A. Remnant of chaparral (Adenostoma consociation on the floor of the Sacramento 



Valley, in Colusa County, south of Arbuckle; Coast Range in the distance. 



B. Adenostoma consociation on cast slope of north Coast Ranges: clearing and 



secondary grassland with Finns sabiniana and Quercus douglasii growing with 

 the latter; Pinus ponderosa on distant ridges. Beegum, Tehama County. 



C. R< mnant of original chaparral cover on the slope of an isolated mountain; sec- 



ondary grassland, with abundant cattle trails; live oaks in ravines. Mount 

 Diablo, Contra Costa County- 



