray. Stem erect; peduncles 

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

 Marin County. 



3. P. ALSixoiDES Greene. Stem ditfuse, 

 much branched; capitula almost sessile in the 

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

 purple. — Marin County. 



b. Parts of the pappus co. 



4. Lessingia Cham. 



^E(pialis. Superflua. Kay-flowers with pal- 

 mate limb. Receptacle flat, naked. Akenes 

 compressed, silky-villous; pappus 1-seriate; 

 bristles oo, scabrous, rigid. — 



1. L. Germanorum 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, difl'usely 

 branched; leaves not pinnatifld; 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. 



