Increased by layers or by ripened cuttings, which should be taken off at a joint and placed in sand under a hand-glass in bottom heat.
Berkheya. Compositæ.
The herbaceous perennials usually by divisions of the plant in spring; the other species by cuttings placed under a glass.
Bertolonia. Melastomaceæ.
Propagated by seeds and cuttings.
Berzelia. Bruniaceæ.
Increased by young cuttings inserted in sand under a bell-glass, in gentle heat.
Besleria, Eriphia. Gesneraceæ.
Increased by cuttings placed in heat.
Bessera. Liliaceæ.