Altitudinal distribution: 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 an endolithic thallus, black, protruding ascomata (to 0.4 mm in diam.) without an involucrellum, and broadly ellipsoid to subglobose ascospores (to c. 30 µm long); on limestone, only known from the type locality in the Eastern Alps (Austria).
