Peltigera kristinssonii Vitik.

Syn.: Peltigera occidentalis sensu Kristinsson
Lichenised.
Substrate: acidic soil (mostly on siliceous substrata), living mosses
Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)
Note: a slightly calciphilous species; probably more widespread in the Alps, with optimum near or above treeline.
Austria: Tirol; Salzburg; Kärnten; Steiermark; Germany: Oberbayern; Switzerland: Schwyz; Uri; Valais; France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Haute-Savoie; Italy: Lombardia; Piemonte; Valle d'Aosta;