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Novitates Gabonenses 36. Tetrorchidium (Euphorbiaceae) in Africa with special reference to Gabon

F. J. BRETELER

en Adansonia 21 (1) - Pages 97-105

Published on 30 June 1999

The African species of Tetrorchidium have been studied in order to investigate the report of a corolla present in the female flowers of T. congolense. The study revealed that T. congolense does not have a corolla but an involucre. The same holds for T. gabonense which is described for the first time. Tetrorchidium tenuifolium is lectotypified and treated as a synonym of T. oppositifolium, which is lectotypified as well. Tetrorchidium ulugurense is maintained as a distinct species. A key to the resulting five species is given and their distribution is mapped.
Keywords :
Tetrorchidium, Euphorbiaceae, involucre, Gabon