(85) 



8, SolidagO k. GOLDEN ROD. 



Superflua. Head co-flowered. Kay-flowers 

 ligulate, few, distant from each other. Akenes 

 terete, oo-costate; pappus of GO, capillary 

 bristles. 2. Autumn. Suffrutescent plants, 

 with long rod-like branches. Flowers yellow. 



1. S. OCCIDENTALIS Nutt. Stem branching. 

 It- Moist places. Summer. 



2. S. CALIFORNICA. Nutt. Stem single ; the 

 whole plant pubescent. If. Moist sand. Sum- 

 mer. 



3. S. SEMPEEVIEENS L. Stem simple; the 

 plant completely glabrous. U- Salt marshes 

 near San Francisco. Autumn. 



All Solidago species seem to be possessed of 

 diuretic powers. S. Virgaurea, a European 

 species, formerly officinal, is still in use as a 

 domestic remedy. 



9, Corethrogyne DC. 



Frustranea. Head co-flowered; ray -flowers 

 co, 1-seriate; scales of the involucre imbricate; 

 style appendages of disc-flowers with tuft-like 

 bristles; pappus of simple, unequal rigid bris- 

 tles. 2. Ray-flowers blue, purple; habit of 

 aster. 



1. C. OBOVATA Benth. Contra Costa range. 

 Marin County. Summer. 



