Foliose lichens are leaf-like, with an obvious front and back. The two sides may be different colors.
The Lobarias ("lung lichens") provide a valuable food source for deer and elk. This common lichen can achieve a biomass of up to a ton per 2.5 acres.
The Peltigeras ("pelt lichens") grow on bark or rock, and are characterized by root-like structures (rhizines) on the backs of their lobes. Several species occur in the park.
The Platismatias are very limp when fresh, hence their common name of "rag lichens." Normally greenish-grey, they may turn pink with age.
Commonly known as "tube lichens," the Hypogymnias have inflated, hollow lobes and generally display large dish-shaped apothecia.
The Nephromas ("kidney lichens") often exhibit a light-colored fringe around their edges.
Some lichens like this Umbilicaria will only be found growing on rock. Umbilicarias are attached to their substrate at a central point, an "umbilicus."
Last updated: July 13, 2020