Nordic Lichen Flora. Volume 3. Cyanolichens.

Nordic countries are reknowned as having one of the richest and best known collections of lichen species in the world, with over 2000 species. Several Nordic lichenologists have initiated a project to produce a modern flora, the first since the C19, that will treat the whole lichen flora of the region. This volume is similar in layout to the previous two, but differs in that it doesn’t concentrate on taxonomically related species, but includes all lichens which have cyanobiontic partners. There is no general key but guidance is provided based largely on easily observable characters.
Descriptions of genera (plus keys)and species with notes on the thallus, chemistry, habitat and distribution. Appendices include distribution maps and colour photos.