(104) 



tacle muricate -roughened; leaves 3 -nerved, 

 ciliate. — 0. Marin County. Spring. 



2. B. CHRYSOSTOMA Fiscli & Mey. Pappus 

 0; akenes not quadrangular; receptacle muri- 

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

 Common. Spring. 



3. B. GRACILIS Gray. Akenes quadrangu- 

 lar; pappus uniform, aristate; receptacle muri- 

 cate -roughened; plant hirsutely pubescent. 

 Common. Spring. 



4. B. CARNOSA Greene. Pappus uniform, 

 aristate; akenes quadrangular; receptacle mu- 

 ricate-roughened; plant glabrous. — 0. Salt 

 marshes. Spring. 



5. B. Fremontii Gray. Pappus 4 awns, 

 alternating with narrow, small paleje; recepta- 

 tacle muricate-roughened. Besides the entire 

 leaves, some palmate ones. — 0. Contra Costa. 

 Spring. 



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

 alternating with broad fimbriate paleae (some- 

 times pappus altogether 0); receptacle muri- 

 cate-roughened. Besides the entire leaves, 

 some pinnately or bipinnately lobed ones. — 0. 

 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 



