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Type: Article
Published: 2015-10-15
Page range: 19–30
Abstract views: 15
PDF downloaded: 3

Lacuneolimna gen. nov., Lacuneolimna zalokariae comb. nov. and Lacuneolimna novagallia spec. nov. (Bacillariophyceae) from the French Guiana diatom freshwater flora

CNRS, Université Paul Sabatier, ENFA, UMR 5174 EDB (Laboratoire Évolution & Diversité Biologique), 118 route de Narbonne, F-31062 Toulouse, France Université Toulouse 3 Paul Sabatier, CNRS, UMR 5174 EDB, F-31062 Toulouse, France
Université de Toulouse, UPS, INP, Ecolab (Laboratoire d’écologie fonctionnelle et environnement), 118, route de Narbonne, F-31062 Toulouse, France ; et CNRS, Ecolab ; F-31062 Toulouse, France
IRSTEA, 50 avenue de Verdun, 33612 Cestas
Goethe-University, Biologicum, Max von Lauestrasse 13, D-60439, Frankfurt am Main, Germany
Bacillariophyta Guiana shield South America tropical diatoms Algae

Abstract

The freshwater diatoms of the French Guiana have received little attention so far. A new diatom genus, Lacuneolimna, based on the species Eolimna zalokariae, is described from a small rainforest stream. Numerous ultrastructural features differ from the genus Eolimna, notably the pluriseriate striae lying between relief-like elevated virgae and depressed externally. In addition, another species new to science, L. novagallia, belonging to this new genus, was discovered in the same place. Detailed light and scanning electron microscope observations are used to characterize the morphology and the ultrastructure of these two new taxa.