344 PHANEROGAMOUS PLANTS. 



11. Erigeron filifolium, Nutt. 



Hab. Spipen Eiver, Wall a- Walla, and north fork of the Columbia. — 

 In dried specimens the rays appear to have been yellow, but they are 

 said to be white, or sometimes tinged with purple or pink. 



8. SERICOCARPUS, Nees. 



1. Sericocarpus rigidus, Lindl. 



Hab. Washington Territory, between Satchap River and Gray's 

 Harbor. 



9. TOWNSENDIA, Hook. 



1. TOWNSENDIA STRIGOSA, Nutt. 



Hab. Banks of the Walla-Walla, and of the north branch of the 

 Columbia. 



10. GUTIERREZIA, Lagasca. 

 1. Gutierrezia EuTHAMiiE, Torr. & Gray. 



Hab. Bay of San Francisco, California. — In two forms, one answer- 

 ing to G. JEuthamice, the other to G. Calif arnica; but the two are 

 probably only forms of one species, although the scattered heads of 

 the latter are larger. 



11. SOLIDAGO, Linn. 



1. SOLIDAGO CONFERTIFLORA, DC. 



Hab. Nisqually, Washington Territory. — A form with the panicle 

 comparatively lax and slender. 



