Caloplaca magni-filii Poelt

Lichenised.
Substrate:
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 of the C. ferruginea-group with a strongly reduced thallus and small rusty-red apothecia with soon excluded margins; exclusively parasitic on thalli of the silicicolous Miriquidica nigroleprosa, usually from the high montane to the lower alpine belt; widespread in the European parts of the Holarctic, including the Alps, but rare.
Austria: Tirol; Kärnten; Steiermark; Switzerland: Uri; France: Haute-Savoie;