Suffrutices, trees or shrubs. Inflorescence a terminal, many-flowered corymbose cyme. Receptacle gradually narrowed into a pedicel-like base above the articulation, distinctly prolonged beyond summit of ovary as an "upper receptacle". Calyx usually an indistinctly lobed rim-like extension to the upper receptacle. Petals 4, cohering and falling together as a calyptra. Filaments and style c.2 times as long as petals. Ovary 2-locular. Fruit a berry. Derivation of name: joined together, presumably referring to the opposite leaves Worldwide: c. 1000 species in the tropics of the Old World Tanzania: 3 taxa. |
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| Species | FTEA divisions | Content |
| cordatum Hochst. ex C. Krauss subsp. cordatum | Description, Image | |
| guineense (Willd.) DC. subsp. guineense | Description, Image | |
| guineense (Willd.) DC. subsp. huillense (Hiern) F. White | Description, Image |