Prostrate or twining herbs. Leaves petiolate, linear, oblong, lanceolate, ovate or elliptic, often mucronulate. Flowers axillary, solitary in the African species, on long peduncles. Sepals 5, herbaceous, acute or acuminate, the 3 outer ones much larger than the inner, ovate and more or less decurrent on the peduncle, enlarged in fruit. Corolla funnel-shaped, usually entire outside, with 5-well-defined hairy mid-petaline bands. Stamens 5, included, filiform; pollen smooth. Disk small or absent. Ovary bilocular, 4-ovuled, glabrous; style 1, simple, filiform, included, stigmas, 2, thick, globular or oblong. Capsule ovoid or globose, bilocular, 4-valved and 4-seeded. Seeds trigonous or globose, black.
Worldwide: Species 5, in tropical regions.
DRC: 1 taxon. |
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