Arctoparmelia centrifuga (L.) Hale

Syn.: Lichen centrifugus L., Parmelia centrifuga (L.) Ach., Xanthoparmelia centrifuga (L.) Hale
Lichenised.
Substrate: siliceous 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: an arctic-alpine species of exposed siliceous rocks; certainly very rare in the Alps. Italian records need confirmation (see Nimis 2016).
Austria: Tirol; Steiermark; ?Niederösterreich (incl. Wien); Italy: ?Veneto; ?Piemonte;