Tree 20-35 m. Twigs 1-2 mm diameter, early glabrescent, hairs sparse, 1 mm or less; older twigs coarsely striate or finely fissured, but not cracking nor flaking; without or with small inconspicuous lenticels. Leaves (thinly) chartaceous, (elliptic-)oblong or oblong-lanceolate, 5-10 by 2-2.5(-3) cm, base attenuate or cuneate, apex subacute or blunt, or narrowly rounded; upper surface olivaceous, lower surface grey-brown or pale brown, indumentum (sub)persistent, or early or late glabrescent, hairs dense or remote, scalelike, 0.1 mm or less; not or faintly papillose; dots and dashes present; midrib (flat or) raised above, lateral nerves 15-22 per side, at (70-) 80° to the midrib, flat and inconspicuous above, lines of interarching faint, venation faint or invisible; petiole 7-12 by 1(-1.5) mm, leaf bud 7-10 by J.5(-2) mm, hairs 1 mm or less. Inflorescences among the leaves or below, of the Knema-type: sessile or subsessile, simple (or 2-fid), scar-covered, slender, wart-or worm-like brachyblasts to 5 by 1-1.5 mm, glabrescent, peduncle to 2 mm; in male with a subumbel of (2-)4-6 flowers, buds of various sizes; female inflorescences 2(-4)-flowered; flowers with minute brown hairs 0.1-0.2 mm. Male flowers: pedicel slender, 3 by 0.5 mm, bracteole 1 mm, persistent or caducous; buds ob-long(-tubiform), 3.5 by 1-1.5 mm, apex narrowly rounded, base rounded, cleft c. 1/3, lobes 1(—1.5) mm long, (0.1-)0.2 mm thick. Androecium slender, 2.5 mm; androphore 1 by 0.3 mm, glabrous; synandrium 1.5 by 0.3-0.4 mm, thecae 12-14, sterile apex blunt-ish, 0.1-0.2 mm. Female flowers: pedicel 3 by 0.6 mm, bracteole caducous; buds (sub-mature) 3 by 2 mm; ovary not seen. Fruits solitary, subsessile, ellipsoid(-fusiform), (2-)2.5 by 1.4 mm, apex acute with minute pointed style-remnant, base contracted into 3 mm long pseudostalk, hairs scurfy, rust-brown, 0.1 mm or less; pericarp 2 mm thick; seeds ellipsoid, 1.5 cm; fruiting pedicel slender, 5 by 1 mm, indumentum minute, glabrescent, bracteole scar nearly 1 mm below the fruit.
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