its easy growth. E. potygona for handsome ribbed stems; or E. coerulescem for the beautiful blue-green color of its new branches. But the finest of them all is E. grandicornis, whose three-foot stems branching from the base are pinched ofl into short three-angled joints, each studded with very long paired spines that give it the popular name Cow's Horns.
Just as small plants of the giant Torch and Candelabra Cacti arc useful and interesting in succulent collections, so young plants of the large treelike euphorbias may serve as an ideai background for the smaller types. Among them we ean find such wonderfully interesting plants as £. abyssinica, whose deeply ribbed branches are curiously veined and whorted; £. canariensis, a very popular and elegant species with slender. erect branches; or the Elk s Horn Euphorbia. E. lactea var. cristata, whose crested, knobby branches are a worthy rival of the Peruvian Rock Cactus, Cereus peruvianus var. monstrosus, and as much sought after. But none of these has quite the charm oi E. hermentiana, the Milk Tree, *hose erect, angular, dark green branches are beautifully mottled with white and studded with red-brown spines and surprisingly persistent tiny green leaves. It grows and branches very freely making a fine specimen that is a "must" for every collection.
The euphorbias are not difficult to grow bui. like most succulents, they must have ample sunshine and air protection from frost, and careful watering. Winter is the usual growing season for most species in mild climates, but in colder areas the plants must be kept dormant during the winter by keeping them cool and relatively dry, as moisture and cold combined quickly induce rot. As warm weather approaches, the plants may be watered more freely to stimulate new growth, but once this is completed they should be rested, with
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