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Morphology of two Mastogloia species (Bacillariophyta) from Lac de Guiers (Senegal) and comparison with the type material of M. braunii

Bart VAN DE VIJVER, Cheikh Abdoul Kader FOFANA, El Hadji SOW, Christine COCQUYT, Saúl BLANCO & Luc ECTOR

en European Journal of Taxonomy 2017-374 - Pages 1-23 (EJT-374)

Publié le 05 décembre 2017

Morphology of two Mastogloia species (Bacillariophyta) from Lac de Guiers (Senegal) and comparison with the type material of M. braunii

Two Mastogloia Thwaites ex W.Sm. taxa were found during a survey of the diatom flora of Lac de Guiers, Senegal. Based on all currently available literature, one taxon could be identified as M. belaensis M.Voigt, a species formerly described from Pakistan. The second species showed some resemblance to M. braunii Grunow. Analysis of the type of M. braunii revealed, however, important morphologic differences, leading to the description of a new species from the Senegal population: M. senegalensis Van de Vijver, Fofana, Sow & Ector sp. nov. The present paper describes this new species and discusses and illustrates the morphology of M. belaensis and the type of M. braunii. All taxa are discussed with morphologically similar taxa.

Mots-clés :

Bacillariophyceae, Mastogloia belaensis, Mastogloia braunii, new species, Senegal, ultrastructure.

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