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Cotyledon (From kotyle a cavity)

(from kotyle, a cavity; in allusion to the cup-like leaves of some of the species). Navelwort. ORD. Crassulaceoe. Under this one genus are now included Echeveria, Pachyphytum, Pistorinia, and Umbilicus. To render the matter clearer, the typical characters of these four sections are given below. The differences are merely botanical; and the culture of the groups is identical. Greenhouse evergreens, except where otherwise stated.