Protothelenella croceae (Bagl. & Carestia) Hafellner & H. Mayrhofer

Syn.: Pleospora croceae (Bagl. & Carestia) Vouaux, Xenosphaeria croceae Bagl. & Carestia
Non- or doubtfully 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: an arctic-alpine lichenicolous fungus found on old, dying thalli of Solorina crocea and Peltigera-species, with optimum above treeline; certainly more widespread in the Alps, but probably overlooked.
Austria: Tirol; Kärnten; Steiermark; Switzerland: Graubünden; Italy: Friuli; Piemonte;