Tree 10-25 m. Twigs faintly ridged or not, 2-4(-8) mm diameter, with grey-brown hairs 0.1 mm, early glabrescent; bark finely striate, not flaking; lenticels inconspicuous. Leaves membranous or thinly chartaceous, elliptic-oblong to oblong-lanceolate, 10-22 by 3-8 cm, base attenuate, apex acute-acuminate; upper surface drying olivaceous to brown, often with paler markings, sometimes faintly pale pustulate, lower surface glabrescent, hairs 0.1 mm; dots absent; midrib above flattish; nerves 10-15 pairs not particularly contrasting, above thin, flattish or sunken, beneath with lines of interarching neither regular nor prominent; venation lax, rather faint; petiole 5-10 by 1.5-2.5 mm; leaf bud 10 by 1.5 mm, with hairs 0.1 mm. Inflorescences in male 3 (or 4) times branched, many-flowered, 4-10 by 2.5-6 cm, peduncle 0.2-2 cm long; in female: 5 by 3.5 cm; with dense to sparse stellate hairs 0.1-0.2 mm; bracts elliptic-oblong, acute, l-2(-4) mm long, caducous; flowers generally 1-3 together; perianth 2-lobed, glabrescent except at the very base, pedicel with hairs 0.1 mm long, not articulated. Male flowers: pedicel 1.5-3 mm long; buds as seen laterally ± circular, slightly broader than long, slightly laterally compressed, not or but slightly collapsed on drying, 2.2-2.7 by 2.6-3 mm, cleft to the base, lobes 0.1-0.2 mm thick; androecium laterally much flattened, above broadly rounded, 1.5-1.7 by 2 mm (Plate 1: 26); thecae 24-28(-32), erect, at apex free for 0.1 mm long, column at apex narrowly hollowed for 1/3-2/3; androphore to 0.1 mm, broadly attached. Female flowers (immature): pedicel 1.5-2 mm long, buds broadly ovoid, 1.5 by 1.4 mm, cleft nearly to the base; ovary ovoid, 1.1 by 0.6 mm, glabrous, style and stigma minutely 2-lobed. Fruits 1-20 per infructescence, globose or subglobose, 1.1-1.4 cm diameter, glabrous, drying light to dark brown, with or without coarse, paler coloured lenticels or warts; pericarp 1.5-3 mm thick, woody-granular; fruiting pedicel 3-4 mm; perianth not persistent.
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