Tree 15-30 m, 30-90 cm ø. Branchlets initially densely fulvous stellate hairy, later glabrous, blackish brown, fissured; terminal buds ovoid-ellipsoid, 5-7 by 3-4 mm, scales ovate to linear-acute. Stipules linear, 5-7 by 2 mm. Leaves thick-coriaceous, (10-)12-16(-17) by (4-)5-6(-7) cm (index 2-2½), broadest at or above the middle; upper surface glabrous, dull or glossy, underneath sparsely greyish tomentose by adpressed stellate hairs, glabrescent; base rounded-acute to cuneate, top bluntly ½-2 cm acuminate; midrib strongly prominent beneath, flat above; nerves 11-14 pairs, thin and obscure on both sides, subparallel, at an angle of 45-60°, arcuating and anastomosing near the margin; reticulation fine, areolate, distinct beneath; petiole 1-2 cm, 1-2 mm ø, adaxially flat to shallowly furrowed. Inflorescence male or female, densely fulvous stellate hairy; bracts and bracteoles linear, 2-3 by ½ mm. Male rachis 10-20 cm, 2-3 mm ø; ♂ flowers in clusters of 3, filaments 3-4 mm, anthers 0.3-0.35 mm long, pistillode subglobose, 1-1½ mm ø. Female rachis 15-20 cm, 2-3 mm ø; ♀ flowers solitary, perianth thick-coriaceous, staminodes rudimentary, styles 3, conical, 1-1½ mm, recurved. Ripe cupule 1-2 cm stalked, cup-shaped, 1-1½ cm long, 3-4 cm ø; wall woody, thick, rim incurved, covering ⅓-½ part of the fruit, outside with 5-6 more or less concentric, flat or prominent lamellae. Ripe fruit broadly depressed ovoid-globose, 1-1½ cm long, 3-4 cm ø, glabrous, dark brown, glossy, top round-ed-umbonate, base rounded, scar convex; wall woody, 3-5 mm thick, for the greater part free from the cupule.
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