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Scientific classification edit
(unranked): Viridiplantae
Division: Chlorophyta
Class: Trebouxiophyceae
Order: Trebouxiales
Family: Trebouxiaceae
Genus: Trebouxia

Trebouxia is a genus of unicellular green algae in the family Trebouxiaceae. They are common algal symbionts in lichens, but can also be found free-living.[1]

A yellow-green lichen on tree bark.
Trebouxia algae commonly occur as symbionts in lichens, such as Xanthoria parietina.


  1. ^ Bubrick, P.; Galun, M.; Frensdorff, A. (1984). "Observations on free-living Trebouxia De Puymaly and Pseudotrebouxia Archibald, and evidence that both symbionts from Xanthoria parietina (L.) Th. Fr. can be found free-living in nature". New Phytologist. 97 (3): 455–462. doi:10.1111/j.1469-8137.1984.tb03611.x. ISSN 0028-646X.

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