Tree 10 m. Twigs subterete, in the apical part ± angular and ridged, lower down lined or ridged, 4-6(-15) mm diameter, glabrescent, hairs 0.3-0.4 mm; bark finely to coarsely striate, not flaking; lenticels not conspicuous. Leaves in 2 or 3 rows, membranous, (obovoid-)oblong, 17-30 by 6-11 cm, base ± long-cuneate, apex shortly acute-acuminate; upper surface drying brown-olivaceous, lower surface brown, glabrous but midrib ± late glabrescent; dots absent; midrib raised or flattish above, glabrescent; nerves 15-20 pairs, above slender, raised, glabrous, lines of interarching ± sunken, distinct; venation lax, indistinct; petiole 15-25 by 2.5-3.5 mm, late glabrescent; leaf bud 8-10 by 4-5 mm, with hairs 0.3-0.4 mm. Inflorescences behind the leaves, with dense rusty hairs 0.3-0.6 mm; in male: 3 or 4 times branched, rather many-flowered, 10-12 by 5-6 cm, peduncle 3.5-4 cm, flowers in clusters of 3-5; in female: few-flowered, 4 cm long; bracts elliptic-oblong, acute, 5-10 mm long, densely pubescent, caducous; flowers with hairs 0.1-0.3 mm long, perianth 3-or 4-lobed, pedicel articulated. Male flowers: pedicel 1.5-2.5 mm long; buds subglobose-obovoid, ± collapsing on drying, 2.2-2.5 by 2-2.5 mm, apex broadly rounded, base ± rounded, cleft c. 1/2 to nearly 2/3, lobes 0.3-0.4 mm thick; androecium globose to obovoid, (1.2-)1.5 mm diameter, subcircular or blunt-angular in cross section (Plate 3: 63); thecae 12 or 14, acutish, 0.7-0.8 mm long, free for about halfway, somewhat curved towards the centre, column largely hollowed out, the basal part of the androecium consisting of a tapering androphore 0.5-0.7 mm long. Female flowers not seen. Fruits 1-3 per infructescence, broadly ellipsoid-obovoid, apex broadly rounded, base narrowly rounded and short-attenuate, 5-5.7 by 3.8-4.5 cm, glabrous, drying dark brown, sparsely coarsely tubercled; pericarp 10(—15) mm thick; fruiting pedicel 2-3 mm long, pubescent; perianth not persistent.
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