Lecanora magnussoniana Hafellner & Türk

Syn.: Squamarina magnussonii Frey & Poelt
Lichenised.
Substrate: intermediate rocks (such as calciferous schists)
Altitudinal range: from the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron) 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 species with small, ochraceous yellow, indistinctly rosulate thalli, sessile apothecia with thick thalline margins and brownish discs, and asci of Lecanora-type; on calcareous rocks under overhangs; known from a few scattered localities in the Alps.
Austria: Salzburg; Steiermark; Switzerland: Graubünden;