LICHALP

Tetramelas concinnus (Th. Fr.) Giralt

Syn.: Buellia concinna Th. Fr., Buellia nodulosa (Lynge) H. Magn., Buellia subconcinna (Vain.) Zahlbr., Buellia subviridescens (Nyl. ex Th. Fr.) Vain., Lecidea perlutescens Nyl. ex Th. Fr., Lecidea subconcinna Vain.

Lichenised.

Substrate: siliceous rocks, intermediate rocks (such as calciferous schists)

Altitudinal range: from the subalpine belt (potential vegetation: open, taiga-like forests dominated by Larix decidua and/or Pinus cembra and Rhododendron) to the alpine belt (potential vegetation: treeless Alpine grasslands and tundras, to the lower limit of perennial snow and the equilibrium line of glaciers)

Note: a cool-temperate to boreal-montane, circumpolar species found on steeply inclined surfaces of hard siliceous rocks, starting the life-cycle on other crustose lichens; from the Alps there are only a few scattered records.