Protoblastenia calvella Kainz & Rambold

Lichenised.
Substrate: calciferous rocks
Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)
Note: a species resembling P. calva, but with a distinctly epilithic thallus and smaller apothecia (less than 1 mm in diam.); on shaded calcareous rocks, so far only known from the Eastern Alps (Austria).
Austria: Tirol; Steiermark; Oberösterreich;