Haplotaenium is a genus of green algae, specifically of the Desmidiaceae. Species are widespread in acidic, oligotrophic freshwaters. Haplotaenium consists...

of the semicell, near the isthmus. The genus Haplotaenium was split off from Pleurotaenium; Haplotaenium has a single, axile chloroplast and lacks terminal...

Croasdalea Cruciangulum Desmidium Docidium Euastridium Euastrum Groenbladia Haplotaenium Heimansia Hyalotheca Ichthyocercus Ichthyodontum Mateola Micrasterias...

Euastrum Ehrenberg ex Ralfs – 358 species Groenbladia Teiling – 6 species Haplotaenium Bando – 4 species Heimansia Coesel – 2 species Hyalotheca Ehrenberg ex...

reproduction is unknown. The genus is very similar to Pleurotaenium and Haplotaenium, from which it differs in having a row of teeth at the base of the semicells...