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Deux nouvelles espèces de Rinorea, série Ilicifoliae (Violaceae) du Cameroun

Gaston ACHOUNDONG & Freek T. BAKKER

fr Adansonia 28 (1) - Pages 129-136

Published on 30 June 2006

Two new species of Rinorea, series Ilicifoliae (Violaceae) from Cameroon

Two new species, Rinorea mezilii sp. nov. and R. letouzeyi sp. nov., are described and illustrated from Cameroon littoral forest. Both belong to the series Ilicifoliae Engl. of subgenus Tubulosae Brandt. Within the group Ilicifoliae the two species hereby described differ from others by their stamen enlarged at the base and their rudimentary connective appendage adnate to the anther summit. The first species differs from the second by its habit densely branched and its alternate leaves with cuneate base, not cordate. Rinorea letouzeyi is characterised by its slender stem, much branched, subopposite leaves, clustered at nodes and at the end of twigs. The lamina base is cordate to amplexicaul. Rinorea mezilii is relatively well widespread in the entire southern part of the plain while R. letouzeyi appears to be a narrow endemic of its littoral fringe.

Keywords :

Violaceae, Rinorea, Tubulosae, Ilicifoliae, Cameroon, new species

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