Dermatocarpon arnoldianum Degel.

Lichenised. Poorly known taxon.
Substrate:
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: a rather poorly understood, but characteristic, perhaps holarctic species found on calciferous or base-rich siliceous rocks in periodically wet places, or near the ground.
Austria: Tirol; Salzburg; Kärnten; Steiermark; Switzerland: Bern; Graubünden; Uri; Valais; Italy: Friuli; Veneto; Lombardia; Piemonte;