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Lichens are a unique form of plant life, the product of a symbiotic association between an alga and a fungus. The beauty and importance of lichens have long bee

Based on the acclaimed reference Lichens of North America, this resource for the classroom, field, and laboratory presents updated and expanded keys for the ide

"This book can be used to identify macrolichens from Oregon and Washington ... Reasonable coverage for lichens of Idaho and Montana, inland to the Continental D

Discover the world of mosses, liverworts, lichens and ferns. Contains descriptions of the major vegetation zones and species distribution maps. Habitats are des