Air Pollution, Lichens and Mosses
Brief article.

Churchyard Lichens Fact Sheet
Provides answers to common questions with a list of other sources of information.

European Species of the Lecanoraceae Family
Information on monograph.

Introduction to Lichens
Information about lichens - their fossil record, life history, ecology, morphology and systematics.

Churchyard Lichens
General information.

Endangered Lichens
List of species protected by law in different countries.

Roccella
Lichen genus found in Venezuela.

Information about Lichens
Description, structure, and environmental importance.

Dutch Lichens
Photos and information about lichen biology. In Dutch and English.

New Zealand Forest Lichens
Photographs, general information, identification and related links.

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.

British Lichen Society
Advance interest in all branches of lichenology. Includes comprehensive information on British lichens.

Taxonomy of Philippine Lichens
Brief information and links by researcher Isidro T. Savillo.

Lichenology in the Netherlands
Red list including lichenicolous fungi, and additional information about projects and publications.

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.

North American Lichen Checklist
List of cumulative updates to the most recently published North American checklist by Esslinger and Egan (1995).

LichenLand
General information for young students including synoptic key and photos.

Arizona State University Lichen Herbarium
Information about the collection, the Sonoran Desert Lichen Flora Project, research, and online course material.

Invasion of Pollution-tolerant Lichens
Research on the distribution of four pollution-tolerant non-native lichens in the Pacific Northwest.

Lichens.de
Photos of lichens taken during British Lichen Society field trips in Britain. Contains general information and related links.

Lichens - Silent Witnesses of Air Quality
Information on monitoring air quality, bibliography, and photos.

Rhode Island's Foliose and Fruticose Lichens
Habitat notes, distribution maps, and color photographs of over 90 species of macrolichens by Don Flenniken.