Lepraria membranacea (Dicks.) Vain.

Probably the most easily recognisable Lepraria species. Lepraria membranacea has a yellowish, relatively thick, clearly delimited thallus. Acidic siliceous rocks, particularly their vertical and overhanging surfaces, are its typical habitats. Especially in areas where the species is abundant, it may be found also at bases of trees with acidic bark, such as oaks and pines. This cosmopolitan lichen is common in Europe and the Czech Republic, where it occurs across the entire country from lowlands to mountains.

Ascomycota → Lecanoromycetes → Lecanorales → Stereocaulaceae → Lepraria