LICHALP

Placidiopsis tiroliensis Breuss

Lichenised.

Substrate: calciferous soil

Altitudinal range: from the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron) to the 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 resembling P. cinerascens, but with brown rhizohyphae, distinguished from the ecologically similar and much more common P. pseudocinerea by the broadly ellipsoid to subspherical ascospores; in crevices of calcareous rocks; so far there are only a few records from the Alps.