Epilichen scabrosus (Ach.) Clem.

Syn.: Buellia scabrosa (Ach.) A. Massal., Karschia scabrosa (Ach.) Rehm, Lecidea scabrosa Ach., Skolekites scabrosus (Ach.) Norman
Lichenised.
Substrate: acidic soil (mostly on siliceous substrata),
Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)
Note: optimum in cold-humid situations in upland areas, at first a parasite on Baeomyces-species, becoming autotrophic when old; widespread throughout the siliceous Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Niederösterreich (incl. Wien); Germany: Schwaben; Switzerland: Bern; Graubünden; Ticino; Uri; Vaud; Valais; France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Haute-Savoie; Vaucluse; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta;