Tree 12-25(-30) m. Twigs terete or faintly 2-angled, 2.5-4(-6) mm diameter, yellowish or reddish brown, or blackish, early glabrescent, hairs 0.1 mm or less; older twigs with scattered concolorous lenticels. Leaves chartaceous or (sub)coriaceous, (elliptic-) oblong, base cuneate, rounded, or (sub)cordate, apex acute (with ± blunt tip) or acute-acuminate, 17-30 by 5-10 cm; upper surface olivaceous or brown, lower surface greyish, (sub)glabrescent, indumentum variable, hairs scale-like, ± touching, but surface visible, 0.1 mm long or less, sometimes mixed with few scattered émergents; ± papillose; dots absent; midrib above slightly raised, lateral nerves 16-28 per side, at 45-60° to the midrib, sunken above, lines of interarching and venation faint or distinct; petiole 12-25 by 2-4 mm; leaf bud 10-15 by 2-3 mm, hairs appressed, 0.2-0.5 mm. Inflorescences between the leaves or below, of the Knema-type; male inflorescences not seen; female: (sub)sessile, simple or 2-to 3-armed, or irregularly shaped, scar-covered, brachyblasts to 8 mm long, short-woolly rust pubescent, with clusters of 2-4 flowers, buds of various sizes. Male flowers not seen. Female flowers: with hairs 0.2-0.4 mm; pedicel 0.5-1 mm, bracteole ovate, 2-2.5 mm, subacute, late caducous, apical; buds ovoid, apex subacute, base broadly rounded, 5 by 3.5-4 mm, cleft c. 1/3; ovary ovoid, 3 mm long, pubescent. Fruits usually single, subsessile, ovoid-ellipsoid, 2.5-4 by 2-2.5 cm, hairs dense, velvety, (dark) rust-coloured, 0.3-1 mm; pericarp 2-4.5 mm thick; seeds 2.5 cm; fruiting pedicel 1-3 mm long.
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