Biatora helvola Körb. ex Hellb.

Biatora helvola Körb. ex Hellb.

Syn.: Lecidea helvola (Körb. ex Hellb.) Hedl., Lecidea vernalis (L.) Ach. subsp. helvola (Körb. ex Hellb.) Th. Fr.

Lichenised.

Substrate: bark, lignum

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 mainly boreal-montane, circumpolar species found on basal parts of trees in open forests, often with Parmeliopsis hyperopta; widespread, to be looked for further in the Western Alps.

Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Schwaben; Switzerland: Bern; Schwyz; Uri; Unterwalden; Vaud; Valais; Italy: Friuli; Veneto; Trentino Alto Adige; Slovenia: Alpine and Pre-Alpine Slovenia; Trnovsky Gozd;

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