Chalmasia is a genus of green algae in the family Polyphysaceae.

[2] The genus name of Chalmasia is in honour of Ernest Charles Philippe Auguste Munier-Chalmas (1843–1903), who was a French geologist.

[3] The genus was circumscribed by Hermann zu Solms-Laubach in Trans.

London, Bot.

This Ulvophyceae-related article is a stub.