Shrubs, often partly climbing or climbers. Leaves opposite, whorled or alternate, simple or compound. Domatia sometimes present in the axils of lateral nerves on the lower leaf surface. Inflorescences few-many flowered, cymose or solitary. Flowers scented. Calyx with cup-shaped tube and 5-15 teeth. Corolla white or yellow, salver-shaped with 5-13 lobes. Fruit a deeply 2-lobed, 2-seeded berry. Derivation of name: from ysmyn, the Arabic name for the genus. Worldwide: 200 species, mainly tropical, with a few temperate. Mozambique: 10 taxa. Insects associated with this genus:
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Species | FZ divisions | Content |
abyssinicum Hochst. ex DC. | MS | Description, Image |
brachyscyphum Baker | Z,MS | |
breviflorum Harv. ex C.H. Wright | M | |
dichotomum Vahl | ? | Description, Image |
fluminense Vell. | N,Z,T,MS,GI,M | Description, Image |
meyeri-johannis Engl. | GI | |
multipartitum Hochst. | T,GI,M | Description, Image |
sp. A | Z | |
stenolobum Rolfe | N,Z,T,MS,M | Description, Image |
streptopus E. Mey. | N,T,MS,M | Description, Image |