The genus Urera (Urticaceae) in eastern tropical Africa

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Abstract
The species of Urera Gaud. occurring in eastern tropical Africa are revised. Three species are recognized: U. cameroonensis Wedd., occurring from Uganda to the South African Republic (Natal), U. sansibarica Engl., restricted to the coastal zone of Kenya and Tanzania, and U. hypselodendron (Hochst. ex A. Rich.) Wedd., occurring in montane forest from Ethiopia to Malawi. The original material of U. hypselodendron var. flamigniana Hauman (nom. inval.) and var. platyrrhachis Hauman (nom. inval.) is excluded from U. hypselodendron; the same applies to the other material of U. hypselodendron cited from central Zaire in Flore du Congo belge. Distribution maps of the eastern African species are provided. Also included is a preliminary study and discussion of the generic subdivision of Urera, with special reference to the species of this revision.