BOMBAX BOUSSINGAULTIA. 189 



Bombax (Silk Cotton Tree). Malvaceee. 



Plants raised from seeds brought from their native hab- 

 itats make the best trees. Increased by cuttings, which 

 will root readily if not too ripe. They should be taken 

 off at a joint, and placed in sand under a bell-glass, in 

 moist heat. 



Borago. Borraginacece. 



Propagated by seeds sown from spring to autumn in 

 any good garden soil. Also by divisions in spring, or 

 by striking cuttings in a coldframe. 



Borassus. Palmacets. 



Increased by seeds sown in a strong bottom heat. 

 Boronia. Rutacece. 



Increased by seed. By young cuttings, or those made 

 from half-ripened wood. Place these in a thoroughly 

 drained pot of sandy soil, with one inch of sand on the 

 surface, and cover with a bell-glass. 



Borreria. Rviiacece. 



Propagated by cuttings. Those of the perennial kinds 

 strike root readily in a light soil, in heat. The annual 

 kinds require a similar treatment to other tender annuals. 



Boston Ivy, and Boston Vine. See Ampelopsis and Myrsi- 

 phyllum. 



Boswellia (Olibanum Tree). Burseracece. 



Increased easily by cuttings in sand under a glass. 

 Botrychlum. See Ferns. 



Bouchea. Verbenacecs. 



Increased during spring by cuttings, placed in sand 

 under a glass and in a gentle heat. 



Bougainvillea. Nyctaginacecs. 



Propagated by cuttings from the half-ripened wood. 

 Place in sandy soil, in a brisk heat. Also grown from 

 root cuttings. 



Bouncing Bet. See Saponaria. 



Boussingaultia (Madeira Vine). Chenopodiacea. 



Increased by seeds, and easily by means of the tuber- 

 cles of the stern. Also by the tuberg. 



