Tree (2.5-)6-15 m. Twigs 3-6(-8) mm diameter, at first with short grey brown to rusty hairs 0.1 mm long, glabrescent; bark finely striate, not tending to crack or flake. Leaves chartaceous or thinly coriaceous, elliptic-oblong to oblong-lanceolate, (20-)30-50 by (6-) 10-17 cm, base rounded or cordate, apex acute(-acuminate); drying greenish brown, often ± glossy above; lower surface with persistent or deciduous sparse pale brown or greyish stellate hairs 0.1-0.2 mm long; dots absent; midrib raised above; nerves 18-25 pairs, ± flat above; venation (in)distinct; petiole 15-40 by 3-5 mm. Inflorescences: sessile, brachyblast simple, warted, or 2-or 3-furcate, to 10 mm long, in male 1-10-flowered, female 1-5-flowered; flowers with greyish brown hairs 0.1 mm long or less; perianth 3-lobed, creamy or pale brown inside. Male flowers: pedicel 4-8 mm long, bracteole caducous or subpersistent, median to subapical; buds obovoid, (3-)4-5.5 by 3-5 mm, cleft 1/2-3/4, lobes 0.7-1 mm thick; staminal disc circular or faintly triangular, flat or concave, 1.8-3 mm diameter; anthers 12-25 (14-25 in Borneo), ± half-erect, just sessile, 0.5-0.7 mm long, not or only little touching; androphore slender, sometimes tapering, 0.8-1.5 mm long. Female flowers: pedicel (2-)5-8 mm long, bracteole about median; buds obovoid-oblong, 5-6 by 3.5-4.5 mm, cleft c. 1/2, lobes 1 mm thick; ovary ovoid, 2.5-3 by 1.5-2 mm; style 1.5 mm long, stigma ± flat, inconspicuously 2-lobed and each lobe again 2-4(-5)-lobulate. Fruits variable, 1 or 2 per infruc-tescence, subglobose to ellipsoid-oblong, ridged and sometimes slightly saccate at base or not, apex obtuse to subacute, (3-)4-6 by 2-3.5 cm, with hairs (0.1-)0.2 mm long, sometimes glabrescent; dry pericarp 3-4 mm thick; fruiting pedicel (2-)5-12 mm long.
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