Oceanoplaca isidiosa

About

Oceanoplaca isidiosa is a species of lichen-forming fungus in the family Teloschistaceae. It forms bright yellow-orange to reddish-orange rosettes on rocks, particularly in coastal areas, and is known from Brazil and the Galápagos Islands. Originally described from granite along the Brazilian seashore in 1890, the species was transferred to the newly established genus Oceanoplaca in 2020 based on DNA studies, where it serves as the type species. The lichen reproduces primarily through small breakaway outgrowths (isidia) and produces the rare pigment isidiosin, which was named after this species.

Summary from Wikipedia