| This category in other languages: | | | |
 | - British Lichen Society - - Advance interest in all branches of lichenology. Includes comprehensive information on British lichens.
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 | - Dutch Lichens - - Photos and information about lichen biology. In Dutch and English.
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 | - Introduction to Lichens - - Information about lichens including fossil record, life history, ecology, morphology and systematics.
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 | - 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.
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 | - LichenLand - - General information for young students including synoptic key and photos.
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 | - 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.
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 | - Lichens.de - - Photos of lichens taken during British Lichen Society field trips in Britain. Contains general information and related links.
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 | - Queensland Lichens - - General information on subtropical lichens from Queensland, Australia. Includes keys to genera and species, and glossary.
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 | - Roccella - - Lichen genus found in Venezuela.
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