Chaenotheca trichialis (Ach.) Th. Fr.

Syn.: Calicium cinereum auct., Calicium elassosporum Nyl., Calicium trichiale Ach., Chaenotheca aeruginosa (Turner ex Sm.) A.L. Sm. non auct., Chaenotheca brunneola (Ach.) Müll. Arg. var. elassospora (Nyl.) A.L. Sm., Chaenotheca elassospora (Nyl.) Zahlbr., Cyphelium trichiale (Ach.) De Not., Phacotium trichiale (Ach.) Trevis.
Lichenised.
Substrate: bark, lignum
Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)
Note: a holarctic species found on acid-barked deciduous trees, conifers and lignum, in forests and woodlands; 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-de-Haute-Provence; Alpes-Maritimes; Isère; Haute-Savoie; Vaucluse; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Slovenia: Alpine and Pre-Alpine Slovenia;