Woody climber, entirely glabrous. Stems striate with pustular lenticels, later covered with a smooth pergamentaceous bark. Leaves: petioles 3.5-8 cm; lamina broadly ovate to ovate, base cordate to truncate, apex acuminate, 8-12 by 4.5-8 cm, papillose patches sometimes (esp. in young leaves) obscurely visible in basal nerve-axils on lower surface, surfaces drying matt with reticulation obscure, papyraceous. Male inflorescences: a few arising together from the older, leafless stems, unbranched, very slender, zigzag or not, 7-15 cm long, flowers in spaced retrorse fascicles of c. 3, each fascicle subtended by a retrorse bract 1 mm long. Male flowers: minute, sessile; outer 3 sepals elliptic, 2 mm long, inner 3 sepals elliptic, concave, 1.5 mm long; petals 6, oblong with lateral edges incurved, 1 mm long; stamens 6, 1 mm long. Female inflorescences and flowers unknown. Infructescences unbranched, 20 cm. Drupes 3 on stout peduncles 1.5 cm, subnavicular-ellipsoid, 4.5 by 1.5-2 cm, pericarp (dried) very thin, endocarp thinly bony, 1 mm or less thick, slightly verrucose with a prominent apical carina and a shallow ventral groove scarcely intruding into the large seed-cavity; seed subhemicylindrical, ventrally flattened and with a median groove, endosperm ventrally transversely ruminate; embryo (BECCARI) with divaricate broad thinly foliaceous cotyledons, radicle terete, superior.
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