Lecanora cavicola Creveld
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: a species found on acid siliceous rocks near or above treeline; perhaps more widespread, but not common in the Alps, where it reaches the nival belt.
Austria: Tirol; Salzburg; Kärnten; Steiermark; Italy: Piemonte;