SHREVE 



Plate 36 



A. SaiiiH Catalinas viewed from north, showing grassy plains at elevation of 4,l.'()U feet in the vi 

 Oracle. At right Prosopis velutina, at left Yucca alata. 



B. At north l.aseof 



ilinas looking toward San Pedro River, at 4,500 feet. At i i 

 and Nolina microcarpa, at left Yucca alata. 



% C. StaU CoOtgl 



