Tree 12-25 cm. Twigs sometimes yellowish, 2-3(-3.5) mm diameter, glabrous or early glabrescent, hairs 0.1 mm or less; older twigs smooth with irregular cracks, ± flaking; lenticels absent or few and faint. Leaves membranous or chartaceous, elliptic-oblong or oblong-(ob)lanceolate, (15-)20-35 by (5-)6-12 cm, base cuneate, rarely ± rounded, apex acute-acuminate; upper surface dull, greyish-olivaceous or brown, lower surface dull, paler, glabrous; not obviously papillose; dots absent; midrib above flat or slightly raised to the apex, lateral nerves 15-20 per side, at 45-80° to the midrib, sunken, indistinct above and below (faint intersecondary nerves often present), lines of interarching and venation indistinct; petiole 15-30 by 2-4 mm; leaf bud 10-15(-20) by 2-3 mm, hairs 0.1 mm. Inflorescences between the leaves or (KEP 52149, 63176; FRI 20025) axillary to fallen reduced leaves along up to 5 cm long lateral short-shoots with apical leaf bud; paniculate, pedunculate, glabrescent, hairs 0.1 mm or less; in male: 2-4.5 cm long, peduncle 15-20 mm, lateral branches 4-6 mm long, central axis 10-20 mm long, with 1 or 2 spaced subumbels, the latter with 4-8 flowers, buds of variable sizes; bracts caducous, 1-3 mm long; in female: peduncle 2-15 mm, not or hardly branched, 1-3 (-5)-flowered; flowers with hairs 0.1 mm or less. Male flowers: pedicel 4-8 mm, bracteole rounded, 2-3 by 4 mm, with minutely ciliate margin, (sub)persistent, apical or up to 1 mm adnate to the perianth; buds ovoid, 5 by 3.5-4 mm, cleft 1/3-nearly 1/2, lobes (0.3-)0.4 mm thick. Androecium 3-3.5 mm; androphore 1.5 by 0.6-0.7 mm, with hairs less than 0.1 mm towards the base; synandrium 2(-2.3) by 0.6-0.7 mm, thecae 14-16, sterile apex ± blunt, 0.2-0.3 mm. Female flowers: pedicel 3-4 mm, bracteole 1.5 by 4 mm; buds ovoid, 4.5 by 3 mm, cleft c. 1/3, lobes hard-fleshy, 0.5 mm thick; ovary ovoid, 3 by 2 mm, hairs scattered, less than 0.1 mm. Fruits 1 or 2 per infructescence, ellipsoid (-oblong), 5.5-8.5 by 3.5-4.5 cm, early or late glabrescent, hairs scurfy, pale brown, 0.1 (-0.2) mm or less (remnants of indumentum persistent in hidden places close to the fruit stalk); pericarp (5-) 10-15 mm thick, blackish brown; seeds ellipsoid, 4-5 cm; fruiting pedicel stoutish, 4-10 mm long.
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