LICHALP

Trapelia obtegens (Th. Fr.) Hertel

Syn.: Biatora coarctata (Sm.) Th. Fr. subsp. obtegens Th. Fr., Biatora coarctata (Sm.) Th. Fr. var. obtegens (Th. Fr.) Th. Fr., Lecidea coarctata (Sm.) Nyl. var. obtegens (Th. Fr.) Th. Fr., Lecidea obtegens (Th. Fr.) Vain.

Lichenised.

Substrate: siliceous 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: on siliceous pebbles near the ground, sometimes on roofing tiles and over thin soil layers, with scattered records from the Eastern Alps only.