Air Pollution, Lichens and Mosses: Brief article.
Arizona State University Lichen Herbarium: Information about the collection, the Sonoran Desert Lichen Flora Project, research, and online course material.
British Lichen Society: Advance interest in all branches of lichenology. Includes comprehensive information on British lichens.
Churchyard Lichens: General information.
Dutch Lichens: Photos and information about lichen biology. In Dutch and English.
Endangered Lichens: List of species protected by law in different countries.
European Species of the Lecanoraceae Family: Information on monograph.
Information about Lichens: Description, structure, and environmental importance.
Introduction to Lichens: Information about lichens including fossil record, life history, ecology, morphology and systematics.
Invasion of Pollution-tolerant Lichens: Research on the distribution of four pollution-tolerant non-native lichens in the Pacific Northwest.
Lichen Biology: Introduction to lichens, which are stable, self-supporting associations between fungi (most commonly Ascomycota) and photobionts (algae or cyanobacteria). Intended for university students.
Lichen Research Program, University of Maine at Fort Kent: Information about Steve Selva's research program in lichenology. Includes a photo gallery of stubble lichens under the microscope.
LichenLand: General information for young students including synoptic key and photos.
Lichenology in the Netherlands: Red list including lichenicolous fungi, and additional information about projects and publications.
Lichens - Silent Witnesses of Air Quality: Information on monitoring air quality, bibliography, and photos.
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.
Lichens.de: Photos of lichens taken during British Lichen Society field trips in Britain. Contains general information and related links.
New Zealand Forest Lichens: Photographs, general information, identification and related links.
North American Lichen Checklist: List of cumulative updates to the most recently published North American checklist by Esslinger and Egan (1995).
Queensland Lichens: General information on subtropical lichens from Queensland, Australia. Includes keys to genera and species, and glossary.
Rhode Island's Foliose and Fruticose Lichens: Habitat notes, distribution maps, and color photographs of over 90 species of macrolichens by Don Flenniken.
Roccella: Lichen genus found in Venezuela.
Taxonomy of Philippine Lichens: Brief information and links by researcher Isidro T. Savillo.