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Leaves: petiole 4-11.5 cm, petiolules 1-2.5 cm, glabrous or partly palish hairy; leaflets thinly or thickly chartaceous, lanceolate or lanceolate-ovate, 7-17 by 2-8.5 cm, acumen 0.5-1 cm long, base cuneate or subcordate, glabrous on both surfaces, con-spicuously olivaceous when dry, often shining above, nerves on lower surface glabrous or hairy, domatia absent, nerves: 4-7 per side, at angles of 40-60° with midrib and arching towards the apex; thyrses slightly pubescent. Flower buds globose, 2-5 mm in diameter; stamens in bud inwardly coiled. Bracteoles early falling, c. 1.5 by 0.5 mm. Perianth: green, white, pinkish, or violet, all parts more or less hairy (see note 1); tepals lanceolate, acute, outer ones 5-7 by c. 2 mm, inner ones 4.5-6 by c. 1 mm. Filaments reddish, tepal-like, filiform towards apex, 10-13 mm long, dilated towards the base, 1.5-2.5 mm wide, margins curved around the staminal appendages; staminal append-ages clavate, dorsally inserted on the bases of the broad filaments, c. 0.6 mm long; interstaminal glands absent. Fruits unequally 4-winged, nut 2-3.3 cm long; longer wings lingulate, 2-2.7 cm long, shorter ones 1-1.4 cm long.
