(83 ) 
2. P.Exitis Gray. Stem erect; peduncles 
villous; ray-flowers 0; disc-flowers purple. 
Marin County. — 
3. P. ausinoipes Greene. Stem diffuse, 
much branched; capitula almost sessile in the 
axilla of branches; ray-flowers 0; disc-flowers 
purple.—Marin County. 
b. Parts of the pappus oo. 
4. Lessingia Cham. 
Aqualis. Superflua. Ray-flowers with pal- 
mate limb. Receptacle flat, naked. Akenes 
compressed, silky-villous; pappus 1-seriate; 
bristles o, 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. ramutosa 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. 
