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1 May 2011 Étude Morphologique de Quelques Cymbellaceae des Pyrénées Françaises Incluant la Description D'une Espèce Nouvelle : Delicata couseranensis sp. nov.
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Abstract

Morphological studies of selected taxa in the Cymbellaceae from French Pyrenees including the description of a new species : Delicata couseranensis sp. nov. Lakes and wet rocks in the French Pyrenees are inhabited by diversified diatom communities. Taxa of Cymbellaceae are particularly numerous. Morphological studies using light- and scanning electron microscopy of selected species are presented herein. One of them belongs to the genus Delicata and is described as a new species, Delicata couseranensis sp. Nov. The new species is close to Delicata judaica (Lange-Bertalot et Krammer) Krammer et Lange-Bertalot in morphology but differs in the dimensions, the length/breadth ratio and the number of puncta in 10 µm. The detailed morphology of seven recently described species is also examined: Cymbella perparva Krammer, Cymbella maggiana Krammer, Cymbella simonsenii Krammer, Cymbella neoleptoceros Krammer var. tenuistriata Krammer, Cymbella subhelvetica Krammer, Cymbella lange-bertalotii Krammer and Cymbopleura laeviformis Krammer. The taxonomic affinities of all these taxa are discussed and data on their ecology and biogeography are given.

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René Le Cohu and Frédéric Azémar "Étude Morphologique de Quelques Cymbellaceae des Pyrénées Françaises Incluant la Description D'une Espèce Nouvelle : Delicata couseranensis sp. nov.," Cryptogamie, Algologie 32(2), 131-155, (1 May 2011). https://doi.org/10.7872/crya.v32.iss2.2011.131
Received: 30 May 2010; Accepted: 1 October 2010; Published: 1 May 2011
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