SHREVE 



Plate 3 



A. Typical L(»\v I^ajada, with pure .stand of Cofillra trifhnlatn and sunmiiT carijct of Boiilvloua aristidoides. 



B. Looking southwest from Upper Bajada near mouth of Soldiii- ( anon. In the arro\ u in iMrc^im 



Carnegiea gigantea, Parkinsonia microphylla, Acacia greggii, and Fouquicria ■•iidcndcns. Di.stant 

 hills are relict toes of ancient bajadas. 



