SHREVE Plate 5 
A. Desert Slopes near mouth of Pima Cafion. In foreground, from the left are Parkinsonia microphylla, 
Simmondsia californica, Carnegiea gigantea, Opuntia toumeyt, and Lycium berlandiert. 
B. Rocky Desert Slopes in same vicinity as A. Against the sky are Fouquicria splendens, Prosopis 
velutina, and Momisic. pallida; in foreground Spheralcea pedata, Lippia wrightii, and Opuntia 
engelmanni. 
