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Genus :


Family :



Trees. Leaves alternate, petiolate, simple, entire, stipules absent. Flowers small, hermaphrodite, in crowded terminal and axillary inflorescence. Calyx short, 3-5 toothed or lobed, persistent, lobes imbricate. Petals 4-5, oblong, recurved, imbricate, disc orbicular, 5-lobed. Stamens 8 or 10, free, inserted at the base of disc. Carpels 5-6, free, situated in the cavity of disc, one fertile, others imperfect, style stout, stigma truncate, ovule solitary, pendulous from a basal funicle. Fruit a small, slightly fleshy drupe, stone crustaceous or bony, 2-valved. Seeds gibbous, acute at one end.

Key to the species

Serial Key Reference
1a. Inflorescence tomentose; flowers sessile; petals pubescent B. cochinchinensis
1b. Inflorescence glabrous or puberulous; flowers with slender pedicel; petals glabrous B. lacifolia