Tree 3-15 m high. Branches lenticellate, often strongly angled; branchlets glabrous. Leaves in whorls of 3 or 4; petiole 0.4-1.8 cm long, glabrous; blades 6.5-21 by 1.4-4.9 cm, 2.6-5.3 times as long as wide, coriaceous, sometimes subcoriaceous, elliptic to obovate, apex acute to acuminate, base slightly decurrent, glabrous above and beneath; secondary veins (10-)19-26 pairs, 0.3-1 cm spaced, straight to rather arcuate ascending, forming an angle of 50-85° with the midrib, forming a submarginal vein. Inflorescence 3-11.5 cm long, in whorls of 3 or 4, usually on the top of a short and robust (leafy) twig, 24-more than 35-flowered; peduncle 2.5-7.5 cm long, often robust, glabrous; pedicels 0.15-0.4 cm long, glabrous. Sepals ovate or subtriangular, 1.6-1.9 by 1.6-1.8 mm, 0.9-1.2 times as long as wide, apex obtuse to rounded, glabrous. Corolla white, 3.2-4.5 mm long in the mature bud and forming a broadly ovoid head of 1-1.8 by 1.8-2 mm, with an obtuse to rounded apex, usually indistinct from the tube, glabrous outside, villose from just around the mouth downwards for 1.5 mm; tube 3.1-4.2 mm long, 1.8-2.2 times as long as calyx, 1.8-2.1 times as long as lobes; lobes ovate, 1.7-2 by 1.5-2.1 mm, 0.9-1.1 times as long as wide, apex obtuse. Stamens inserted at 1.6-3 mm from the base, 0.6-0.9 of the length of the corolla tube; filaments 0.5-0.6 mm long; anthers 9-17 by 2-4 mm, 3.7-5 times as long as wide. Disk cup-shaped, 1.2-1.8 mm high, 0.6-0.8 times as long as ovary, crenate. Pistil mostly glabrous; ovary of 2 carpels which are fused at the base, 1.1-1.4 mm high; style filiform, 1.3-1.8 mm long; style head 0.7-1 mm long. Fruit black or purplish black when mature, obversely trapezoid, 7-11 by 8.5-15 mm, 0.7-1 times as long as wide; mericarps connate for 0.6-0.85 of their length, apices widely spreading, acute, distance between apices 6.5-13 mm, very narrow but thickened at the base, glabrous, sometimes only 1 carpel developing. Seeds 5-8.5 by 1.8-2.7 mm.
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