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Issue: Vol. 655 No. 2: 25 Jun. 2024
Type: Article
Published: 2024-06-25
DOI: 10.11646/phytotaxa.655.2.3
Page range: 144-158
Abstract views: 56
PDF downloaded: 0

New insights into the morphology, taxonomy and geographical distribution of Pleurotaenium subcoronulatum (Zygnematophyceae, Desmidiales)

Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South Africa
Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South Africa
desmids new record infraspecific taxa Docidium subcoronulatum var. major Algae

Abstract

This study investigates the morphology and distribution of infraspecific taxa of P. subcoronulatum. Research identified taxonomic issues and discrepancies in prior literature concerning morphological similarities among infraspecific taxa. The consolidation of two closely related taxa into a single variety, P. subcoronulatum var. majus, is suggested as a possible solution. This paper presents the first comprehensive morphological description (including dimensions) along with the first-ever images in the form of scanning electron micrographs of P. subcoronulatum var. majus. In addition, a new known geographical location for this taxon in the Okavango Delta, Botswana, expands its known distribution beyond previous records.

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