(95 ) 
3. W. aNGustiFoLia Nutt. Pappus aristate. 
Marin County. Spring. 
27%. Helianthella Torr. & Gray. 
Frustranea. Head -flowered. Receptacle 
flat; paleaceous. Akenes flattened; pappus 
represented by 2, marginal, ariste, alternating 
with 2, caducous palee.—2¢. Flowers yellow. 
1. H. Catirornica Gray.—Napa. Spring. 
28. Helianthus L, Svusviower. 
Frustranea. Head o-flowered. Receptacle 
flat, paleaceous. Akenes slightly compressed; 
quadrangular. Pappus represented by 2, mar- 
ginal caducous; pales with minute, intermedi- 
ate ones. Ray-flowers yellow. 
1. H. annuus L. Receptacle flat; palese of 
receptacle 3-cleft; disc brown; lower leaves 
cordate, serrate—@© Common. Summer. 
2. H. scaperrimus Benth. Receptacle flat; 
palez of receptacle entire, aristate, the awn 
as long as the disc-flowers; disc brown. ©. 
San Rafael. Summer. 
3. H. uxmis Gray. Receptacle flat; palex 
of receptacle entire, aristate, the awn longer 
than the dise-flowers; disc brown.—@. Lake 
county. Summer. 
