Acarospora ramosa (Acarosporaceae), a new effigurate yellow species from South America
Knudsen, Kerry; Flakus, Adam
Acarospora ramosa K. Knudsen & Flakus is described as new to science from the Bolivian Andes. It is characterized by a yellow, epruinose, rugulose thallus with a distinct effigurate margin, punctiform apothecia, and thin, branching and anastomosing paraphyses. The main diagnostic substances the new species produces are rhizocarpic and gyrophoric acids.