Trebouxia flava

Trebouxia flava is a species of green alga in the family Trebouxiaceae. First described in 1975 by Patricia Ann Archibald, it features spherical cells containing multiple nuclei and a single chloroplast with a small pyrenoid. The species is characterized by its distinctive dull-shiny, sulphurous yellow cultures, which differ from the typical shiny yellow-green appearance of most other Trebouxia species. It can reproduce both through motile zoospores and non-motile aplanospores, and was originally isolated from the foliose lichen species Physconia pulverulenta.