Mycobilimbia tetramera (De Not.) Vitik., Ahti, Kuusinen, Lommi & T. Ulvinen ex Hafellner & Türk

Syn.: Bacidia fusca (A. Massal.) Du Rietz, Bacidia indurata Zahlbr., Bacidia obscurata (Sommerf.) Zahlbr., Bacidia tetramera (De Not.) Coppins, Biatora tetramera (De Not.) Coppins, Bilimbia fusca A. Massal., Bilimbia obscurata (Sommerf.) Th. Fr., Bilimbia tetramera De Not., Bilimbia triplicans (Nyl.) Elenkin, Lecidea triplicans (Nyl.) Nyl., Mycobilimbia fusca (A. Massal.) Hafellner & V. Wirth, Mycobilimbia obscurata (Sommerf.) Rehm
Lichenised.
Substrate: living mosses, plant debris, bark,
Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) 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: on mosses and plant debris on calcareous substrata, sometimes on bark, especially on basal parts of old trunks in open forests, and on other lichens (e.g. Peltigera); widespread throughout the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Switzerland: Bern; 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: Alpine and Pre-Alpine Slovenia;