Tree 5-22 m. Twigs (1-) 1.5-2.5 mm diameter, glabrescent, hairs 0.1 mm or less; older twigs neither cracking nor flaking; lenticels small, indistinct. Leaves chartaceous or subcoriaceous, ovate-or elliptic-oblong, (4-)6-14 by (1.5-)2-5.5 cm, base (short) attenuate, apex to 2 cm acute-acuminate; upper surface olivaceous or brown, lower surface somewhat paler, glabrescent, hairs sparse, cobweb-like, greyish, less than 0.1 mm; not papillose; dots present, of various sizes; midrib raised above, lateral nerves 10-16 per side, at 60-80° to the midrib, interspaced by intersecondary nerves, fine, sunken above, ± flat and faint below, lines of interarching and venation thin, sunken above, indistinct; petiole 7-15 by 1-2 mm; leaf bud 10 by 1.5 mm, hairs 0.1 mm or less. Inflorescences between the leaves, minutely pubescent, pedunculate (sometimes subsessile in female), ending in a simple or forked scar-covered brachyblast; in male: peduncle 3-8 by 1 mm, brachyblast up to 5 mm with a subumbel of 2-5 flowers, buds of various sizes; bracts 1 mm, rusty-pubescent, late caducous; in female: sessile or to 10 mm pedunculate, ending in 1 (or 2) flower(s); flowers with sparse hairs 0.1 mm or less. Male flowers: pedicel 2-4 by 0.5-0.7 mm, bracteole ovate, 0.5-1 mm, caducous, subapical; buds carnose, oblong-cylindrical, 6-8 by 2(-2.5) mm, apex (sub)acute, base shortly narrowed, cleft 1/4-1/5, lobes 1.5 mm long, 0.3 mm thick. Androecium slender, 4-4.5 mm; androphore 2.5 by 0.6(-0.7) mm, with few hairs less than 0.1 mm at base; synandrium 1.5 by 0.7 mm, thecae 10-12, sterile apex 0.1-0.2 mm long, blunt. Female flowers: pedicel 7-10 mm, bracteole caducous, scar distinct, 2-3 mm below the apex, the part above the scar thickened; buds elongate, larger than in male, 7-10 by 2.5-3 mm, narrowed towards the apex, cleft l/6(—1/8), lobes 1-1.5 mm long; ovary elongate, 6 by 2 mm, with silky hairs 0.3 mm. Fruits single (rarely 2), ± ellipsoid, 3.5-4(-4.5) by 2 (-2.2) cm, apex ± acute or somewhat beaked, base narrowed into a broad pseudostalk 5 mm long, hairs rust-coloured, scurfy, 0.1 mm or less; pericarp 2-3 mm thick; seeds ellipsoid(-oblong), 2.5 cm; stipe (including fruiting pedicel) straight, 20-25 by 1-2 mm, with scars of bract, bracteole, and perianth visible.
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