Catillaria erysiboides (Nyl.) Th. Fr.

Syn.: Biatorina erysiboides (Nyl.) Arnold, Lecidea erysiboides Nyl.
Lichenised.
Substrate: lignum, bark
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: on hard lignum, e.g. on horizontal faces of old stumps; widespread but not common in the Alps.
Austria: Salzburg; Kärnten; Niederösterreich (incl. Wien); Switzerland: Graubünden; France: Var; Italy: Friuli; Veneto; Trentino Alto Adige;