Altitudinal distribution: subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)
Note: a species with a thin, whitish to brown thallus and minute, lecideine apothecia with often umbonate discs, prominent, radially incised margins, and simple, broadly ellipsoid (to 30 µm long) ascospores turning brown with age; on siliceous rocks in irrigated places or other damp situations; widespread in the Holarctic region, in Europe most common in the west and more or less restricted to the montane belt; from the Alps there is only a single record (Switzerland).
