Protoblastenia siebenhaariana (Körb.) J. Steiner var. alpina (Arnold) Clauzade & Cl. Roux

Syn.: Biatora rupestris (Scop.) Fr. var. alpina Arnold
Lichenised. Poorly known taxon.
Substrate: calciferous rocks
Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) to the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron)
Note: doubtfully different from var. siebenhaariana (the protologue specifies characters distinguishing it from P. rupestris, but not from P. siebenhaariana!), so that the application of the name was inconsistent and the distributional data are hardly reliable.
Austria: Salzburg; Germany: Oberbayern; Italy: Trentino Alto Adige;