Lichens. An illustrated guide to the British and Irish species
This new seventh edition was published in June 2018. It provides a description and illustration of most of the species likely to be found in Great Britain and Ireland, those excluded being very rare or local, and has been fully revised and updated. Mark Powell has added a valuable new section on lichenicolous fungi, and the book uses the new species names accepted since the publication of Lichens of Great Britain & Ireland (2009).
The book is produced jointly by Richmond Publishing and the British Lichen Society, and there is a special offer price for BLS members if the book is ordered from Richmond Press using this form.