LICHALP

Protoblastenia rupestris (Scop.) J. Steiner var. sanguinea (Arnold) Zahlbr.

Syn.: Biatora rupestris (Scop.) Fr. var. sanguinea Arnold, Protoblastenia calva (Dicks.) Zahlbr. var. sanguinea (Arnold) Cl. Roux

Lichenised.

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: a taxon resembling var. rupestris, but with brighter, distinctly red apothecia and a faintly blood-red hypothecium; on shaded, moist rock faces of calcareous boulders; widespread in the Alps, but much rarer than the typical variety.