Tree 15-40 m, 20-120 cm ø; buttresses up to 1 m tall; bark greyish brown, shallowly fissured. Branchlets initially densely fulvous stellate hairy, soon glabrescent, with 3-5 sharp ribs decurrent under the leaf-insertion, pale to dark brown, sparsely lenticellate; terminal buds ovoid-ellipsoid, 4-5 by 1-2 mm, scales ovate to linear. Stipules linear-acute to subulate, 5 by 2 mm, soon caducous. Leaves chartaceous to coriaceous, (4-)8-15(-18) by (2-)3-5(-7) cm (index 2-3½), broadest at or more commonly above the middle; surfaces concolorous, pale to dark brown, glabrous, above glossy; base cuneate and decurrent into the petiole, top rounded, obtuse-emarginate, acute to abruptly cuspidate; midrib prominent on both sides; nerves (10-)14-16(-20) pairs, thin and obscure on both surfaces, parallel, at an angle of 45-60°, arcuating but not anastomosing towards the margin; reticulation fine, areolate, obscure; petiole 2-5 mm long, 2-3 mm ø, glabrous, terete or adaxially flat. Inflorescence male, female or androgynous, densely fulvous stellate hairy; bracts and bracteoles ovate, c. 1 by ½ mm. Male rachis 10-20 cm, 2-3 mm ø; ♂ flowers in clusters of 3, perianth with 4-6 lobes, stamens 8-12, filaments 2-3 mm, anthers 0.2-0.3 mm long, pistillode sub-globose, c. 1 mm ø. Female or androgynous rachis 10-15 cm, 2-3 mm ø; ♀ flowers solitary, rarely in clusters of 2-3, staminodes rudimentary, styles 3, conical, 1-1½ mm. Ripe cupule sessile, cup-or saucer-shaped, ½-1 cm long, 3-3½ cm ø; wall woody, rim thick, incurved, covering the basal part of the fruit; lamellae 8-10, concentric, thick, densely greyish stellate hairy outside. Ripe fruit depressed ovoid, 2-2½ cm long, 3-3½ cm ø, glabrous, glossy, chocolate-brown, top rounded-acute, base truncate, scar concave, 1½-2 cm ø; wall woody, 3-5 mm thick, for the greater part free from the cupule; cotyledons flat-convex, irregularly divided by the endocarp intrusions.
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