A synopsis of the genus Davydov, Yakovcz. & Printzen (Lecanoraceae, Lecanorales).

This study shows that and are closely related to the recently described genus . These taxa are nested in a sister position to the known spp. in a phylogenetic reconstruction based on three loci: mtSSU, nuITS, and nuLSU. The clade incorporating all the above-mentioned taxa is shown to be monophyletic and strongly supported. Consequently, a broader circumscription of the genus is proposed, along with two new taxonomic combinations: (Creveld) Mazur & Śliwa and (B.D. Ryan) Mazur & Śliwa. Additionally, based on similarity to other members of , a new combination for is made. A key for the identification of all species is provided as well.