LICHALP

Lecanora eminens Asta, Clauzade & Cl. Roux

Syn.: Lecanora prominens Asta, Clauzade & Cl. Roux non Clauzade & Vězda

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 species related to L. albula with which it often grows together, with a chalky-white thallus consisting of dispersed areoles bordered by a black hypothallus, the apothecia provided with a blue-green disc, a persisting thalline margin reacting Pd+ yellow (psoromic acid), and minute ascospores; on schists poor in calcium carbonate, usually on south-exposed steep faces in the alpine belt; in the study area so far known from a few localities of the Western Alps (France).