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Type: Article
Published: 2016-05-13
Page range: 235–246
Abstract views: 25
PDF downloaded: 1

Sellaphora labernardierei (Sellaphoraceae, Bacillariophyta), a new epilithic species from French spring and four new combinations within the genus Sellaphora

CNRS, UMR 6042, GEOLAB, BP 10448, F-63000 Clermont-Ferrand, France Université Clermont Auvergne, Université Blaise Pascal, GEOLAB, F-63057 Clermont-Ferrand, France
Luxembourg Institute of Science and Technology (LIST), Department Environmental Research and Innovation (ERIN), 41 rue du Brill, L-4422 Belvaux, Luxembourg
CNRS, UMR 6042, GEOLAB, BP 10448, F-63000 Clermont-Ferrand, France Université Clermont Auvergne, Université Blaise Pascal, GEOLAB, F-63057 Clermont-Ferrand, France
CNRS, UMR 6042, GEOLAB, BP 10448, F-63000 Clermont-Ferrand, France Université Clermont Auvergne, Université Blaise Pascal, GEOLAB, F-63057 Clermont-Ferrand, France
Luxembourg Institute of Science and Technology (LIST), Department Environmental Research and Innovation (ERIN), 41 rue du Brill, L-4422 Belvaux, Luxembourg
epilithic diatom Font-de-Bleix spring new combination Sellaphoraceae small naviculoid diatoms ultrastructure France Alage

Abstract

During a floristic survey of freshwater springs in the French Massif Central region, a new Sellaphora species (Bacillariophyceae) was found and is hereby described: Sellaphora labernardierei sp. nov. This new small species, with linear to linear-elliptical valves, slightly inflated in the middle, is formally described using light and scanning electron microscopy. The species has a single H-shaped chloroplast and striae usually biseriate tending to be uniseriate near the centre of the valve. The valve dimensions, the valve, pole and central area shapes, and the striae density and pattern allow their separation from similar taxa belonging to the genera Eolimna, Naviculadicta and Sellaphora. The ecological preferences of Sellaphora labernardierei are mineral waters with high nitrate concentrations. The examination of similar taxa belonging to the genera Eolimna and Naviculadicta and their characteristics lead to propose four new combinations of Sellaphora species.