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Type: Article
Published: 2023-03-09
Page range: 47-52
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Brachysira heteropolaris, a new diatom (Brachysiraceae, Bacillariophyta) species observed in an historic Weissflog slide from Scotland (UK)

Meise Botanic Garden, Research Department, Nieuwelaan 38, 1860 Meise, Belgium; University of Antwerp, Department of Biology – ECOSPHERE, Universiteitsplein 1, 2610 Wilrijk, Belgium
Brachysira Europe historic slide new species Weissflog Algae

Abstract

During the analysis of an historic slide of Loch Canmor, Aberdeenshire (Scotland, UK) prepared by Eugene Weissflog and conserved in the Van Heurck collection (BR, Belgium), an unknown, heteropolar Brachysira taxon was observed that could not be identified using the currently available literature. The new species, described as Brachysira heteropolaris sp. nov., is characterised in having a strictly heteropolar, broadly lanceolate valve outline with non-protracted, acutely rounded apices. The new species was observed in a dystrophic-oligotrophic, weakly acidic lake, based on the analysis of the composing diatom flora, dominated by several Brachysira species, Gomphonema coronatum and Encyonopsis cesatii var. geitleri.

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