Substrate: siliceous rocks, 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 of the L. auriculata-group with a very thick thallus (with the confluentinic acid syndrome), and ascospores broader than in L. auriculata, found on steep faces of siliceous cliffs in the subalpine and alpine belts; in the study area so far known only from the Eastern Alps (Austria).
