The stems of the Mojave Hedgehog Cactus are as long as seven inches and of a pale green. The structure of the stems furnishes a dozen or so ribs, and this arrangement provides the necessary strength for support. The plant is covered with a whitish system of spines, slender and bent and in age becoming gray. The spines are radial; they are not long but are dangerous to touch. The flowers of this little plant are scarlet and remain open for several days; they are rather small, not more than an inch and a half across. The petals are mostly thick and broad and have obtuse tips that are sometimes notched, while the ovary has white felted areolas covered with short needlelike spines for protection. The fruit is elliptical, about the size of an English walnut, and ripens in May and June. We have found that the plants grow in loose clumps, forming into mounds among the shifting sands, a conspicuous feature on the desert and foothills with their flaming bloom, hence called also the Desert-Afire. How to grow These plants will grow outdoors where temperatures descend to twenty or twenty-five degrees below freezing; in colder climates they may be grown in hot, dry conservatories or rock gardens. Like others of this group the plants may be transplanted at almost any season, and if planted in early spring they blossom the same year. They grow in sandy or loamy soil with enough water to keep the soil moist during the growing season; they endure prolonged drought in their native habitats and hence should not be watered excessively in cultivation. Golden Spined Hedgehog Cactus (_Echinocereus chrysocentrus_—_Echinocereus Engelmannii_, variety _chrysocentrus_) (Named “chrysocentrus” from its beautiful golden or light yellow translucent spines) How to identify and how it grows