Tree 2.5-9 m tall. Twigs 1-1.5 mm diameter, faintly angular, very early glabrescent, hairs less than 0.1 mm; older bark neither cracking nor flaking; lenticels inconspicuous or absent. Leaves chartaceous, (elliptic-)oblong, 6—14(—18) by 2-4.5(-7.5) cm, base short to long attenuate, apex acute-acuminate; upper surface dark brown, lower surface medium brown, very early glabrescent, hairs less than 0.1 mm; not papillose; dots absent; midrib (flat to) raised above, lateral nerves 11-16 per side, at 70(-80)° to the midrib, sunken above, lateral nerves on lower surface comparatively strong, raised, yellowish brown and contrasting, lines of interarching and venation indistinct; petiole 6-10(-16) by 1—1.5(—2.5) mm; leaf bud 4-6 by 1 mm, hairs less than 0.1 mm. Inflorescences between the leaves and below, sessile, of the Knema-typt; in male: a simple or sometimes 2-(or 3-)forked, scar-covered slender brachyblast to 6 mm long, glabrescent, with 1-4 flowers in a cluster, buds of slightly variable sizes; bracts minute, caducous; female inflorescence (from infructescence): a small brachyblast, 1 mm long, single-flowered; flowers glabrous, except for a few scattered scale-like hairs less than 0.1 mm. Male flowers: pedicel slender, 9-11 by 0.4-0.5 mm, bracteole caducous, scar 4-4.5 mm below the apex; buds elongate, ± tubiform, somewhat narrowed below the middle, 7 by 1.5 mm, apex ± blunt (to subacute), somewhat angled, base short-attenuate, cleft c. 1/4, lobes membranous, 2 mm long, 0.2 mm thick, at anthesis suberect, inside at base (where contiguous with the androphore) thickened with irregular warty appendages. Androecium 6-6.5 mm; androphore 3.5 by 0.4 mm, glabrous; synandrium 2.8 by 0.5-0.6 mm, thecae c. 15, sterile apex subacute, 0.2 mm. Female flowers (from remnant under the fruit, Conn c.s. 281): perianth tubiform, 7 by (1.5—)2 mm, lobes 1.8 mm long, slightly curved outwards. Fruits solitary, ± oblong, 3.5-4.5 by 1.2-1.5 cm, apex acute (with minute apiculum), the basal 1.5-2 cm narrowed into a slender pseudostalk, hairs dense, greyish brown, less than 0.1 mm; pericarp 1 mm thick; seeds ellipsoid, 2 cm long; fruiting pedicel slender, 25-30 mm long, 0.5 mm thick, bracteole scar ± median.
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