The genus Pertusaria DC. s.l. (Pertusariales, Ascomycota) is characterized by crustose, continuous to cracked thalli (in many species with isidia or soredia), usually large apothecia with open or perithecia-like discs, large and simple ascospores with thick, simple layered or laminate walls which are uniform, ornamented or striate. and 1–8-spored asci with thick walls. Secondary lichen metabolites are very diverse in Pertusaria and include xanthones, fatty acids, depsides and/or depsidones. The genus is cosmopolitan and its members are found from the Arctic and Antarctic to the tropics in both Hemispheres. Nevertheless, there are still significant gaps in the distribution of many taxa in different regions of the world and many uncertainties related to taxonomy within the genus. During the study on Pertusaria in the herbaria, H, HBG and TUR, type collections of six name appeared to represents synonyms of different taxa: Pertusaria atropallida Vain. (= Pertusaria coccodes (Ach.) Nyl.), P. inopinata Erichsen (= Lepra excludens (Nyl.) Hafellner), P. jurana Erichsen (= Lepra albescens (Huds.) Hafellner), P. jurana var. confluens Erichsen (= Ochrolechia turneri (Sm.) Hasselrot), P. poriniza Nyl. (= Ochrolechia szatalaensis Verseghy) and P. uralensis Vain. (= Pertusaria coccodes). In addition, lectotypes were selected for Pertusaria atropallida, P. inopinata and P. jurana. Moreover, it was also necessary to conserve the name Ochrolechia szatalaensis.
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