USDA Forest Service Celebrating Wildflowers
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LichensThere are approximately 3,600 species of lichens in North America and those are just the ones we know about! New discoveries are being made every year. Lichens are found all across North America and all over the world. They are found in a vast diversity of habitats and climates, from the Sonoran desert on the Coronado National Forest, to the alpine tundra of Alaskan mountains on the Chugach National Forest, and in the tropical rainforests of the El Yunque National Forest in Puerto Rico. Lichens are interesting organisms. They are diverse, adaptable, functional, and little understood. They play an important role in our natural ecosystems and can let us know when those ecosystems are in trouble. Lichens are beautiful, especially when you view a lichen-drenched Douglas-fir or a colorful crust-covered cliff, and up close when viewed under a hand-lens or microscope. Welcome to the world of lichens on our national forests and grasslands! Spotlights on LichensWhat are lichens? What Lichens Are Not Why are lichens important? Lichen Biology Lichen Habitat Identification Did You Know? Photo Gallery Lichen Viewing Areas Lichen Glossary |
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Location: http://www.fs.fed.us/wildflowers/interesting/lichens/index.shtml
Last modified: Tuesday, 24-Jun-2008 21:54:37 EDT