Trigonachras Radlk.

Trees, monoecious. Indumentum of solitary simple hairs only. Leaves paripinnate, 1-9-jugate; no pseudo-stipules; neither petiole nor rachis winged. Leaflets opposite to alternate, pergamentaceous; margin entire; upper surface without wax, below sometimes with brownish glands in axils of nerves, without papillae; midrib above prominulous; nerves prominulous on both sides. Inflorescences axillary, together usually pseudoterminal, thyrsoid, hairy, ± glabrescent; cymes lax, 1-or few-flowered. Flowers regular, unisexual. Sepals 5, free, slightly imbricate, all about equal or sometimes the outer two slightly smaller, sometimes thinned out to the margin, no glands, margin entire. Petals 5, longer than the calyx, distinctly clawed; claw densely ciliate; blade entire, inside with (1 or) 2 erect, densely woolly, not crested scales nearly as long as the blade. Disc uninterrupted, annular, ± thick, glabrous. Stamens (7) 8 (9), in male flowers long exserted; filaments filiform, broadened to the base; anthers obovoid, dehiscence latero-introrse to la-trorse. Pistil sessile, densely hairy; ovary 3-locular with 1 ovule per locule; septa complete; style apical, about as long as the ovary; stigma grooved or slightly lobed. Fruits distinctly stipitate, capsular, loculicidal, dehiscing into 3 equal valves, not winged, smooth, outside minutely hairy or glabrous, inside usually densely and woolly hairy; pericarp hard-fleshy. Seeds ellipsoid, testa smooth, shining, black to brown; hilum nearly basal, elliptic, fairly big, but covering less than one third of seed; no arillode.