This is the third edition of the annotated list of lichens and lichen-forming fungi, now also including Finland. It comprises 2844 species and 124 subspecific taxa in 449 genera. Altogether 8394 synonyms are listed. For each species information is given regarding habitat and distribution in Sweden, Norway and Finland, with references to relevant literature.

This is the third edition of the annotated list of lichens and lichen-forming fungi, now also including Finland. It comprises 2844 species and 124 subspecific taxa in 449 genera. Altogether 8394 synonyms are listed. For each species information is given regarding habitat and distribution in Sweden, Norway and Finland, with references to relevant literature.