( 112 ) 



4. S. Dou^LASii DC. Eay-flowers elon- 

 gated; leaves linear or pinnately parted into 

 linear segments. — U- Contra Costa hills. 

 Summer. 



5. S. VULGARIS L. Raj^s 0. — 0. Waste 

 grounds. All the year rouud. Weed intro- 

 duced from Europe. 



Tribe VIII. EuPATORiACEiE. 

 Style branches club-shaped, ^qualis. 



59. Bulbostylis DG. {BrkMlia Ell ) 



Scales of involucre imbricate, 2-3-seriate. 

 E-eceptacle flat, naked. Margin of the tubular 

 corolla minutely 5-dentate. Style bulbous at 

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

 bristly, scabrous. Leaves opposite. 



1. B. Califoknica Gray. Suffrutescent; 

 flowers pale. — U- Niles Station. Summer. 



Tribe IX. CvNAROiDEiE. 

 Style branches concreted. Corolla deeply 

 5-cleft. Beceptacle bristly. 



60. Cnicus L. Thistle. 



Squalls. 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 sjnigeuetic. 

 O0. 



