LICHALP

Toninia physaroides (Opiz) Zahlbr.

Syn.: Bacillina antipolitana Nyl., Biatorina lurida (Bagl. ex Arnold) Jatta, Lecidea physaroides Opiz, Thalloidima luridum Bagl. ex Arnold, Toninia alluviicola M. Choisy, Toninia lurida (Bagl. ex Arnold) H. Olivier

Lichenised.

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

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: a mainly temperate species, most common on soil developing from calciferous sandstone, often amongst mosses and associated to cyanobacterial lichens when young, rare in limestone areas.