Enchylium polycarpon (Hoffm.) Otálora, P.M. Jørg. & Wedin subsp. polycarpon

Syn.: Collema orbiculare (Schaer.) Tonglet, Collema polycarpon Hoffm., Collema stygium Rabenh., Collemodium polycarpoides Nyl., Leptogium polycarpoides (Nyl.) Harm., Lathagrium orbiculare (Schaer.) Arnold, Synechoblastus orbicularis (Schaer.) Dalla Torre & Sarnth., Synechoblastus polycarpus (Hoffm.) Dalla Torre & Sarnth.
Lichenised.
Substrate: calciferous rocks
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) 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 on exposed, hard, calciferous rocks and dolomite; widespread throughout the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Schwaben; Switzerland: Bern; Glarus; Graubünden; Schwyz; Ticino; Uri; Unterwalden; Vaud; Valais; France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Isère; Savoie; Haute-Savoie; Vaucluse; Var; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta; Liguria; Slovenia: Trnovsky Gozd;