Type examination and typification of Cymbella affinis Kütz., C. turgidula Grunow and C. uenoi Skvortsov

Abstract

The original materials of Cymbella affinis Kütz., Cymbella turgidula Grunow and Cymbella uenoi Skvortsov are examined. I also designate the lectotypes and epitypes using these original materials. The epitype of C. affinis agree with the current concepts of this taxon except for Krammer (2002). The type designations by Krammer for C. affinis and C. turgidula do not have priorities for the designations herein. A new combination, Cymbella uenoi f. nipponica (Skvortsov) comb. et stat. nov., for Cymbella turgidula var. nipponica Skvortsov, is also described.