With 909 recognized species of lichens, Great Smoky Mountains National Park (GSMNP) is home to more of these lichenized fungi than any other national park in the United States, as well as nearly half of all species known to occur in eastern North America. There is a great deal of room for scientific exploration, inquiry, and systematic description in the realm of lichenology. In Field Guide to the Lichens of Great Smoky Mountains National Park, Erin Tripp and James Lendemer take o...