Bocconia. Papaveraceæ.

Some species grow well from seed. By young suckers, taken from established plants during summer. Cuttings taken from the axils of the large leaves during early summer push freely, so that they will have plenty of roots before winter sets in. Root-cuttings of B. cordata strike freely.

Bœbera. Compositæ.

Increased by cuttings made of young, rather firm shoots, and placed in sand, under a glass.

Bœhmeria. Urticaceæ.

Increased by divisions.

Boleum. Cruciferæ.

Propagated by seeds sown in a pot in spring, placed in a frame or in the open border during summer.

Boltonia. Compositæ.

Increased by divisions of the root in March.