( 86 ) 
10. Aster (Nees.) 
Superflua. Head o-flowered. Ray-flowers 
1-seriate, ligulate. Scales of involucre imbri- 
cate. Style appendages triangular-lanceolate 
to subulate. Pappus of copious capillary, scab- 
rous bristles. — 2. Ray-flowers rose-color, 
white, blue. 
1. A. RADULINUS Gray. Pappus rigid; some 
of the bristles thickened toward the top; rays 
white.—2. Berkeley. Autumn. 
2. A. CHAMISSONIS Gray. Pappus soft; stem 
glabrous, erect and branching, leafy; involucre 
imbricate, its scales with green tips; ray-flow- 
ers violet.—2(. San Francisco at the ceme- 
tery. Autumn. 
3. A. Divaricatus Nutt. Pappus soft; stem 
_ glabrous, diffusely branched; branches slender; 
involucre imbricate, its scales with scarious 
margins.—©. Salt marshes, San Francisco. 
Autumn. 
11. ErigeronL. Frea-zang. 
Superflua. Necessaria. Head oo-seriate, lig- 
ulate; scales of the involucre imbricate, linear. 
Pappus scanty of scabrous, capillary bristles. 
1. KE. STENoOPHYLLUS Nutt. Stem leafy; leaves 
linear, scabrous, deep green; rays purple.—2f. 
Livermore. Autumn. 
