Large, glabrous, unarmed, resiniferous trees. Leaves paripinnate; stipules inequilateral: some oval and small, others large and foliaceous, soon caducous, leaving annular leaf scars; upper surface of rachis with 2 very small glandular openings (domatia) at level of petiolules; leaflets opposite or rarely alternate, entire, usually coriaceous and with translucid dots. Inflorescences terminal or axillary panicles or sometimes racemes; bracts and bracteoles soon caducous. Calyx : receptacle narrowly funnel-shaped; sepals 4, free, imbricate, somewhat unequal, ciliolate, coloured. Petals 5: 2 usually large, 1 smaller and 2 very small, rarely 1 large and 4 very small. Stamens 10, exserted, free or usually 9 lightly connate at base, all perfect; filaments filiform, glabrous to shortly hairy in lower half, alternately long and short in bud, strongly accrescent; anthers linear-oblong, dorsifixed, longitudinally dehiscent. Ovary on a long accrescent stipe, ellipsoid, compressed, glabrous; ovules many, elongate, situated in upper half of ovary; style slender, exserted; stigma capitate, terminal. Pod stipitate, asymmetric at base, flat, 2-valved, smooth, glabrous; endocarp coriaceous, rolling up and separating from exocarp when mature. Seed usually solitary, compressed, suspended by a funicle dilated at hilum; testa hard, glabrous, smooth; endosperm absent; cotyledons flat.
Species 9, trop. Africa; sthn trop. Afr. 3, Angola.