Two new Navicula species (Bacillariophyceae) from Western Europe

Chara nikolskae, a new name for Chara elliptica Nikolskaja (1984) non Fritzsche (1924) and Aclistochara elliptica (Fritzsche) comb. nov. (Characeae)

A type study and emended description of Haslea wawrikae (Bacillariophyta)

Achnanthidium petuniabuktianum sp. nov. (Achnanthidiaceae, Bacillariophyta), a new representative of the A. pyrenaicum group from Spitsbergen (Svalbard Archipelago, High Arctic)

Fallacia decussata, sp. nov. : a new marine benthic diatom (Bacillariophyceae) from Northeast Asia

Gyrosigma xiamenense sp. nov. (Bacillariophyta) from the middle intertidal zone, Xiamen Bay, southern China

Type analysis of Cymbella schubartii and two new Encyonopsis species (Bacillariophyceae) from southeastern Brazil

Mallomonas cattiensis, sp. nov. (Synurales, Chrysophyceae), a new species from Viet Nam

Morphological diversity of benthic Nostocales (Cyanoprokaryota/Cyanobacteria) from the tropical rocky shores of Huatulco region, Oaxaca, México

Parviphycus bompardii sp. nov. and P. albertanoae (Gelidiales, Rhodophyta), two species misidentified as Gelidiella ramellosa in the Mediterranean Sea