. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. 482 DIDYMOSPEEMA DIEFPENBACHIA and has lately been referred to Wallichia, which see. While young, at least, the Didymospermas enjoy a "warm house and moist atmosphere with shading from full sun- shine, though we are told that one species, D. oUongi- folia (or Wallichia), is frequently found in Sikkim at an


. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. 482 DIDYMOSPEEMA DIEFPENBACHIA and has lately been referred to Wallichia, which see. While young, at least, the Didymospermas enjoy a "warm house and moist atmosphere with shading from full sun- shine, though we are told that one species, D. oUongi- folia (or Wallichia), is frequently found in Sikkim at an elevation of 3,000 feet above the sea. Prop, usually by seeds; occasionally by suckers, which are kept rather close for a time after their removal from the parent plant. Jaeed G. Smith and W. H. Taplin. DIEFFENBACHIA (Dieffenbach, a German botanist). A ro'idece. Low, shrubby perennials: stems rather thick, inclined or creeping at the base, then erect, with a leafy top: petioles half cylindrical, sheathed to above the mid- dle, long, cylindrical at the apex ; blade oblong, with a thick midrib at the base; veins very numerous, the first and second parallel, ascending, curvingupwards at their ends : peduncle shorter than the Ivs. Differs from Aglaonema in floral characters. Central and South America. Perhaps a dozen species. Engler (in DC. Monogr. Fhaner. vol. 2) recognizes 6 species, with many varieties. Dieffenbachias are popular hothouse plants, being grown for their handsome and striking foliage. For Dieffenbachias, similar rooting material to that mentioned for Anthuriums, combined with a high and moist atmosphere, will produce a very healthy and luxuriant growth of foliage, especially after the plants have made their first few leaves in ordinary light pot- ting soil. Unless it be the very large-leaved kinds, like triumplianSj nobilis audSaunianvi, three or four plants may be placed together in large pots, keeping the balls near the surface in potting. Jenmani, Slinttlewortl


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