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Cocconeis voigtii F. Meister (Bacillariophyta) and other species from Meister’s and Voigt’s Nagasaki (Japan) material


Riaux-Gobin, Catherine; Compère, Pierre; Straub, François; Ector, Luc; Taxböck, Lukas (2018). Cocconeis voigtii F. Meister (Bacillariophyta) and other species from Meister’s and Voigt’s Nagasaki (Japan) material. Nova Hedwigia, 146:43-62.

Abstract

Meister (1935, 1937) described from a marine sample (‘Nagasaki, on shell’ from Nagasaki, Japan, collected by Manfred Voigt in 1933–1934) numerous new diatoms (Bacillariophyta), among which were nine species pertaining to the genus Cocconeis. Several of these taxa were originally succinctly described and often only illustrated by their sternum valve (SV). Afterwards, most of these new taxa were never cited again in the literature. Cocconeis voigtii is typified here, its original diagnosis amended with the description of its raphe valve (RV) and possible synonymies considered. A taxon from which the SV shows similarities with Cocconeis callosa, except for its stria density, is discussed and its relationships with C. sigmoradians envisaged. Cocconeis delicata, originally described by A. W. F. Schmidt, is reinvestigated. Several other taxa, present in the material from Nagasaki, and rarely mentioned in the literature, were noticed neither by Meister nor by Voigt in spite of their unique features, i. e., Cocconeis cyclophora var. decora and a new variety, Cocconeis cyclophora var. meisteri var. nov. described herein.

Abstract

Meister (1935, 1937) described from a marine sample (‘Nagasaki, on shell’ from Nagasaki, Japan, collected by Manfred Voigt in 1933–1934) numerous new diatoms (Bacillariophyta), among which were nine species pertaining to the genus Cocconeis. Several of these taxa were originally succinctly described and often only illustrated by their sternum valve (SV). Afterwards, most of these new taxa were never cited again in the literature. Cocconeis voigtii is typified here, its original diagnosis amended with the description of its raphe valve (RV) and possible synonymies considered. A taxon from which the SV shows similarities with Cocconeis callosa, except for its stria density, is discussed and its relationships with C. sigmoradians envisaged. Cocconeis delicata, originally described by A. W. F. Schmidt, is reinvestigated. Several other taxa, present in the material from Nagasaki, and rarely mentioned in the literature, were noticed neither by Meister nor by Voigt in spite of their unique features, i. e., Cocconeis cyclophora var. decora and a new variety, Cocconeis cyclophora var. meisteri var. nov. described herein.

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Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Systematic and Evolutionary Botany
07 Faculty of Science > Zurich-Basel Plant Science Center
Dewey Decimal Classification:580 Plants (Botany)
Language:English
Date:3 January 2018
Deposited On:22 Nov 2018 14:45
Last Modified:24 Sep 2019 23:52
Publisher:Schweizerbart und Gebr. Borntraeger
ISSN:1438-9134
OA Status:Closed
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1127/1438-9134/2017/043

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