Altitudinal distribution: subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)
Note: a species resembling in habitus a small-fruiting form of L. paratropoides, with a kryptothalline thallus, black, sessile, distinctly marginate apothecia in irregular dense groups, a red-brown hypothecium, 8-spored asci, and minute, ellipsoid ascospores (6-8 × 4-6 μm); on siliceous rocks (e.g. granite) at high elevations; only known from the type locality in the Western Alps (Switzerland).
