Parmelina quercina is a species of foliose lichen in the large family Parmeliaceae.
[2] Finnish lichenologist Edvard August Vainio considered it better classified in Parmelia,[3] which at the time was a large genus that contained most foliose, or so-called "parmelioid" lichens.
Mason Hale transferred it (and 40 other former Parmelia species) to the newly circumscribed genus Parmelina in 1974.
[4] In 2007, molecular phylogenetic analysis was used on specimens collected from around the world, which showed that the collection of specimens being called Parmelina quercina actually represented four distinct species.
[6] Because Willdenow's original specimens of Parmelina quercina, collected from "im Thiergarten & prope Tegel" in Berlin, have been lost, a neotype from Germany was designated for the taxon in 2009.