Acarospora peliscypha Th. Fr.

Lichenised.
Substrate: siliceous rocks, metal-rich 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 to boreal-montane, probably circumpolar species found on siliceous, often iron-rich substrata, on exposed birds' perching rocks (e.g. windy ridges, isolated boulders). See also notes on A. bullata and A. rugulosa.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Niederösterreich (incl. Wien); Switzerland: Graubünden; Uri; France: Haute-Alpes; Haute-Savoie; Italy: Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta;