Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)
Note: a silicicolous species with a very thin, whitish grey, continuous thallus reacting K-, delimited by a black prothallus, forming patches of 2-3 cm in diam., numerous black apothecia (c. 0.2 mm in diam.), first immersed in the thallus, then sessile, the disc first concave, then persistently plane, with a thin proper margin, epithecium brown, hymenium colourless, amyloid, hypothecium pale brown, paraphyses coherent, 8-spored asci, and 1-septate, not constricted, brown ascospores measuring 18-20 × 12-13(-15) µm; only known from the type collection at 1,500 m, and probably belonging to Diplotomma.
