(112) 



4. S DOUGLASII DC. Ray-flowers elon- 

 gated; leaves linear or pinnately parted into 

 linear segments. 2. Contra Costa hills. 

 Summer. 



5. S. VULGARIS L. Rays 0. 0. Waste 

 grounds. All the year round. Weed intro- 

 duced from Europe. 



Tribe VIII. EUPATORIACE^;. 

 Style branches club-shaped. ^Equalis. 



59. Blllbostylis DC. (Brickellia Ell.) 



Scales of involucre imbricate, 2-3-seriate. 

 Receptacle flat, naked. Margin of the tubular 

 corolla minutely 5-dentate. Style bulbous at 

 base. Akenes 10-striate; pappus oo-seriate, 

 bristly, scabrous. Leaves opposite. 



1. B. CALIFORNIA Gray. Suffrutescent; 

 flowers pale. 2. Niles Station. Summer. 



Tribe IX. CYNAROIDE,E. 

 Style branches concreted. Corolla deeply 

 5-cleft. Receptacle bristly. 



60. Cnicus L- THISTLK. 



.ZEqualis. Scales of the involucre co-seriate, 

 imbricate, ending in a spine. Pappus decidu- 

 ous, co-seriate; bristles plumose, connected at 

 their base into a ring. Filaments syngenetic. 

 00. 



