LICHALP

Catillaria chalybeia (Borrer) A. Massal.

Syn.: Biatora deplanatula Müll. Arg., Biatorina baliola (Nyl.) Hellb., Biatorina chalybeia (Borrer) Mudd, Biatorina lenticularis (Ach.) Körb. var. chalybeia (Borrer) Anzi, Biatorina lenticularis (Ach.) Körb. var. chloropoliza (Nyl.) A.L. Sm., Biatorina nubila Norman, Buellia chalybeia (Borrer) Bagl., Catillaria chalybeia (Borrer) A. Massal. var. chloropoliza (Nyl.) H. Kilias, Catillaria chloroscotina (Nyl.) Arnold, Catillaria doliocarpa (Müll. Arg.) Arnold, Catillaria lenticularis (Ach.) Th. Fr. var. nubila (Norman) Arnold, Catillaria lenticularis (Ach.) Th. Fr. var. vulgaris (Körb.) Th. Fr., Catillaria nigroclavata (Nyl.) J. Steiner var. baliola (Nyl.) Zahlbr., Lecidea baliola Nyl., Lecidea chalybeia Borrer, Lecidea deplanatula (Müll. Arg.) Müll. Arg., Lecidea spodoplaca Nyl., Microlecia chalybeia (Borrer) M. Choisy, Patellaria doliocarpa Müll. Arg.

Lichenised.

Substrate: siliceous 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 holarctic, subtropical to arctic, facultatively lichenised species found on a wide range of siliceous substrata, including roofing tiles, brick, and even gypsum, in sheltered situations and on periodically inundated rocks, common both in natural and urban areas, especially on walls, and widespread throughout the Alps.