Bacidia circumspecta (Nyl. ex Vain.) Malme
Syn.: Bacidia bacillifera (Nyl.) Arnold p.p., Bacidia quercicola (Nyl.) Vain., Lecidea bacillifera Nyl. var. circumspecta Nyl. ex Vain., Lecidea circumspecta (Vain.) Hedl.
Lichenised.
Substrate: bark
Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies)
Note: a mild-temperate lichen found on old trees in open, humid woodlands, more rarely on primarily acid, but nutrient-enriched bark.
Austria: Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Switzerland: Bern; Graubünden; Luzern; Schwyz; Unterwalden; Valais; France: Alpes-de-Haute-Provence; Alpes-Maritimes; Isère; Var; Italy: Trentino Alto Adige; Lombardia; Piemonte;