Caloplaca biatorina (A. Massal.) J. Steiner

Syn.: Berengeria biatorina (A. Massal.) Trevis., Calogaya biatorina (A. Massal.) Arup, Frödén & Søchting, Caloplaca baumgartneri Zahlbr., Caloplaca biatorina (A. Massal.) J. Steiner var. baumgartneri (Zahlbr.) Poelt, Caloplaca biatorina (A. Massal.) J. Steiner var. sympecta J. Steiner, Caloplaca callopiza (Nyl.) Jatta, Gasparrinia biatorina (A. Massal.) Szatala, Lecanora callopiza Nyl., Physcia elegans (Link) De Not. var. biatorina A. Massal., Placodium biatorinum (A. Massal.) M. Choisy, Placodium callopizum (Nyl.) Flagey
Lichenised.
Substrate: calciferous rocks, intermediate rocks (such as calciferous schists)
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 holarctic species found in the mountains of Southern Europe; on limestone and dolomite, more rarely on base-rich siliceous rocks, most often at the top of isolated boulders in open, nitrogen-rich situations, mostly above or near treeline; widespread throughout the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Schwaben; Switzerland: Bern; Graubünden; Luzern; Schwyz; Ticino; Valais; France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Savoie; Haute-Savoie; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta;