Parmelia sulcata
Encyclopedia
Net-marked parmelia or Shield lichen, is a lichen in the family Parmeliaceae
Parmeliaceae
The Parmeliaceae is a large and diverse family of Lecanoromycetes. With over 2000 species in roughly 87 genera, it is currently regarded as the largest family of lichen forming fungi...

. It is very tolerant of pollution and is widespread making it one of the more common lichens
Lecanoromycetes
Lecanoromycetes is the largest class of lichenized fungi. It belongs to the subphylum Pezizomycotina in the phylum Ascomycota. The asci of the Lecanoromycetes most often release spores by rostrate dehiscence....

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