Rhizocarpon eupetraeum (Nyl.) Arnold

Syn.: Lecidea eupetraea Nyl., Lecidea parapetraea Nyl., Lecidea petraeiza Nyl., Rhizocarpon arcticum Räsänen, Rhizocarpon dissentiens Arnold, Rhizocarpon parapetraeum (Nyl.) Zahlbr.; incl. Rhizocarpon petraeizum (Nyl.) Arnold
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 nival belt (above the lower limit of perennial snow and glaciers)
Note: on inclined to vertical faces of acidic siliceous rocks, mostly sandstone, with a wide altitudinal range.
Austria: ?Vorarlberg; Tirol; Kärnten; Steiermark; Niederösterreich (incl. Wien); Switzerland: Graubünden; Valais; Italy: Veneto; Trentino Alto Adige; Piemonte; Valle d'Aosta;