172 W. S. Cooper 



Monterey County, with an outlying station at Casmalia, Santa 

 Barbara County. Castilleja is an important genus in western 

 North America, with 16 species in California (Jepson, 1925). It 

 is represented also in eastern America, northern Asia, and South 

 America. Another member of the genus, C. foliolosa H. and A., 

 though not strictly coastal, is a frequent member of the dune 

 shrub community. 



Corethrogyne filaginifolia (H. and A.) Nutt. (fig. 9^) is a 

 common and typical member of the dune shrub community. 

 Along the coast it ranges from Bandon, Oregon, southward to 

 the Mexican boundary. It occurs inland also, in the Coast 

 Ranges south of San Francisco Bay, the lower and middle alti- 

 tudes of the Sierras from Amador County southward, and the 

 valleys of southern California. 



The genus Corethrogyne is considered by Hall (1907) to be 

 monotypic. The species is exceedingly variable. Hall recognizes 

 eight varieties; twenty-five or more so-called species have been 

 segregated by various authors. Certain of these occupy consistent 

 geographic areas and others do not. The genus belongs to a group 

 within the tribe Astereae, which includes such characteristic 

 western American genera as Aster and Erigeron. 



Artemisia campestris L. subsp. pycnocephala (Less.) Hall 

 (fig. 9^) is a frequent member of the dune shrub community 

 occurring also on sand not sufficiently stabilized for invasion by 

 the shrubs. It is stricdy coastal, ranging from Coos Bay, Oregon, 

 southward to Point Sur, Monterey County, California. The large 

 genus Artemisia is widely distributed over the northern hemis- 

 phere, and the species that have been described from North 

 America are very numerous. In the recent treatment by Hall 

 and Clements (1923), many of these are reduced to units of lesser 

 rank. A. campestris is made up of a complex of forms, quite di- 



