Tree to 20 m tall; trunk 13-40 cm dbh. Leaves: petiole 4-10 mm long; blade coriaceous, narrowly elliptic, 6-11 by 1-4 cm, 2.6-6 times as long as wide, apex bluntly acute to acuminate, rarely shortly caudate, cuneate at the base, 5-12 pairs of secondary veins, tertiary venation reticulate, domatia with or without tufts of hairs. Inflorescence 4.5-10 cm long, 1-4-flowered; peduncle 0-7 mm long; pedicels 8-20 mm long, glabrous. Sepals ovate, 2-5 by 2-4 mm, 1-1.6 times as long as wide, apex acute to obtuse, glabrous, colleters inside. Corolla white; tube 11-31 mm long, lower part 6-19 mm long, upper part 5-10(-15) mm long, glabrous outside, glabrous or sparsely pubescent inside; lobes narrowly elliptic, 30-51 by 10-22 mm, 1.5-4 times as long as wide, apex acute, glabrous or sparsely pubescent inside and outside. Stamens not exserted from corolla tube, inserted at 7-21 mm from corolla base; anthers c. 6 by 2 mm. Disk cup-shaped, 1.5-3 mm high. Ovaries 2-4 mm high, glabrous; style 12-22 mm long; style head 3 mm long. Fruit wider towards the apex, 7.7-12.5 by 1-2.2 cm.
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