Mesostigmatophyceae

The Mesostigmatophyceae are a class of basal green algae found in freshwater. In a narrow circumscription, the class contains a single genus, Mesostigma. AlgaeBase then places the order within its circumscription of Charophyta. A clade containing Chlorokybus and Spirotaenia may either be added, or treated as a sister, with Chlorokybus placed in a separate class, Chlorokybophyceae. When broadly circumscribed, Mesostigmatophyceae may be placed as sister to all other green algae, or as sister to all Streptophyta.

Mesostigmatophyceae
Scientific classification
(unranked): Viridiplantae
(unranked): Charophyta
Class: Mesostigmatophyceae
Marin & Melkonian,1999
Type species
Mesostigma viride Lauterborn
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