Tree 15-20 m. Twigs bluntly angled, 2-3 mm diameter, (bright) brown or reddish brown, early glabrescent, hairs scale-like, 0.1 mm long or less; older bark striate, neither cracking nor flaking; lenticels not apparent. Leaves chartaceous or coriaceous, elliptic-oblong to oblanceolate, base attenuate or nearly rounded, apex acute-acuminate, 8-23 by 3-8 cm; upper surface olivaceous, lower surface pale grey-brown, late glabrescent, hairs scattered, scale-like, 0.1 mm or less; faintly papillose; dots absent; midrib flat above, lateral nerves 13-17 per side, at 50-80° to the midrib, sunken above, lines of interarching indistinct, venation invisible above, faint or distinct below; petiole 12-15 by 1.5-3.5 mm; leaf bud 10 by 1.5 mm, hairs 0.1 mm or less. Inflorescences between the leaves or below, of the Knema-typc, in male: a (sub)sessile, simple, scar-covered bra-chyblast to 5 by 3 mm, glabrescent, with (l-)2-7 flowers, buds of various sizes; bracts broad-triangular, pubescent, 0.5(-l) mm, caducous; female inflorescence a few-flowered sessile wart-like brachyblast, 1-2 mm diameter; flowers with hairs 0.1 mm. Male flowers: pedicel slender, 5-7 mm long, bracteole small, caducous, scar thickened, apical or to 2.5 mm below; buds firm, elongate-tubular, 8-8.5(-9) by 2 mm, apex narrowly rounded, base shortly attenuate, inside glabrous, smooth, but in the lower 3-3.5 mm, the part facing the androphore, conspicuously thickened with irregular wart-like structures, cleft nearly 1/4, lobes 1.5-2 mm long, 0.3-0.4 mm thick, at anthesis curved outwards, exposing the apical part of the synandrium. Androecium slender, 8-8.5 mm; androphore slightly widened above, 3-3.5 by 0.7-1 mm, minutely pubescent in the lower 1/2-2/3, gradually passing into the synandrium; synandrium 5-5.5 by 0.8-1.2 mm, narrowed in the upper half, thecae 6 or 7, widely spaced (i.e. anthers 3; or 6?), sterile apex acute, 0.1-0.4 mm. Female flowers not seen. Fruits 1 or 2 (or 3) per infructescence, fusiform or ob-ovoid-oblong, (4-)4.5 by (1-)1.3 cm, apex subacute or narrowly rounded, base narrowed into a 10 mm long pseudostalk, hairs dense, scale-like, less than 0.1 mm; pericarp less than 1 mm thick; mature seeds not known; fruiting pedicel slender, 30-35 by 0.8 mm, bracteole scar at c. 2/3 below the apex.
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