|Standard Cyclopedia of Horticulture|
Epiphyllum (on a leaf; refers to the leaf-like branches on which the flower grows). Cactaceae. Spineless upright branched flat-stemmed cacti with very large and showy flowers, some of them popular as house- plants.
Branches flat, 2-edged, crenate or serrate on the margins, spineless: fls. usually large, mostly nocturnal; petals white, red, or yellow; stamens elongated, numerous: fr. oblong in outline, bearing a few bracts, red, juicy; seeds numerous, black. In the Cyclopedia of American Horticulture, the name Phyllocactus was used for this genus, but this is a much later name and hence it is given up. The epiphyllums of the first Cyclopedia will be found under Zygocactus. For cult., see Succulents.
Several hundred hybrids are in the trade, the most common ones being with E. crenatum, E. Ackermannii and E. phyllanthoides. Fig. 1401. Crosses are often made with the various Cereus allies, such as Heliocereus speciosus, and with some species of Echinopsis.
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- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963