Lepraria rigidula (B. de Lesd.) Tønsberg

Syn.: Crocynia rigidula B. de Lesd.
Lichenised.
Substrate: bark, living mosses, siliceous rocks, lignum,
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) 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: an ecologically wide-ranging species, certainly widespread and locally common, also in the Alps. It seems to prefer acidic substrata and is mainly epiphytic.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Germany: Oberbayern; Schwaben; Switzerland: Appenzell; Bern; Fribourg; Glarus; Graubünden; Luzern; St. Gallen; Schwyz; Ticino; Uri; Unterwalden; Vaud; Valais; France: Alpes-Maritimes; Italy: Friuli; Trentino Alto Adige; Lombardia; Piemonte; Liguria; Slovenia: Alpine and Pre-Alpine Slovenia; Trnovsky Gozd;