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5. Chrysopsis Nutt. Gonpen Aster. 
Superflua. Aiqualis. Head o-flowered; ray- 
flowers ligulate. Akenes compressed; pappus 
2-seriate; outer row short paleaceous scales, 
inner row long scabrous bristles.—2{. Flowers 
yellow. 
1. OC. sesstirtora Nutt. Capitula radiate. 
Tamalpais. Summer. 
2. C. Onzcana Gray. Capitula not rad- 
iate.—Livermore. Autumn. 
6. Aplopappus Cass. 
Superfiua. Mqualis. Head o-flowered. 
Ray-flowers ligulate. Bristles of the pappus 
o. Flowers yellow. 
1. A. LingaRirotius DC. Rays more than 
9.—h. Contra Costa mountains. Summer. 
2. <A. ERICOIDES Hook. Ray-flowers less 
than 10.— }. Sand hills. San Francisco. Sum- 
mer. 
7. Bigelovia DO. 
Afqualis. Superfiua by a single ray-flower. 
Head few-flowered. Receptacle narrow. Pap- 
pus l-seriate; bristles «. Flowers yellow. 
1. B. arporescens Gray. Scales of the 
involucre irregularly imbricate and not in dis- 
tinct ranks.— . Tamalpais. Summer. 
