Psorotichia murorum A. Massal.
Syn.: Collemopsis murorum (A. Massal.) Stizenb.
Lichenised.
Substrate: calciferous rocks
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)
Note: on sunny surfaces of calcareous rocks, mostly below the montane belt.
Austria: Vorarlberg; Tirol; Salzburg; Oberösterreich; Niederösterreich (incl. Wien); Switzerland: Graubünden; Schwyz; Ticino; Valais; France: Haute-Savoie; Var; Italy: Veneto; Trentino Alto Adige; Lombardia; Piemonte; Liguria;