Propagated by seed.
Dioscorea (Yam). Dioscoreaceæ.
The tubers may be divided in autumn or spring, when not growing. Seeds are sometimes used, so are the tubers which form in the axils by the leaves. Stove species can be propagated by cuttings of the half-ripened wood.
Diosma. Rutaceæ.
Cuttings in sandy peat, and under a frame placed in very gentle heat, will soon root.
Diospyros (Date Plum, Persimmon). Ebenaceæ.
Seeds are used for the hardy species. Also by cuttings of half-ripened shoots. Those requiring stove heat strike best from ripened shoots, placed in sand in a brisk bottom heat during spring. See also [Persimmon].
Dipcadi, Uropetalum. Liliaceæ.
Increased by offsets in spring.
Diplacus. See [Mimulus].