Tree 4-30 m. Twigs terete or faintly angular, (1.5—)2—3 mm diameter, glabrescent, hairs 0. l(-0.2) mm; older twigs faintly fissured but neither cracking nor flaking; lenticels not conspicuous. Leaves thinly coriaceous (but brittle), ovate-elliptic or ovate-lanceolate, 6-17(-25) by 2.5-6(-9) cm, base short-attenuate or broadly rounded, apex ± blunt or short-acuminate, often with blunt tip; upper surface dark brown, lower surface pale brown, glabrescent, hairs sparse, 0.1 mm or less; inconspicuously papillose; dots and dashes present, best to be seen towards the margin (lens!); midrib usually raised above; lateral nerves 12-20(-30) per side, at 50-80° to the midrib, closely set, flat and hardly visible above, almost flat and faint below, lines of interarching and venation faint or invisible; petiole 8-15 by 1.5-3 mm; leaf bud 8-15 by 2-2.5 mm, hairs 0.1-0.2 mm. Inflorescences between the leaves and below, of the Knema-type: up to 1 mm pedunculate, woody, simple or 2-to 3-armed, scar-covered brachyblasts to 5 mm long, ending in subumbels of flowers, brown pubescent or glabrescent; in male: with (5-) 10-40 flowers, buds of various sizes; in female: with (1—)2—5 flowers, buds about equal in size; flowers with hairs 0.1-0.2 mm, sometimes partly glabrescent. Male flowers: pedicel 2-4 by 0.6-0.8 mm, bracteole rounded, 0.5-1 mm, caducous, (sub)apical; buds (ellip-soid-)oblong, 3.5-5 by 2-2.5 mm, faintly triangular, cleft c. 1/3, lobes 1.5-1.7 mm long, 0.3 mm thick. Androecium subcylindrical, 2.5-4.2 mm; androphore shallowly grooved, 1-1.7 by 0.4-0.6 mm, glabrous or with few minute hairs in the lower half; synandrium narrowly oblong, 1.5-2.5 by 0.7-0.8 mm, thecae c. 12, contiguous or not, sterile apex irregularly rounded, 0.2-0.4 mm. Female flowers: pedicel 4-8 by 1-1.5 mm, bracteole scar 0.5-2 mm below the apex; buds ovoid(-oblong), narrowed to the apex, 4.5-5.5 by 3-4 mm, lobes 1.5-2 mm long; ovary ovoid(-oblong), 3.5-4 by 2-2.5 mm, hairs 0.2 mm. Fruits solitary or 2-5 in a cluster, ovoid, (broadly) ellipsoid, or subglobose, (1.5-) 2-2.5 by 1.5-2 cm, apex rounded or slightly narrowed, sometimes minutely beaked, hairs rusty, mealy, 0.1(-0.2) mm; pericarp 2(-3) mm thick; seeds ellipsoid, 1.5 cm; fruiting pedicel slender or ± thick, 5-10 mm long, bracteole scar 1-3 mm below the apex.
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