Parmelia Synonyms from the B.L.S. Checklist of Lichens of Great Britain and Ireland (1994)

See Elix, J.A. (1993) The Bryologist 96 (3): 359-383 for complete analysis of genera

Pleurosticta Petrak
2 species
Thallus ± closely attached, ± wide-spreading, lobes rounded, often undulate, upper surface green to brownish (HNO₃+ violet) (oily deep green when wet), pseudocyphellae and cilia absent; lower surface ± densely rhizinose often naked towards the margins, rhizines simple.
Corticolous, rarely saxicolous
Asia, Europe, N. Africa; temperate-boreal

982 : acetabulum