LICHALP

Heteroplacidium compactum (A. Massal.) Gueidan & Cl. Roux

Syn.: Catapyrenium compactum (A. Massal.) R. Sant., Dermatocarpon compactum (A. Massal.) Blomb. & Forssell, Dermatocarpon crassulum (Müll. Arg.) Zahlbr., Endopyrenium crassulum Müll. Arg., Placidium compactum A. Massal., Rhodocarpon compactum (A. Massal.) Lönnr., Verrucaria compacta (A. Massal.) Jatta

Lichenised.

Substrate: calciferous rocks, siliceous rocks

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 more or less calcareous rocks, sometimes on other crustose lichens, but not parasitic, usually in upland areas but below treeline. This name probably includes several taxa related to H. fusculum, whose taxonomic status is in need of clarification.