Altitudinal distribution: subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)
Note: a species resembling M. elachista, but thallus endoxylic, with black, hemispherical to tuberculate apothecia, a brown epihymenium not reacting with K or N, a pale hypothecium, mostly simple, ellipsoid to oblong ascospores, and black pycnidia with an olivaceous wall reacting K+ violet, containing micro- or mesoconidia; on wood of conifers in boreal-temperate-montane/subalpine areas, with a single record from the Eastern Alps (Austria).
