Tree 10-25 m. Twigs 2-4(-5) mm diameter, early glabrescent, hairs 0.1 mm or less; older twigs with or without few inconspicuous lenticels. Leaves thinly chartaceous or subcoriaceous, elliptic-oblong or oblong(-lanceolate), 14-27 by 4-9 cm, base cuneate (or nearly rounded), apex acute(-acuminate); upper surface olivaceous or dark brown, lower surface conspicuously grey-brown or whitish, (late) glabrescent, with scale-like widely spaced hairs 0.1 mm or less, and with scattered contrasting points (possibly scars of fallen stouter hairs) (lens!); papulation not apparent; dots absent; midrib above little raised, lateral nerves (13-) 15-20 per side, at 40-50° to the midrib, ± sunken (and faint) above, nerves below purple or brown, sometimes contrasting in colour, lines of inter-arching and venation indistinct; petiole 12-20 by 2.5-3 mm; leaf bud 10-15 by 2-3 mm, with (appressed) hairs 0.1 (-0.2) mm. Inflorescences between the leaves or below, of the Knema-typc, a (sub)sessile, simple or bifurcate scar-covered brachyblast to 7 mm, pubescent or glabrescent; in male: with a cluster of 4-8 flowers, buds of variable sizes; in female similar, fewer-flowered; flowers with hairs 0.2-0.4 mm. Male flowers (submature): pedicel 4-5 mm long, bracteole ovate or ± triangular, 3.5 mm, late caducous; buds ellipsoid, (4-)4.5-5 by 3-3.5 mm, cleft c. 1/3, lobes 0.3 mm thick. Androecium (3-)3.5 mm; androphore 1 by 0.8 mm, hairs less than 0.1 mm; synandrium 2 by 1 mm, thecae 16-20, sterile apex hemiglobose, 0.5 mm, glabrous. Female flowers: pedicel 4(-5) mm, bracteole 3 mm, caducous; buds (immature) ovoid, 3.5(-5) by 3(-4) mm, cleft c. 1/3; ovary ovoid, 2.5 by 2 mm, hairs less than 0.1 mm. Fruits solitary or 2 per infructescence, broadly ellipsoid, 3-4.2 by 2-3 cm, hairs dense, mealy, 0.1 mm; pericarp 2-4(-5) mm thick; seeds subglobose or ellipsoid, 2-3 cm; fruiting pedicel slender or ± stout, 2-4(-7) mm long.
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