LICHALP

Poeltinula cacuminum Cl. Roux

Syn.: Encephalographa cerebrina (DC.) A. Massal. subsp. cacuminum Asta, Clauzade & Cl. Roux [invalidly published, ICN Art. 40.1 + 8], Poeltinula cacuminum (Asta, Clauzade & Cl. Roux) Clauzade & Cl. Roux comb. inval.

Lichenised.

Substrate: calciferous rocks

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: on hard calciferous and dolomitic rocks in exposed, but not sunny situations, with optimum above treeline; much overlooked, probably more widespread in the Alps.