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 a thin, rusty red thallus, immersed perithecia with a black ostiolar region, and narrowly ellipsoid, 1-septate ascospores which are less than 20 µm long; on gneiss in the subalpine to lower alpine belts; only recorded from the Western Alps (Switzerland).
