Nordic Lichen Flora Vol. 1, Introductory parts, Calicioid lichens and fungi

The lichen flora of the Nordic countries has been regarded as one of the best known in the world, containing about 2000 species. This project will treat the whole lichen flora of the region. The first volume comprises the ecologically important group of Calicoid lichens and fungi. This group contains many environmentally important indicator species, which now hopefully will be easier to recognize.