Fottea

Three new freshwater species of the genus Achnanthidium (Bacillariophyta, Achnanthidiaceae) from Taiping Lake, China

Lagosinema tenuis gen. et sp. nov. (Prochlorotrichaceae, Cyanobacteria): a new brackish water genus from Tropical Africa

Nitzschia omanensis sp. nov., a new diatom species from the marine coast of Oman, characterized by valve morphology and molecular data

Revision of the Psammothidium manguinii complex (Bacillariophyta) in the sub-Antarctic Region with the description of four new taxa

Surirella wulingensis sp. nov. and fine structure of S . tientsinensis Skvortzov (Bacillariophyceae) from China

Phylogeny and characterization of Paraeustigmatos columelliferus, gen. et sp. nov., a member of the Eustigmatophyceae that may represent a basal group within the Eustigmatales

Three new subaerial Achnanthidium (Bacillariophyta) species from a karst landform in the Guizhou Province, China

First record of the rare freshwater alga Tetrasporopsis fuscescens (Chrysomerophyceae, Ochrophyta) in North America

Taxonomic transfer of Gongrosira fluminensis Fritsch (Chaetophorales, Chlorophyceae) to Lithotrichon Darienko et Pröschold (Ulvales, Ulvophyceae) based on morphological observation and phylogenetic analyses

Mallomonas minuscula sp. nov. (Synurales, Chrysophyceae), a new member in the section Torquatae from Vietnam