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Type: Article
Published: 2016-08-31
Page range: 184–190
Abstract views: 19
PDF downloaded: 1

Humidophila komarekiana sp. nov. (Bacillariophyta), a new limnoterrestrial diatom species from King George Island (Maritime Antarctica)

University of Rzeszow, Faculty of Biology and Agriculture, Department of Soil Studies, Environmental, Chemistry and Hydrology, Zelwerowicza 8B, 35-601 Rzeszow, Poland
University of Rzeszow, Faculty of Biology and Agriculture, Department of Soil Studies, Environmental, Chemistry and Hydrology, Zelwerowicza 8B, 35-601 Rzeszow, Poland
“St. Kliment Ohridski” Univeristy of Sofia, Faculty of Biology, Department of Botany, 8 Dragan Tzankov Blvd., 1164 Sofia, Bulgaria
Charles University in Prague, Faculty of Science, Department of Ecology, Viničná 7, 12844 Prague 2, Czech Republic
Botanic Garden Meise, Department of Bryophyta & Thallophyta, Nieuwelaan 38, B–1860 Meise, Belgium University of Antwerp, Department of Biology, ECOBE, Universiteitsplein 1, B–2610 Wilrijk, Antwerpen, Belgium
Antarctica diatoms Humidophila new species Algae

Abstract

During a survey of the non-marine diatom flora of King George Island (South Shetland Islands), an unknown Humidophila taxon was recorded. Detailed light and scanning electron microscopy observations indicated that the unknown taxon could not be identified based on the currently available literature. The new species is described as Humidophila komarekiana sp. nov. and is characterized in having strictly linear valves with parallel margins and broadly rounded, never protracted apices, a filiform raphe with almost indistinct, straight proximal and distal raphe endings. The striae are composed of one, irregularly shortened areola. The mantle areolae are interrupted at the apices. The new species is compared with similar taxa in the Antarctic Region and worldwide. Notes on the ecology of the new species are added.