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Project Noah Nature School
Genus: Parmelia
This is a foliose (leaf-like) lichen. Lichens are composite organisms comprised of a fungus and an alga. They are usually classified according to the fungal component, in this case Parmelia (possibly P. caperata).
Growing on the side of a live tree; rural SW Pennsylvania
Spotted on Dec 15, 2012
Submitted on Dec 15, 2012
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