Rhizocarpon ferax H. Magn.

Lichenised.
Substrate:
Altitudinal range: from the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron) 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: a silicicolous species starting the life-cycle on other crustose lichens; probably more widespread in the Alps.
Austria: Vorarlberg; Salzburg; Kärnten; Italy: Trentino Alto Adige;