Glabrous liane or scandent shrub 10 m. or more in height; main trunk up to 12 cm. in diameter; young branches becoming yellowish brown or silvery brown, lenticellate, cylindrical.. Buds with very distinct scales.. Leaves opposite or rarely subopposite; petiole channelled, (3–)5–10 mm. long; blade papery, or subcoriaceous in some of the smaller-leaved forms, elliptic, 3–11 cm. long, 1.5–5 cm. wide, acuminate, cuneate or rounded at the base; margin dentate, sometimes indistinctly so, or entire; secondary veins in 5–8 pairs, arcuate.. Inflorescences of many-flowered divaricate cymes, usually axillary, more rarely the cymes clustered and appearing paniculate, blackish brown on drying; peduncles of the cymes 1–3 cm. long, not winged; bracts acute, 1(–2) mm. long, nearly opposite, denticulate-ciliolate; pedicels 0.2–1 mm. long.. Buds ovoid, 1 mm. long.. Flowers green or greenish yellow, pale at first becoming darker, 2 mm. in diameter, constricted at the middle.. Sepals up to 0.8 mm. long, obscurely toothed.. Petals elliptic, 1.3–1.5 cm. long, 0.6–0.7 mm. wide, the upper two-thirds spreading.. Disc 0.6–0.7 mm. in diameter, cup-like with 3 notches opposite the stamens.. Stamens with slender filaments; anthers 0.2 mm. wide.. Ovary pyramidal, 0.5 mm. long; style attenuate with a punctiform or capitate stigma; ovules 2 per locule.. Mericarps ovate-oblong, 4–5 cm. long, 1.6–2 cm. wide.. Seeds 3–3.5 cm. long, 1–1.2 cm. wide, the wing pale reddish brown, 1.5–2.3 cm. long, the cotyledonous portion dark brown 1.1–1.3 cm. long, 5–6 mm. wide, apiculate; cotyledons free but somewhat adherent; funicular pockets somewhat compressed, carried on a subcylindrical column ± 1 mm. high.. Fig. 13/5, p. 50.
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Shrub or small tree, often scandent, up to 4.5 m high. Leaves oblong to oblong-elliptic, 27-130 x 11-44 mm, glabrous, deep green. Inflorescence lax, dense. Mericarps brown. Flowers cream.