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 recalling in habitus Immersaria athroocarpa, but perhaps related to A. cupreogrisea, with an areolate, brown to brown-black thallus on a black hypothallus, apothecia (c. 0.5 mm in diam.) immersed in the thallus, usually 1 per areole, with a blackish-brown disc, 8-spored asci, and oblong to ellipsoid ascospores (c. 10 × 4-5 μm); on siliceous rocks in the high-alpine belt, only known from the type locality in the Western Alps (Switzerland).
