Nordic lichen flora. Vol. 2, Physciaceae

Bok av Teuvo Ahti Per Magnus Jørgensen Hördur Kristinsson Roland Moberg Ulrik Søchting Göran Thor
The lichen flora of the Nordic countries has been regarded as one of the best known in the world, containing about 2000 species. The second volume comprising Physciaceae. This group contains many environmentally important indicator species, which now hopefully will be easier to recognize.