LICHALP

Enchylium bachmanianum (Fink) Otálora, P.M. Jørg. & Wedin var. millegranum (Degel.) ined. (provisionally placed here, ICN Art. 36.1b)

Syn.: Collema bachmanianum (Fink) Degel. var. millegranum Degel.

Lichenised.

Substrate: acidic soil (mostly on siliceous substrata), calciferous soil

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: this variety differs from the typical on in the presence of granuliform isidia on both thallus and apothecial margins; when sterile, it is difficult to distinguish from the equally terricolous E. tenax var. vulgare, as well as from the usually calcicolous Lathagrium fuscovirens; the distribution is arctic-alpine, the species being extremely rare in the Central European mountains, with a few records from the Alps. The specimen from Tyrol has been revised as belonging to var. millegranum; the exsiccata on which the record from Italy (Lombardia) is based has been revised by Degelius as +/- var. millegranum. The presence of the typical variety in the Alps is therefore dubious.