Liana. Older branchlets producing conspicuous swollen cups around the bases of the petioles. Leaves with petioles swollen at the base and apex, lamina not or only slightly peltate, ± ovate, penninerved. Inflorescences cauliflorous, fasciculate. Male flowers long-pedicellate; sepals in 5-6 whorls of 3 (i.e. 15-18 all together), imbricate; the outer 3-4 whorls minute, the inner 2-3 whorls much larger; petals 6, thick and fleshy; stamens 9 (a ring of 6 stamens slightly joined at the base surrounding 3 inner ones); anther-cells distinct, dehiscing by lateral, longitudinal slits; connective prolonged into a flattened tongue, filaments flattened. Female flowers unknown; young infructescences indicate 5-10 carpels. Drupe large with style-scar lateral (adaxial) and inconspicuous, subglobose, narrowed at base into a stipe, radiating from margin of disciform carpophore; endocarp thinly bony, dorsally bearing a coarse network of ridges, ventrally smooth. Seed broadly ellipsoidal, covered with a reticulate membrane; endosperm absent; embryo straight, cotyledons very thick, partly rugulose, radicle short, thick.
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