Tree 6-15 m. Twigs 3-5(-7) mm diameter, early glabrescent, hairs 0.5-1 mm; older twigs sometimes fissured; lenticels many, few, or absent. Leaves chartaceous or thinly coriaceous, (obovate-oblong or) elliptic-oblong, or oblong-lanceolate, 15-45(-50) by 5—14(—15) cm, base cuneate or (broadly) rounded, apex acute (with ± blunt tip) or acute-acuminate; upper surface olivaceous-brown, lower surface grey-brown, glabrescent, indumentum cobweb-like, hairs scale-like, 0.1 mm, mixed with few dendroid hairs 0.2 mm, in old leaves a faint cobweb-like covering remaining; distinctly or faintly papillose; dots absent; midrib above flat, lateral nerves 18-30 per side, at 40-80° to the midrib, flat above, brown and contrasting in colour below, lines of interarching and venation distinct above, indistinct below; petiole 20-40 by 2-5 mm; leaf bud 6-10 by 3 mm, hairs 1-2 mm long. Inflorescences pedunculate, between the leaves or below, or frequently axillary to (fallen) reduced leaves at the twig apex, with shaggy rusty hairs 1-2 mm; bracts 5-10(-20) mm, pubescent, caducous; in male: 4-9 by 3-4(-5) cm, peduncle 10-50 mm, branches to 20 mm, central axis (10-)20-50 mm long, with 1 or 2 (or 3) dense clusters of (3—)5—10 flowers, buds of various sizes; in female: smaller, 2-3 cm long, fewer flowered; flowers ± coriaceous, with woolly hairs 0.2-0.5 mm, sometimes subglabrescent. Male flowers: pedicel 5-8 mm, bracteole 4-6 by 6-8 mm, apex subacute or ± 3-topped, late caducous; buds ovoid, 5-8 by 5-7 mm, apex ± blunt, base broadly rounded, cleft 1/3-1/2, lobes 3 or 4, at sutures 0.5-1 mm thick. Androecium cylindrical or ± club-shaped, 4-6 mm, subtruncate; androphore broadly cylindrical, (1-) 1.5-2 by 1-1.2 mm, with hairs 0.2-0.4 mm long in the lower 2/3; synandrium 3-4 (-5) by 1.2-1.5 mm, thecae 12-16, sterile apex to 0.2-0.3 mm. Female flowers: pedicel 1-2 mm long, bracteole caducous; buds ovoid, apex subacute, 7-8(-9) by 6-7 mm, cleft nearly 1/2; ovary conical-ovoid, (3-)4 by 3-3.5 mm, hairs 0.3(-0.4) mm, stigma 1 mm. Fruits usually solitary (seemingly more-fruited in aggregated inflorescences), broadly ellipsoid, (4-)5-8 by 3-4.5 cm, hairs dense, rust-coloured, ± mealy, 0.3-0.5 mm, sometimes ± glabrescent; pericarp 7-10 mm thick; seeds not seen; fruiting pedicel 3-5 mm.
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