LICHALP

Lathagrium cristatum (L.) Otálora, P.M. Jørg. & Wedin var. marginale (Huds.) ined. (provisionally placed here, ICN Art. 36.1b)

Syn.: Collema cristatum (L.) Weber ex F.H. Wigg. var. marginale (Huds.) Degel., Collema marginale (Huds.) Hoffm., Collema multifidum (Scop.) Rabenh., Lichen marginalis Huds., Lichen multifidus Scop.

Lichenised. Poorly known taxon.

Substrate: calciferous rocks

Altitudinal range: from the montane belt (potential vegetation: deciduous forests dominated by Fagus sylvatica and closed coniferous forests with Picea abies) 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 morph with adnate, distinctly and repeatedly furcate lobes that are more or less linear and concave, mostly fertile, but occasionally isidiate (isidia globular to clavate); on limestone boulders and outcrops from mid- to high elevations; widespread in the Northern Hemisphere, but real distribution in the Alps difficult to evaluate, because it was not always distinguished from the typical variety.