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Issue: Vol. 594 No. 3: 28 April 2023
Type: Article
Published: 2023-04-28
DOI: 10.11646/phytotaxa.594.3.4
Page range: 204-212
Abstract views: 365
PDF downloaded: 7

Gomphocymbellopsis guijiangensis sp. nov. (Cymbellaceae; Bacillariophyta), a new species from Guangxi Province with comments on associated specimens from Hubei Province, China

Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, P. R. China.
Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, P. R. China.
Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, P. R. China.
Museum of Natural History and Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, Colorado-80309, USA.
Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, P. R. China.
diatoms Jianghan Plain morphology new species Pearl River taxonomy Algae

Abstract

Gomphocymbellopsis guijiangensis sp. nov. and G. sp. were collected from the Guijiang River and from fossil deposits of the Jianghan Plain, respectively. The morphology of this new species is described by both light and scanning electron microscopy and compared with G. ancyli, the only other species of the genus Gomphocymbellopsis. G. guijiangensis sp. nov. is characterized by valves that are asymmetrical to the transapical axis and weakly asymmetrical to the apical axis, by the presence of pore fields at the apices, by three differently shaped stigmata, by externally and dorsally deflected distal raphe ends, and by often ventrally deflected proximal raphe ends. Therefore, we describe here G. guijiangensis sp. nov. as species new for science. Concise notes on the associated diatom flora and its ecological preferences are provided.

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How to Cite

Guo, J.-S., Ni, H.-P., Li, Y.-J., Kociolek, J.P. & Li, Y.-L. (2023)

Gomphocymbellopsis guijiangensis sp. nov. (Cymbellaceae; Bacillariophyta), a new species from Guangxi Province with comments on associated specimens from Hubei Province, China

. Phytotaxa 594 (3): 204–212. https://doi.org/10.11646/phytotaxa.594.3.4