LICHALP

Thelidium minutulum Körb.

Syn.: Arthopyrenia mesotropa (Nyl.) Arnold, Involucrothele margacea (Leight.) Servít, Thelidium aethioboloides (Nyl.) Vain. non Zschacke, Thelidium eitneri Zahlbr., Thelidium hospitum Arnold, Thelidium margaceum (Leight.) Zschacke, Thelidium mesotropum (Nyl.) A.L. Sm., Thelidium terrestre Walt. Watson

Lichenised.

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

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) 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 widespread, cool-temperate to arctic-alpine, circumpolar, pioneer lichen found on calcareous pebbles close to the ground, on roofing tiles and on brick walls, occasionally also in the splash water zone of creeks; probably more widespread in the Alps.