Tree 10-45 m, 15-70 cm ø; buttresses up to 2 m tall, 1½ m out, 10 cm thick; bark greyish brown, smooth to flaky, lenticellate. Branchlets initially densely yellowish brown to fulvous tomentose by stellate hairs, later subglabrescent, terete, greyish brown, sparsely lenticellate; terminal buds ovoid, 2-4 by 2-3 mm, scales ovate to linear-acute. Stipules deltoid, 4-8 by 1-3 mm, soon caducous. Leaves thin-coriaceous,(5-)10-14(-l7) by (2-)4-6(-7) cm (index 2-4), broadest about the middle; surfaces discolorous, above glabrous, dull, greyish brown, underneath densely yellowish brown to fulvous tomentose by adpressed, stellate hairs; base rounded-acute, top acute to 1-2 cm acuminate; midrib strongly prominent on both surfaces; nerves (10-)12-14(-16) pairs, more or less prominent on both sides, subparallel, at an angle of 45-70°, arcuating but not anastomosing near the margin; reticulation fine, arched, scalariform, obscure on both surfaces; petiole 4-6 mm, 1-2 mm ø, densely stellate-hairy, adaxially flat or furrowed. Inflorescence male, androgynous or mixed, densely yellowish brown stellate-hairy; bracts narrowly ovate-acute, 1-1½ by ⅔-⅓ mm, bracteoles linear, ½-l by ⅓ mm. Male rachis 5-15 cm, 1-1½ mm ø; ♂ flowers solitary, rarely in clusters of 2-3, perianth (5-)6(-7)-lobed, stamens 10-12, filaments 3-4 mm, anthers 0.25-0.30 mm long, pistillode subglobose, 1-1½ mm ø. Androgynous or mixed rachis 7-10 cm, 1-2 mm ø; female flower solitary, perianth 6-lobed, staminodes 12, rudimentary, styles 3-4, conical, 1½-2 mm, recurved. Ripe cupule subsessile, ovoid-conical, 1½-2 cm long, 1½-2½ cm ø; wall thinner than 1 mm, covering the fruit completely; scales irregularly set, densely tomentose, subulate, recurved; dehiscence irregular. Ripe fruit ovoid-conical, c. 1½-2 cm through, densely yellowish brown tomentose; top acute, scar deeply concave to flat; wall thinner than 1 mm, for the greater part free from the cupule.
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