P. acetabulum P. koflerae Pleurosticta is a small genus of foliose lichens belonging to the family Parmeliaceae.
However, H. Thorsten Lumbsch, Hans Kothe, and Jack Elix argued against this in 1988, choosing instead to resurrect Pleurosticta.
Their decision was based on detailed morphological, chemical, and geographical studies which demonstrated that P. acetabulum and P. koflerae formed a distinct group warranting recognition at the generic level.
The resurrection was supported by several distinctive characteristics that set these species apart from other members of the "brown Parmeliae", including the presence of a pored epicortex, bacilliform to fusiform conidia, a distinctive chemistry characterized by the presence of β-orcinol depsidones, and unique geographical distribution patterns.
[4] A key distinguishing feature of Pleurosticta is its temperate distribution pattern, setting it apart from related genera which are found in different climatic regions.