National Geographic : 1925 Sep
CANYONS AND) CACTI OF TIlE AMERICAN SOUTHWEST A DESERT BEAUTY NEAR CARLSBAD CAVERN This little prickly pear (Opuntia pottsii) consists chiefly of spines and gorgeous blooms. This specimen was found on the gypsum flat where desert conditions are at their worst. The joints are small and " lean," as if the plant were starved, and are covered with needlelike spines, which protect it effectively from the browsers. But when it blooms the desert is glorified. © Natural Color Photographs by Jacob Gayer A RELATIVE OF THE RAINBOW CACTUS This cactus (Echinocereus dasyacanthus) has many ribbed cylinders, about a foot high, which grow singly or in loose clusters, and are densely clothed with bunches of short spines.