Lepra schaereri (Hafellner) Hafellner
Syn.: Pertusaria isidioides (Schaer.) Arnold non (Borrer) Hook. f., Pertusaria schaereri Hafellner
Lichenised.
Substrate: siliceous rocks
Altitudinal range: from the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron) to the nival belt (above the lower limit of perennial snow and glaciers)
Note: on base- or mineral-rich rocks in rainy areas near and above treeline, up to the nival belt.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Switzerland: Bern; Graubünden; Valais; France: Haute-Alpes; Haute-Savoie; Italy: Friuli; Trentino Alto Adige; Valle d'Aosta;