Unarmed climbers with coiled tendrils, producing milky latex. Leaves opposite. Inflorescence terminal or axillary cymes. Corolla salver-shaped; tube cylindric; lobes overlapping to the left. Ovary 1-2-locular. Carpels completely fused. Fruit an indehiscent, many-seeded berry. Worldwide: 60 species in tropical America, Africa and Madagascar DRC: 20 taxa. |
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| Species | Botanical divisions | Content |
| bruneelii (De Wild.) Pichon | III,VI | Description |
| buchananii (Hallier f.) Stapf | IV,V,VI,VIII,IX,XI | Description, Image |
| camptoloba (K. Schum.) Pichon | III,IV,V,VI,IX | Description, Image |
| congolensis (Stapf) Pichon | II,III,IV,V,VI,VII | Description |
| cuneifolia Pichon [NrEnd] | XI | Description |
| eminiana Hallier f. | XI | |
| foretiana (Pierre ex Jum.) Pichon | III,IV,V,VI,VII | Description |
| glabra (Pierre ex Stapf) Pichon | II,III,IV,VI | Description |
| incerta (K. Schum.) J.G.M. Pers. | II,III,IV,V,VI | Description |
| kirkii Dyer ex Hook. f. | III,IV,V,VI,XI | Description, Image |
| lanceolata (K.Schum.) Pichon [NrEnd] | III,IV,V | Description, Image |
| landolphioides (Hallier f.) A.Chev. | VI,IX | Description |
| letestui (Pellegr.) Pichon | II | Description |
| ligustrifolia (Stapf) Pichon | III,IV,VI | Description |
| owariensis P. Beauv. | II,III,IV,V,VI,VII,VIII,IX,XI | Image |
| parvifolia K. Schum. | II,IV,V,VI,VII,XI | Image |
| robustior (K.Schum.) J.G.M.Pers. | II,III,IV,V,VI | Description |
| rufescens (De WIld.) Pichon | III,IV,V,VI | Description |
| villosa J.G.M.Pers. | III,IV,V | Description |
| violacea (K.Schum. ex Hallier f.) Pichon | II,VI,VII | Description |