The genera Aniptodera, Halosarpheia, Nais and Phaeonectriella from freshwater habitats

Abstract

The generic concepts in Aniptodera, Halosarpheia, Nais and Phaeonectriella are discussed and those species occurring in freshwater are described, some with illustrations. Five new species: Aniptodera lignicola, A. mauritaniensis, A. megalospora, A. palmicola, Phaeonectriella appendiculata are also described. A key to the freshwater species in the above genera and a synoptic diagram of their ascospores are provided.