Typification and taxonomic status re-evaluation of 15 taxon names within the species complex Cymbella affinis/tumidula/turgidula (Cymbellaceae, Bacillariophyta)

By

Silva, Weliton José da
Jahn, Regine
Ludwig, Thelma
Hinz, Friedel
Menezes, Mariângela

Type

Article

Date of Publication

2015

Original Publication

PhytoKeys

Volume

53

Pages

1-25

Subjects

Cymbella rheophyla , Cymbella subturgidula , Cymbella tropica , Cymbella uenoi , Cymbellales , Diatoms , typification

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.53.4782

 

Abstract

Specimens belonging to the C. affinis / C. tumidula / C. turgidula species complex have many taxonomic problems, due to their high morphological variability and lack of type designations. Fifteen taxon names of this complex, distributed in five species, were re-evaluated concerning their taxonomic status, and lectotypified based on original material. In addition to light microscopy, some material was analyzed by electron microscopy. Four new combinations are proposed in order to reposition infraspecific taxa.