Brief article.

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

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

General information.

Provides answers to common questions with a list of other sources of information.

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

List of species protected by law in different countries.

Information on monograph.

Description, structure, and environmental importance.

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

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

Information about Steve Selva's research program in lichenology. Includes a photo gallery of stubble lichens under the microscope.

General information for young students including synoptic key and photos.

Red list including lichenicolous fungi, and additional information about projects and publications.

Information on monitoring air quality, bibliography, and photos.

Information about lichen biology, lichens and wildlife, lichens and people, and the book of the same title, which was published in 2001.

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

Photographs, general information, identification and related links.

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

Habitat notes, distribution maps, and color photographs of over 90 species of macrolichens by Don Flenniken.

Lichen genus found in Venezuela.

Brief information and links by researcher Isidro T. Savillo.