Tree 3-7 m. Twigs 3-4 mm diameter, early glabrescent, hairs 0.1 mm long or less; older twigs ashy-brown or grey-black, coarsely striate, tending to crack and flake; lenticels small, sporadic, not apparent. Leaves membranous, oblong(-lanceolate) or lower half sometimes ± tapering, 25-45 by 5-13 cm, base narrowly rounded or (long-)cuneate, apex acute-acuminate; upper surface olivaceous or brown, lower surface dull (brownish) grey, glabrescent, hairs widely scattered, appressed, pale brown, less than 0.1 mm; not papillose; dots absent; midrib raised above, lateral nerves 16-20 per side, at 45-60° to the midrib, flat above, bright brown, contrasting in colour below, lines of interarch-ing and (coarse) venation distinct, ± flat above, obscure or invisible below; petiole dark brown, 12-25 by 2.5-4 mm, contrasting in colour with the grey twig; leaf bud 10-15 by 3 mm, with appressed hairs (0.3-)0.5 mm. Inflorescences in male: several crowded at the end or along lateral short-shoots 1-3 cm long (always?), with caducous cataphylls, and with apical leaf bud, below the leaves, peduncle 5-10 by 1-2 mm, ± flattened, hairs dense, pale brown, appressed, 0.1 mm or less; flowers 2 or 3 at the end of the peduncles; bracts caducous; female inflorescences (from infructescences): similar. Male flowers: pedicel slender, 8-10 mm, bracteole ± small, ovate, acute, (sub)apical; buds ± ellipsoid, 8-10 by 4 mm, apex and base (sub)acute, glabrescent, hairs dense, pale brown, appressed, 0.1 mm or less, cleft c. 1/2, lobes 4-5 mm, thin; perianth inside finely verruculose. Androecium 4-5 mm; androphore slender, 0.5-1 mm, hairs short, pale brown, 0.2 mm at very base only; synandrium subcylindrical, 4 by 1.5 mm, thecae 24-28, sterile apex absent or slender, 0.5 mm. Female flowers not seen. Fruits 1 or 2 together, sometimes crowded and then infructescence appearing more-fruited, (ellipsoid-)oblong, 4-5 by 1.5-2 cm, ± fusiform, apex and base narrowed into 3 mm beak and pseudostalk, hairs dense, rusty, (0.2-)0.5 mm; pericarp 2(-5) mm thick, seeds 3 cm by 8-10 mm; fruiting pedicel terete, 6-8 by 1.5-2.5 mm, minutely pubescent, bracteole scar subapically.
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