LICHALP

Ionaspis obtecta (Vain.) R. Sant.

Syn.: Aspicilia obtecta (Vain.) Hav., Hymenelia obtecta (Vain.) Poelt & Vězda, Lecanora obtecta Vain.

Lichenised.

Substrate: siliceous rocks, , metal-rich siliceous 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 species recalling I. lacustris, but with a rimose, ochraceous-brownish thallus, an amyloid medulla, and immersed, but somewhat protruding apothecia with blackish-brown margins; on exposed siliceous, occasionally metal-rich rocks; widespread in Europe but altogether rare, with a few scattered records from the Alps.