Increased by half-ripened cuttings, in sand, under a bell-glass, in a cool house, during spring. =Bactris.= _Palmæ._ Increased by suckers, which are very easily produced. =Badamea.= See Terminalia. =Bæa=, Dorcoceras. _Gesneraceæ._ Propagated easily by seeds. =Bæckea.= _Myrtaceæ._ Increased by cuttings of young wood, which will root freely if placed in a pot of sand, with a bell-glass over them, in a cool house. =Bæria.= _Compositæ._ Propagated by seeds sown in spring. =Bahia=, Phialis. _Compositæ._ Increased by seeds, or by divisions. =Balbisia=, Ledocarpum. _Geraniaceæ._ Propagated by seeds, or by cuttings made from the half-ripened wood, placed in sand, under a hand-glass. =Baldingera.= See Premna. =Balfouria.= See Wrightia. =Balm= (_Melissa officinalis_). _Labiatæ._ Seeds sown out-doors in spring. Division. =Balsam= (_Impatiens balsamina_). _Geraniaceæ._ Increased by seeds sown in early spring, in pans of rich, sandy soil, and placed in a gentle bottom heat of about 65°. Or the seeds may be sown directly in the garden when the weather becomes warm. Varieties increased by layers in late summer, under glass, or by veneer grafting. =Balsamodendron.= _Burseraceæ._ Increased by cuttings taken from the ripe young wood, in spring, and placed under a hand-glass, in bottom heat. =Balsam-tree.= See Clusia. =Bambusa= (Bamboo). _Gramineæ._ Propagated by careful division of well-developed plants, in early spring, just as new growth is commencing; establish the divisions in pots. If young shoots are layered, leave only the end exposed. =Banana= and =Plantain= (_Musa sapientum_, _M. paradisiaca_ and others). _Scitamineæ._ Edible bananas rarely produce seeds. The young plants are obtained from suckers, which spring from the main root-stock. These suckers are transplanted when two or three feet high. These plants themselves do not produce so good crops as the suckers which arise from them, and are not transplanted. Two or three suckers are sufficient for a plant at a time; what others arise should be transplanted or destroyed. The suckers should be set deep, as low as two feet for best results. In fifteen or eighteen months the plants will bloom, if they have had good care. The stem bears fruit but once, but new stems arise to take its place. =Baneberry.= See Actæa. =Banisteria.= _Malpighiaceæ._ Propagated by cuttings from ripened wood, which will root freely in sandy soil, under a hand-glass, in stove heat. =Banksia.= _Proteaceæ._