Tree 20 m. Twigs 3(-4) mm diameter, slightly angular, glabrous; older twigs pale grey-brown, coarsely longitudinally cracking; lenticels not apparent. Leaves thinly membranous, elliptic-oblong, 16-23 by 6-9 cm, base cuneate or nearly rounded, apex abruptly acute-acuminate; upper surface dark olivaceous, glossy, lower surface bright or light brown or olivaceous, glabrous; not papillose; dots absent; midrib flat above, lateral nerves 13-15 per side, at (50-)60-70° to the midrib, faint, flat above, not contrasting in colour below, lines of interarching and venation (fine) indistinct; petiole 20-25 by 1.5-2 mm, brown blackish, rather contrasting in colour with the twig; leaf bud 10 by 1-1.5 mm, hairs powdery, 0.1 mm. Male inflorescences and flowers not seen. Female inflorescences glabrous, peduncle 6(-10) mm long, ending in one flower. Female flowers: glabrous, pedicel 12 mm, bracteole scar 3 mm below the apex; buds carnose, 9 by 7 mm, cleft c. 1/2, lobes 4-4.5 mm long; ovary 7 by 4.5 mm, minutely pubescent. Infructescence short pedunculate. Fruits solitary, ellipsoid-oblong, 8-8.5 by 3-3.5 cm, base and apex ± blunt or narrowly rounded, glabrous; pericarp 8—10(—15) mm thick, finely wrinkled, brown, glabrous; seeds elongate-ellipsoid, 4.5-5 cm; fruiting pedicel not seen.
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