Tree to 30 m tall, the young branches glabrous, the trunk lightly buttressed to 1 m. Stipules caducous (not seen). Leaves coriaceous, narrowly oblong, 5-8.5 by 1.8-3.2 cm, with long cuspidate acumen at apex, the tip 10-16 mm long, cuneate at base, glabrous on both surfaces; midrib prominent above, prominulous or plane beneath; primary veins 5—6 pairs, prominulous above, plane beneath; petioles 5-8 mm long, glabrous, slightly canaliculate, slightly swollen at base. Inflorescence of axillary and terminal racemes, the rachis glabrous. Flowers seen only in fruiting specimens. Calyx lobes 5, acute, glabrous on exterior, glabrous within except for a few hairs around base. Receptacle glabrous on exterior in fruiting condition. Style persistent below fruits, the stigma bifid or trifid. Fruit ellipsoid, 2.3-3.5 by 1.3-1.5 cm, epicarp smooth, glabrous; mesocarp thin, 0.25 mm; endocarp thin, hard, bony, 0.25 mm thick, glabrous within, opening by 2 lateral plates 1.9-2 cm long.
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