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A Lichen in Close-up
- Images of a lichen at three different magnifications, the most detailed showing the algal and fungal components.
Black Lichen: Lichina pygmaea
- Photograph and information on this maritime species and a map showing its distribution in Britain.
Black Shields: Tephromela atra
- Photograph and information on this species with a map showing its distribution in Britain.
British Soldier Lichen
- Student project on Cladonia cristatella with classification, habitat, phylogenetics and environmental interactions.
Caloplaca coralloides
- Research project by Megan Kelso provides photographs and plenty of information on this lichen which can be found living on rocks close to the sea.
Catalog of California Lichens
- 1575 species have been identified from this state, the great geographic diversity being responsible for the relatively large number of lichens found.
Cetraria islandica
- Photograph and information on this lichen which has been used as a food in time of famine.
Checklist of UK Recorded Lichens
- Provides a list of all the species known to be found in the United Kingdom.
Cladina: Reindeer Lichens
- Information and photographs of Cladina mitis, C. rangiferina and C. stellaris, their description, habitat and other notes.
Cladonia cristatella
- Article by Tom Volk on the British soldier lichen, where the fungal element is associated with the green alga, Trebouxia erici.
Cladonia rangifera
- Article by Tom Volk on this lichen, often known as Reindeer Moss, and on lichens in general.
Cladonia: Club Lichens and Cup Lichens
- Photographs and information on these lichens, their description, habitat and other notes.
Common Orange Lichen: Xanthoria parietina
- Photograph and information on this species and a map showing its distribution round the coasts of Britain.
Cryptothecia rubrocincta, the Christmas Lichen
- Photographs and article by Tom Volk on this spectacular lichen which can be found in the tropical regions of the Americas.
FIA Lichen Indicator
- The Forest Inventory and Analysis service in the United States monitors the lichen community in order to assess the impact of air pollution on forest health.
Growth and Development in Lichens
- Each species of lichen has its own preferred substrate. This article describes how and where they grow and the extremes of climate that they can tolerate.
Identifying North American Lichens: A Guide to the Literature
- Provides general lichen references including works for beginners, lichen keys online, and a lichen bibliography by genus.
Introduction to Lichens
- A lichen is a combination of two organisms which live together intimately. Information on their fossil record, life history and ecology, systematics and morphology.
LIAS
- Provides a global information system for lichenized and non-lichenized ascomycetes.
Letharia vulpina
- Photograph of Wolf Lichen which in the past was put to many uses by the indigenous peoples in North America.
Lichen Determination Keys Available on the Internet
- Provides links to keys providing details of the lichens that can be found in many countries throughout the world.
Lichen Images
- Provides photographs of about 50 species.
Lichen Pictures
- Photographs of Acolium hawaiiense, Acroscyphus sphaerophoroides, Anaptychia leucomelos, Bacidia medialis, Bryoria furcellata, B. smithii, Buellia aeruginascens, B. proximata, B. pruinosa, B. tincta, Caloplaca erythrantha and Teloschistes flavicans.
Lichen Portrait Gallery
- Photographs of over eighty species of lichen from North America.
Lichenland
- Offers ways to find out more about lichens including Lichenlite, an introduction for children. For more advanced study there is a synoptic key and an identification aid.
Lichens
- An illustrated introduction to the lichens with information on their ecology and reproduction.
Lichens
- Photographs of several species of lichen growing in their natural habitat in Hawaii.
Lichens of North America
- Details of the book of this name, and an interesting introduction to the biology of lichens and their relationships with man and the environment.
Lichens: Dual Organisms
- Twenty four photographs ranging from lichen covered rock faces, through individual species to magnified sections, published in a pictorial supplement to the Fifth Kingdom.
Life on the Rocks
- A peep into the world of lichens by Paul James with photographs of a number of species growing in Wales.
Niebla and Vermilacinia Communities
- Photographs and information on the lichens in the Ramalinaceae family found in California and Baja California.
Orange Sea Lichen: Caloplaca marina
- Photograph and information on this maritime species with a map showing its distribution in Britain.
Parelle: Ochrolechia parella
- Photograph and information on this maritime species with a map showing its distribution in Britain.
Peltigera aphthosa
- Photograph and description of the freckle pelt or spotted dog lichen, its habitat and other notes.
Plants Profile for Fayodia striatula
- Details of this lichenous member of the family Tricholomataceae.
Reproduction and Reproductive Structures
- Outline with diagrams of the two fundamentally different sorts of reproductive bodies possessed by lichens, and the three main types of vegetative reproduction where pieces of lichen detach.
Sac Fungi (Ascomycota)
- Photographs and information on a number of species of lichen associated with a marine habitat.
Sea Ivory: Ramalina siliquosa
- Photograph and information on this maritime species and a map showing its distribution in Britain.
Tar Lichen: Verrucaria maura
- Photograph and information on this maritime species with a map showing its distribution round the coasts of Britain.
The Earthlife Web Lichen Image Directory
- About 40 images of lichens, including some unidentified ones.
Verrucaria mucosa
- Photograph and information on this maritime species and a map showing its distribution in Britain.
Walton Hall Nature Trail
- Take a walk through the churchyard to see what lichens grow on the different man-made outcrops of stone.
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