Parmelia squarrosa Hale

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 alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)
Note: this species, which is fairly common in North America and in Japan, also occurs, albeit very rarely, in the Alps.
Austria: Salzburg; Switzerland: Graubünden; Valais; Italy: Friuli;