Plate XLIII. Fig. i.—Salt-flat vegetation bordering Great Salt Lake with a grease- 
wood-shadscale ridge in the foreground, a pure stand of Salicornia 
utahensis at the right and hummocks covered with Allenrolfea 
occidentalis in the background. 
Fig. 2 .—Sagebrush association (the darker areas) and islands of 
Kochia vegetation (the lighter areas) in the upper part of Tooele 
Valley. The sagebrush is encroaching upon the Kochia (at left). 
