Information about lichen biology, lichens and wildlife, lichens and people, and the book of the same title, which was published in.
A lichen is a composite organism that arises from algae and/or cyanobacteria living among filaments of multiple fungi in a symbiotic relationship. The combined Lichen (disambiguation) · Crustose · Foliose lichen · Lichenotheliaceae.
Lichens are among the most common and most overlooked organisms in Rocky Mountain National Park. They grow on rock surfaces, trees, and downed logs.