Ultrastructure and taxonomic position of Cymbella latestriata Pantocsek (Bacillariophyta)

Abstract

A rare Neogene species, Cymbella latestriata, was studied by light and scanning electron microscopy. Cymbella latestriata was found to have apical pore fields on both apices, although these are simple, very small. Because of the presence of apical pore fields APF the transfer of this species to the genus Cymbopleura is not justified as previously was suggested by Krammer. Thus, the study confirms Pantocsek’s original assignment of the taxon as Cymbella latestriata.