LICHALP

Pseudosagedia guentheri (Flot.) Hafellner & Kalb

Syn.: Porina guentheri (Flot.) Zahlbr., Porina koerberi (Flot.) Lettau, Trichothelium guentheri (Flot.) R.C. Harris, Verrucaria guentheri Flot.

Lichenised.

Substrate: siliceous rocks,

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 cool-temperate to subarctic lichen found along mountain creeks in the montane and subalpine belts, on periodically inundated siliceous rocks, but also on very shaded, not inundated rocks near the ground; probably more widespread in the Alps.