LICHALP

Lecidea fissuriseda Poelt

Syn.: Mycobilimbia fissuriseda (Poelt) Poelt & Hafellner

Lichenised.

Substrate: calciferous rocks, intermediate rocks (such as calciferous schists)

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 probably circumpolar, arctic-alpine lichen found in thin fissures of calciferous rocks (calcareous schist, dolomite, much more rarely pure limestone) near and especially above treeline; certainly more widespread in the Alps. It does not belong in Lecidea s.str. nor in Mycobilimbia, being related to Clauzadea in the Porpidiaceae.