Parmelia sulcata (Shield Lichen)
Since nearly all (~99%) lichen mycobionts are ascomycete fungi and all of the ascomycetes that I have found so far are lichens, I thought I'd put some links here about lichens and their identification.
Lichen links
Ways of Enlichenment
Lichens of North America Information
The Consortium of Lichen Herbaria
Videos
Lichen Identification Using Chemical Spot Testing
Lichen Identification Methods
Lalita Calabria: Intro to Crustose Lichen Identification
Lachnum sp.
On bark of firewood. Diameter of cup ~ 0.5 mm.
Physcia aipolia (Hoary Rosette Lichen)
Thallus diameter ~ 15 mm\nOn the bark of a honey locust tree
Associated Species: Gleditsia triacanthos (Honey Locust)
Polycauliona polycarpa
On an apple tree branch.\r\nApothecia ~ 1 mm diameter.
Protoparmeliopsis muralis (Stonewall Rim Lichen)
On the horizontal surface of a concrete block. 35 mm diameter.
Lecanoromycetidae (Shield Lichens, Sunburst Lichens, Rosette Lichens, and Allies)
On bark of Silver Maple tree.\r\nThe left photo is on site after a morning rain. \r\nRight after drying overnight.
Parmelia sp. (Shield Lichens)
Evernia sp. (Oakmoss Lichens)
Caloplaca sp. (Firedots)
On north side of trunk of silver maple tree, ascus diameter 0.8 mm\r\n\r\nCaloplaca sp. maybe?
Polycauliona sp.
On concrete blocks facing east. \r\n
Shrubby sunburst lichen (Polycauliona candelaria ) maybe?
Xanthorioideae
On bark of Black Locust tree
Parmelia sulcata (Shield Lichen)
On a European Weeping Birch trunk