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Leaves: petiole 8-9 cm; petiolules 1.5-2 cm, glabrous or with some hairs; leaflets chartaceous, ovate or lanceolate, 7-11 by 3.5-6.5 cm, acumen c. 0.5 cm long, base cuneate or rounded; drying brownish, upper surface dull, glabrous, lower surface with short hairs on midrib, lateral nerves c. 4 pairs, at angles of 30-45° with midrib. Thyrses densely pubescent. Flower buds globose, 2-3 mm diam.; stamens in bud inwardly coiled. Perianth in anthesis white; tepals unequal, acute, with short hairs towards the tips, outer tepals ovate 3.2-4 by c. 2.2 mm, 3-5-nerved, inner ones lanceolate, 3-3.2 by c. 1 mm, at base narrow, c. 0.4 mm wide, 3-nerved. Filaments ± filiform, 4.5-6 mm long, at base c. 0.5 mm wide, protruding; staminal appendages very inconspicuous, clavate, including stipe 0.3-0.6 mm long; interstaminal glands present, small. Fruits unequally 4-winged, nut 2-3 cm long; longer wings more or less hemi-orbicular, c. 2 cm long, shorter ones c. 0.5 cm long.
