Biatora vernalis (L.) Fr.

Syn.: Bacidia vernalis (L.) Clauzade & Rondon, Biatora sphaeroides (Dicks.) Hornem. var. vernalis (L.) Rabenh., Bilimbia vernalis (L.) Trevis., Lecidea vernalis (L.) Ach., Lichen vernalis L., Patellaria vernalis (L.) Spreng., Pyrrhospora vernalis (L.) M. Choisy, Secoliga vernalis (L.) Norman
Lichenised.
Substrate: bark, living mosses, plant debris, acidic soil (mostly on siliceous substrata)
Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)
Note: a mostly boreal-montane, circumpolar species, ranging from Northern Scandinavia to the Alps, the Pyrenees and the Balkan mountains, becoming progressively rarer southwards, found on bryophytes, plant debris, soil and bark. Several records could refer to B. subduplex; widespread throughout the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Niederösterreich (incl. Wien); Germany: Oberbayern; Schwaben; Switzerland: Bern; Graubünden; ?Schwyz; Vaud; Valais; France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Isère; Savoie; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta; Slovenia: Alpine and Pre-Alpine Slovenia; Trnovsky Gozd;