Tendrilled lianas; stems terete, glabrous, striate and rusty brown with numer-ous minute lenticels; wood simple. Leaves pinnately 5-foliolate, 3-20 cm long; petiole without wings, canaliculate on the upper surface, 0.5-7 cm long; rachis wingless to narrowly margined; leaflets narrowly ovate to oblong-elliptic or oblong-lanceolate, acute to gradually acuminate at the apex, attenuate to rounded at the base, 4.5-12 cm long, 1.5-4.5 cm wide, coriaceous, glabrous except for a few trichomes in the axillary domatia on the lower surface, the mar-gin entire to obscurely and remotely crenate in the distal half; petiolules 1-4 mm long; stipules inconspicuous. Thyrses in compacted, cylindrical, axillary or terminal, racemiform inflorescences to 11 cm long, the branches, pedicels and sepals canescent-tomentose; pedicels stout, 2-3 mm long, articulate in the lower third. Flowers ca. 4 mm long, large for the genus; sepals obovate, cup-shaped; petals narrowly obovate, ca. 4.5 mm long, glandular on both surfaces, the scales to 5 mm long with the basal part to 3 mm long, ca. 1.5 times longer than broad, villous on the margins, the anterior petals with the crest deeply bifid, 1.5-2 mm long, orange, each branch of the crest ca. 0.5 mm wide, the deflexed appendage deltoid, densely villous near the margins; disc glands about as wide as long, gla-brous except at the base; stamens to 2.5 mm long, the filaments flattened, wooly-pubescent throughout and the trichomes covering the base of the anther; ovary ovoid, densely tomentose, to 3.5 mm long, the style and stigmas short and stout. Capsules subglobose or ellipsoid, red, 2.5-4 cm long, 2-2.5 cm wide, sparsely to moderately puberulous to glabrous in age, often beaked at the apex, usually gradually tapered to a basal stipe, often apiculate at the apex, sometimes markedly 3-ridged when young, 3-celled, the stipe 3-6 mm long, the valves densely wooly within; seeds (1-)2(-3), ellipsoid to subglobose, 8-20 mm long, black, shiny, glabrous, the lower half enveloped by a fleshy white aril.
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