LICHALP

Scytinium tenuissimum (Dicks.) Otálora, P.M. Jørg. & Wedin

Syn.: Collema tenuissimum (Dicks.) Hoffm., Leptogium humosum Nyl., Leptogium spongiosum (Sm.) Nyl., Leptogium tenuissimum (Dicks.) Körb., Lichen tenuissimus Dicks., Polychidium tenuissimum (Dicks.) Trevis.

Lichenised.

Substrate: living mosses, calciferous soil, , bark

Altitudinal range: from the mesomediterranean belt (potential vegetation: evergreen broad-leaved forests dominated by Quercus ilex) 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: on base-rich soil, but also on bark, in the basal parts of old trunks, rarely on base-rich rocks; widespread throughout the Alps.