Micarea lignaria (Ach.) Hedl.

A sparsely distributed species, locally common especially in mountain areas. Alike other genus members, M. lignaria has a relatively wide ecological amplitude. The latin species name is a bit confusing as its occurrence on wood is (at least in condition of the Czech Republic) is considerably less frequent than on rock substrates, where it overgrows dying bryophytes and hummus. The lichen is abundant especially in humid rocky habitats usually in the vicinity of watercourses and in glacial cirques in mountain areas. At lower elevations, it may be found in inverse parts of sandstone areas and in humid boulder screes, for example in the company of the related M. leprosula.

Ascomycota → Lecanoromycetes → Lecanorales → Pilocarpaceae → Micarea