Chaenotheca stemonea (Ach.) Müll. Arg.

Syn.: Calicium physarellum Ach., Calicium stemoneum (Ach.) Ach., Calicium trichiale Ach. var. stemoneum Ach., Chaenotheca aeruginosa auct. non (Turner ex Sm.) A.L. Sm., Cyphelium stemoneum (Ach.) De Not., Phacotium physarellum (Ach.) Trevis.
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 cool-temperate to boreal-montane, circumpolar lichen found in rain-protected hollows of conifer trunks inside forests, especially near the ground, both on bark and on lignum, sometimes on acid-barked deciduous trees, e.g. Betula, Quercus; widespread throughout the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Burgenland; Germany: Oberbayern; Schwaben; Switzerland: Bern; Glarus; Graubünden; Luzern; St. Gallen; Schwyz; Ticino; Uri; Unterwalden; Valais; France: Alpes-Maritimes; Haute-Savoie; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Liguria; Slovenia: Trnovsky Gozd;