Two new Gomphonema species (Bacillariophyta) from the Maritime Antarctic Region

BART VAN DE VIJVER; KATEŘINA KOPALOVÁ; RALITSA ZIDAROVA; J. PATRICK KOCIOLEK

doi:10.11646/phytotaxa.269.3.4

Issue: Vol. 269 No. 3: 5 August 2016

Type: Article

Published: 2016-08-05

DOI: 10.11646/phytotaxa.269.3.4

Page range: 209–220

Abstract views: 25

PDF downloaded: 1

**Two new Gomphonema species (Bacillariophyta) from the Maritime Antarctic Region**

BART VAN DE VIJVER⁺⁻
KATEŘINA KOPALOVÁ⁺⁻
RALITSA ZIDAROVA⁺⁻
J. PATRICK KOCIOLEK⁺⁻

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

Charles University in Prague, Faculty of Science, Department of Ecology, Viničná 7, 12844 Prague 2, Czech Republic

”St. Kliment Ohridski” Univeristy of Sofia, Faculty of Biology, Department of Botany, 8 Dragan Tzankov Blvd., 1164 Sofia, Bulgaria

University of Colorado Museum of Natural History and Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, Colorado 80309, USA

Maritime Antarctica Gomphonema new species morphology Algae

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Abstract

Two new diatom taxa belonging to the genus Gomphonema were recorded during a survey of the Maritime Antarctic freshwater and limno-terrestrial diatom flora: Gomphonema jamesrossense sp. nov. and G.maritimo-antarcticum sp. nov. Detailed light (LM) and scanning electron microscope (SEM) observations are used to characterize the morphology and ultrastructure of the two new Gomphonema taxa. Comparisons with similar taxa and the ecological preferences of each species are added. The revision of these species confirmed the endemic nature of the Antarctic diatom flora.