Diatoms (Bacillariophyta) are ubiquitous microalgae which produce a siliceous exoskeleton
and which make a major contribution to the productivity of oceans and freshwaters. They …

The identity and nomenclatural history of several smallcelled naviculoid taxa are revisited.
The species discussed here are important from the ecological point of view since they are …

We review the literature on species flocks in diatoms. Past descriptions of species flocks in
diatoms are of few species and do not demonstrate monophyly of the taxa explicitly. The …

A listing of the accepted freshwater diatom genera worldwide is presented, indicating the
distribution of the genera by continent. Out of a total of 249 genera, 63 (25%) of those …

This study seeks to determine the phylogenetic position of the diatom genus Rhoicosphenia.
Currently, four hypotheses based on the morphology of the siliceous valve and its various …

Type material of Navicula kotschyi was studied, and this species was transferred to
Dorofeyukea gen. nov. as D. kotschyi comb. nov. Dorofeyukea was described on the basis of …

A new species from the genus Placoneis (Bacillariophyceae: Cymbellales) is described on
the basis molecular and morphological data. Placoneis cattiensis Glushchenko, Kezlya …

Light and scanning electron microscopical observations are made on two non–raphid
pennate species from Lake Baikal, Russia. Based on their morphologies, they are assigned …

Light and scanning electron microscope observations are presented for Karthickia
verestigmata gen. et sp. nov. The taxon is described from Laos and Vietnam. This diatom …

ABSTRACT A new diatom species of the genus Placoneis Mereschkowsky is described on
the basis of molecular and morphological data. The new species, Placoneis asymmetricus …