Cymbopleura laszlorum spec. nov. (Cymbellaceae, Bacillariophyceae), a glacial relic from a calcium-rich floodplain fen in southwestern Montana, USA

Systematics of araphid diatoms with asymmetric rimoportulae or densely packed virgae, with particular attention to Hyalosynedra (Ulnariaceae, Bacillariophyta)

New species and a new genus of the Orthoseirales from Patagonia, Argentina, with comments on systematic affinities within the Order

Oricymba rhynchocephala sp. nov., a new cymbelloid diatom (Bacillariophyceae) from Xianju National Park in Zhejiang Province, China

Morphological and taxonomical analysis of the terrestrial diatom genus Humidophila (Bacillariophyta) on Ile Amsterdam and Ile Saint-Paul (Southern Indian Ocean)

Cyclotella deceusteriana, a new centric diatom species (Bacillariophyta) from the sub-Antarctic Region

A diatom voucher flora from selected southeast rivers (USA)

Ferocia gen. nov., a new centric diatom genus (Bacillariophyceae) from the sub-Antarctic region

Ulnaria verhaegeniana, a new diatom (Bacillariophyta) species from Belgium

The planktonic diatom genus Chaetoceros Ehrenberg (Bacillariophyta) from the Adriatic Sea