Polyblastia plicata (A. Massal.) Lönnr.

Syn.: Verrucaria plicata A. Massal.; incl. Polyblastia singularis (Kremp.) Arnold
Lichenised.
Substrate: calciferous rocks
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: on compact limestone and dolomite in shaded and humid situations, mostly in upland areas.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Switzerland: Graubünden; Schwyz; Uri; France: Alpes-de-Haute-Provence; Haute-Alpes; Savoie; Italy: Veneto; Trentino Alto Adige; Piemonte;