Frutidella caesioatra (Schaer.) Kalb
Syn.: Lecidea arctica Sommerf., Lecidea caesioatra Schaer., Lecidella arctica (Sommerf.) Körb., Lecidella caesioatra (Schaer.) Kalb
Lichenised.
Substrate: siliceous rocks, acidic soil (mostly on siliceous substrata),
Altitudinal range: from the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron) to the nival belt (above the lower limit of perennial snow and glaciers)
Note: an arctic-alpine lichen found on silicicolous mosses, especially Andreaea and Grimmia, in places with a long snow cover, more rarely directly on rock.
Austria: Vorarlberg; Tirol; Salzburg; Kärnten; Steiermark; Switzerland: Bern; Graubünden; Uri; France: Haute-Savoie; Italy: Veneto; Trentino Alto Adige; Lombardia; Piemonte; Valle d'Aosta;