Tree 4-25 m. Twigs not or but faintly ridged, 1.5-3 mm diameter, early glabrescent, with brown hairs 0.1 mm; bark finely striate, not flaking; lenticels mostly inconspicuous. Leaves membranous, elliptic-oblong to oblong-lanceolate, 6-14 by 1.7-4.5 cm, base attenuate, apex acute-acuminate, upper surface drying brown, sometimes with paler pustules or blotches; lower surface glabrescent, hairs 0.1 mm; dots absent; midrib slender, flat above, often reddish tinged, contrasting below; nerves 6-14 pairs, thin and flat above, inconspicuous beneath, lines of interarching faint; venation lax, inconspicuous; petiole 6-15 by 0.8-1.5 mm; leaf bud 8-15 by 1-2 mm with hairs 0.1 mm long. Inflorescences subglabrous or with sparse hairs 0.1 mm; in male: many-flowered, 2-4 times branched, 2.5-8 by 1.5-6 cm, peduncle 0.2-1 cm long; in female: up to 5(-10) by 4 cm; bracts 0.5-2.5 mm long, caducous; flowers (male) in loose clusters of 2-5, glabrous; perianth 2-lobed (in some specimens mixed with 3-lobed perianths), pedicel slender, not articulated. Male flowers: pedicel 0.6-1.5 mm long; buds slightly laterally compressed, subcircular (rarely slightly broader than long), not or somewhat collapsed on drying, I. 1-2 by 1.5-1.8 mm, cleft c. 1/2, lobes 0.1-0.2 mm thick; androecium ± flattened, in lateral view broadly circular to obtriangular, apex broadly rounded, 0.6-1.4 by 1-1.3 mm (Plate 1: 27); thecae 12-20, free apices 0.1-0.3 mm long, the column solid or hol-lowed to c. 1/3; androphore narrow, up to 0.3 mm long. Female flowers much larger than male, pedicel 1 mm long; buds ellipsoid-ovoid, 2-2.4 by 1.8-2.2 mm, cleft c. 1/3; ovary globose, 1.6 mm diameter, densely minutely pubescent, style ± absent, stigma distinctly 2-lobed, 0.2 mm long. Fruits 1—5(—10?) per infructescence, globose to short-ellipsoid, or obovoid, base rounded or contracted into a pseudostalk up to 2 mm, ridged or not, drying brown or blackish, 1.5-2.5 by 1.5-2 cm, glabrescent but often with remnants of indumentum towards base (lens!), without or with few coarse lenticels or tubercles; pericarp 4-6 mm thick, woody; fruiting pedicel 1-4 mm long; perianth not persistent.
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