Tree 7-20 m. Twigs 1.5-2.5 mm diameter, somewhat angular, glabrescent, hairs 0.1-0.2 mm; older twigs with inconspicuous scattered lenticels. Leaves ± membranous, elliptic-oblong, 9-17 by 4-6.5 cm, base narrowly rounded or cuneate, apex acute(-acuminate), upper surface dark brown, lower surface silvery-grey, early or late glabrescent, hairs sparse, scale-like, 0.1 mm or less; indistinctly papillose; dots absent; midrib slightly raised above, below chestnut-coloured, contrasting in colour, lateral nerves 10-15 per side, at 40-50° to the midrib, flat or sunken, indistinct above and below, lines of interarching and venation faint; petiole 10-20 by 2 mm, leaf bud 8-15 by 2 mm, hairs 0.1-0.2 mm. Inflorescences pedunculate, between the leaves or just below, with two short branches, and one central flower (or this abortive), flowers in small subumbels, hairs sparse, shaggy, 0.1 mm; bracts minute, pubescent, caducous; in male: peduncle 5-15 mm, lateral branches 15 mm with up to 2 mm long sterile basal part proceeding in a scar-covered slender brachyblast; flowers 2 or 3, buds of various sizes; female inflorescences: similar, peduncle 5-10 mm, few-flowered. Male flowers: pedicel 5-6 by 0.6-0.7 mm, bracteole caducous, minute; buds subcoriaceous, oblong-lanceolate, 10 by 3 mm, apex acute, base subacute, cleft c. 1/10, lobes 1 mm long, 0.7 mm thick. Androecium slender, 9-10 mm; androphore cylindrical, 4 by 0.7 mm, hairs sparse, less than 0.1 mm; synandrium 4 by 0.7-0.8 mm, thecae c. 14, sterile apex slenderly acute, 1.5 mm, glabrous. Female flowers: pedicel 14-15 mm, bracteole caducous, 4 mm below the apex; buds ovoid, apex acute, 5.5 by 3 mm, cleft c. 1/3; ovary 3.5 mm, minutely pubescent. Infructescences: peduncle ± slender, 10-15 mm long. Fruits single, 4.5-6 by 2-2.5 cm, fusiform, apex acute, beaked by style-remnant, base narrowed into a 5-7 mm long pseudo-stalk, hairs dense, mealy, dark-brown, 0.1 mm; pericarp ± woody, (3-)4-5 mm thick, the suture distinctly sunken at one side; seeds (somewhat immature) elliptic-oblong, 3 cm; fruiting pedicel 15-17 by 2-3 mm, glabrescent, bracteole scar 5 mm below the apex.
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