(104) 



tacle muricate -roughened; leaves 3 -nerved, 

 ciliate. 0. Marin County. Spring. 



2. B. CHEYSOSTOMA Fisch & Mey. Pappus 

 0; akenes not quadrangular; receptacle muri- 

 cate-roughened; leaves linear, not ciliate. 0. 

 Common. Spring. 



3. B. GBACILIS Gray. Akenes quadrangu- 

 lar; pappus uniform, aristate; receptacle muri- 

 cate -roughened; plant hirsutely pubescent. 

 Common. Spring. 



4. B. CABNOSA Greene. Pappus uniform, 

 aristate; akenes quadrangular; receptacle mu- 

 ricate-roughened; plant glabrous. 0. Salt 

 marshes. Spring. 



5. B. FBEMONTII Gray. Pappus 4 awns, 

 alternating with narrow, small palese ; recepta- 

 tacle muricate-roughened. Besides the entire 

 leaves, some palmate ones. . Contra Costa. 

 Spring. 



6. B. ULIGINOSA Gray. Pappus 2-3 awns, 

 alternating with broad fimbriate palese (some- 

 times pappus altogether 0); receptacle muri- 

 cate-roughened. Besides the entire leaves, 

 some pinnately or bipinnately lobed ones. . 

 Common. Spring. 



41. Eriophyllum Lag (Bahia DC.) 

 Superflua. Ray-flowers ovate, exserted. 

 Scales of the involucre lanceolate, united at 

 the base ; receptacle naked, alveolate. Pappus 



