Foliose Lichens

Foliose lichens are leaf-like, with an obvious front and back. The two sides may be different colors.

 

An example of a Lobaria lichen.

NPS/C. Vecchio Photo

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.

 

Two examples of Peltigera lichens: Peltigera membranacea (top) and Peltigera britannica (bottom).

NPS/C. Vecchio Photos

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.

 

Platismatia glauca lichen.

NPS/C. Vecchio Photo

The Platismatias are very limp when fresh, hence their common name of "rag lichens." Normally greenish-grey, they may turn pink with age.

 

Two examples of Hypogymia lichens. The top photo is Hypogymnia apinnata.

NPS/C. Vecchio Photos

Commonly known as "tube lichens," the Hypogymnias have inflated, hollow lobes and generally display large dish-shaped apothecia.

 

Nephroma helveticum lichen.

NPS/C. Vecchio Photo

The Nephromas ("kidney lichens") often exhibit a light-colored fringe around their edges.

 

Umbilicaria angulata lichen.

NPS/C. Vecchio Photo

Some lichens like this Umbilicaria will only be found growing on rock. Umbilicarias are attached to their substrate at a central point, an "umbilicus."