Buellia schaereri De Not.

Syn.: Buellia destructans (Tobler) R. Sant., Buellia nigritula (Nyl.) Mudd, Karschia destructans Tobler, Lecidea nigritula Nyl.
Lichenised.
Substrate: bark, lignum
Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)
Note: a mainly cool-temperate to boreal-montane, circumpolar species found on acid bark, especially of conifers, and on wooden poles in upland areas; widespread throughout the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Schwaben; Switzerland: Bern; Glarus; Graubünden; Luzern; St. Gallen; Schwyz; Ticino; Uri; Unterwalden; Vaud; Valais; France: Alpes-Maritimes; Haute-Savoie; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Liguria; Slovenia: Alpine and Pre-Alpine Slovenia;