Placidium lachneum (Ach.) B. de Lesd. var. lachneum

Syn.: Catapyrenium lachneum (Ach.) R. Sant., Dermatocarpon lachneum (Ach.) A.L. Sm., Endopyrenium lachneum (Ach.) Hav., Lichen lachneus Ach.
Lichenised.
Substrate: calciferous soil, acidic soil (mostly on siliceous substrata), calciferous rocks
Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the nival belt (above the lower limit of perennial snow and glaciers)
Note: a mainly boreal-montane to arctic-alpine, circumpolar lichen found on terricolous bryophytes and on more or less organic calciferous soil in upland areas; widespread throughout the Alps.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Oberösterreich; Niederösterreich (incl. Wien); Germany: Oberbayern; Switzerland: Bern; Graubünden; Luzern; Schwyz; Valais; France: Alpes-de-Haute-Provence; Haute-Alpes; Alpes-Maritimes; Isère; Savoie; Haute-Savoie; Italy: Friuli; Veneto; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta; Slovenia: Alpine and Pre-Alpine Slovenia;