RT Journal Article
SR Electronic
A1 Heudre, David
A1 Wetzel, Carlos E.
A1 Lange-Bertalot, Horst
A1 Van de Vijver, Bart
A1 Moreau, Laura
A1 Ector, Luc
T1 A review of Tabellaria species from freshwater environments in Europe
JF Fottea
YR 2021
VO 21
IS 2
SP 180
OP 205
DO 10.5507/fot.2021.005
UL https://fottea.czechphycology.cz/artkey/fot-202102-0005.php
AB The diatom genus Tabellaria Ehrenberg is one of the most widely distributed genera in freshwaters, both in benthos and phytoplankton. It is rather frequent in unpolluted, circumneutral to slightly acidic and poorly mineralized lakes, streams and peat bogs. Despite being studied intensively in the last decades, the taxonomy of this genus is still unsatisfactory as some authors recently proposed to consider most species as synonyms of Tabellaria flocculosa (Roth) Kützing. Several dozen of Tabellaria rich samples from Europe were investigated and six were selected to illustrate typical populations. Five new species are described based on detailed LM and SEM observations: Tabellaria acidodelicata sp. nov., Tabellaria hercynica sp. nov., Tabellaria koppeniana sp. nov., Tabellaria procera sp. nov. and Tabellaria valdeventricosa sp. nov. Additionally, the type materials of T. fenestrata, T. flocculosa and T. ventricosa have been investigated and illustrated together with a discussion on Tabellaria andina stat. nov., at present exclusively found in South America.