[Chap. LIU THE VEGETATION OF NORTH AMERICA 



767 



Fig. 392. Plains grassland near Akron, Colorado, dominated by grama and liuffali 

 grasses. See also Fig. 332. Photo by H. L. Shantz. 



Fig. 393. An excellent stand of blue grama grass in New Mexico. Photo from U. S. 



Soil Conservation Service. 



