Liana, glabrous throughout, the branchlets subterete or faintly quadrangular, cinereous or brownish. Leaves with the petiole 5-8 mm. long, the blade elliptic or elliptic-oblong, obtuse at the base, obtuse or obtusely short-cuspidate at the apex, undulate or crenulate at the margins, 8-11 cm. long and 3-5.5 cm. broad, papyrace-ous, the costa elevated or nearly plane above, prominent beneath. Inflorescences 2.5-5 cm. long. Flowers 10-11 mm. in diam., the bracteoles ovate; sepals semiorbic-ular, rounded at the apex, erosulous at the margins, 1.3-1.5 mm. long and 2.2 mm. broad, papyraceous; petals elliptic-oblong or ovate-lanceolate, rounded at the apex, conspicuously serrate at the margins, 5-5.5 mm. long and 2.5-3 mm. broad, carnose; disc entire at the margin and flattened or rounded at the apex, about 0.5 mm. high; filaments of the stamens slightly broadened toward the base, 0.8-1 mm. long, the anthers about 0.6 mm. long and 1-1.2 mm. broad; ovary about 1 mm. in diam., the style about 0.5 mm. long. Fruits up to 15 cm. in diam., the mericarps connate for 3-5 cm., broadly oblong-deltoid, often conspicuously emarginate at the apex, the pericarp about 0.2 mm. thick distally and 0.5 mm. thick toward the base; seeds 10-14 per mericarp.
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