Slender climber. Stem herbaceous, up to 2 mm Ø. Leaves: petioles 2-9 cm, glabrous or sometimes sparsely puberulous towards the top; lamina ovate to broadly ovate, 5-9 by 4-8 cm, usually acuminate towards the apex, base broadly rounded to very slightly cordate; very fine and regular, reticulation raised on both surfaces, glabrous, but lower surface sometimes puberulous around insertion of petiole; papyraceous. Male inflorescence axillary (often slightly supra-axillary) consisting of very slender, compound umbelliform cymes 2.5-6 cm long, solitary or sever-al along an axillary shoot, which is sometimes leafy; usually glabrous, sometimes puberulous; frequently with minute scales at the base. Male flowers white, entirely glabrous with pedicels 1-2 mm, arranged in clusters; sepals (6 or) 8, elliptic to (broadly) oblan-ceolate, 1-1.5 mm, apex obtuse; petals (3 or) 4, broadly obovate to obdeltoid, c. 0.5 mm long; synandrium about 0.5 mm long. Female inflorescence similar to male but cymes usually solitary. Female flowers with very short pedicels, c. 0.5 mm, or ses-sile, entirely glabrous; sepals 3 or 4, ± elliptic about 0.75 by 0.25 mm; petals as in male; carpel ellipsoidal, 1 mm long. Drupes red with filiform pedicels 2-4 mm, obovate to broadly obovate in outline, 4-5 by 3.5-4 mm. Endocarp perforate, dorsally bearing 2 longitudinal rows of 7-9 transverse ridges which are sometimes transversely 2-lobed or divided, thus forming 4 longitudinal rows of papilliform pro-cesses: surface rugulose between ridges or processes.