Tree 25-30 m. Twigs faintly angular, 2(-3) mm diameter, sometimes blackish, with small, scattered, pale lenticels, early glabrescent, hairs less than 0.1 mm; older twigs (blackish) brown, ± fissured, densely lenticellate. Leaves (thickly) chartaceous, (ellip-tic-)oblong, 10-16 by 4-6 cm, base short-cuneate or narrowly rounded, apex (short) acute-acuminate; upper surface brown, lower surface brown-grey, late glabrescent, hairs dense, scale-like, less than 0.1 mm; indistinctly papillose; dots absent; midrib ± flat above, lateral nerves 10-15 per side, at (50-)60-70° to the midrib, flat and inconspicuous above, little raised and ± contrasting in colour below, lines of interarching and venation faint; petiole 20-25 by 2.5 mm; leaf bud 12 by 2.5 mm, hairs greyish, scale-like, less than 0.1 mm. Inflorescences between the lower leaves and below, of the Knema-type; in male: a pubescent scar-covered brachyblast, 1-2 mm, sessile or to 2 mm pedunculate, with a cluster of 10-15 flowers, buds of variable sizes; bracts not seen; flowers with bright yellowish brown hairs 0.3 mm. Male flowers: pedicel 8-10 by 0.5(-l) mm, bracteole 4 by 4 mm, (sub)persistent; buds ovoid-ellipsoid, 4.5 by 3.5 mm, cleft c. 1/3, lobes 1.5 mm long, 0.2-0.3 mm thick. Androecium 4 mm; androphore 1-1.5 by 1 mm, with few hairs at the base, pale, 0.1 mm; synandrium 3 by 1-1.2 mm, thecae c. 16, subcontiguous, sterile apex 0.2 mm. Female inflorescences and flowers, and fruits not seen.
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