Lichens on German Web
Science, Biology, Mycology, Lichens - Lichens.de. Photos of lichens taken during British Lichen Society field trips in Britain.
http://www.lichens.de
Lichens
Lichens of North America
Science, Biology, Mycology, Lichens - Lichens of North America. Information about lichen biology, lichens and wildlife, lichens and people, and the book of the same title, which was published in 2001.
https://www.lichen.com/