LICHALP

Rhizocarpon distinctum Th. Fr.

Syn.: Lecidea distincta (Th. Fr.) Stizenb., Lecidea illota Sandst., Lecidea porphyrostrota Vain., Rhizocarpon ambiguum (Schaer.) Zahlbr., Rhizocarpon atroalbum sensu Arnold non (Nyl.) Zahlbr., Rhizocarpon hyalescens Vain., Rhizocarpon illotum (Sandst.) Lettau, Rhizocarpon porphyrostrotum (Vain.) Vain.

Lichenised.

Substrate: siliceous rocks

Altitudinal range: from the submediterranean/colline belt (potential vegetation: mixed deciduous forests dominated by Quercus and Carpinus) to the nival belt (above the lower limit of perennial snow and glaciers)

Note: on basic siliceous rocks, often on brick and roofing tiles, with a wide altitudinal range; sometimes parasitic, when young, on Aspicilia caesiocinerea.