Protoparmeliopsis M. Choisy (1929: 524) MycoBank

Bungartz, Frank, Elix, John A. & Printzen, Christian, 2020, Lecanoroid lichens in the Galapagos Islands: the genera Lecanora, Protoparmeliopsis, and Vainionora (Lecanoraceae, Lecanoromycetes), Phytotaxa 431 (1), pp. 1-85 : 72

Protoparmeliopsis M. Choisy (1929: 524) MycoBank no. 4391

Originally only erected for Lecanora muralis , the group now comprises ca. 50 species with a pale, whitish, yellowish green to pale olive or pale brownish beige placodioid or umbilicate thallus usually containing usnic, placodiolic or pseudoplacodiolic acids and with adnate to distinctly sessile lecanorine apothecia. The disc is yellowish green to pale or deep brown and usually epruinose, the epihymenium and hymenium mostly inspersed with brown granules soluble in K. The conidia are filiform. Zhao et al. (2016) showed that Protoparmeliopsis forms a distinct clade within Lecanora closely related to Myriolecis and Rhizoplaca . The distinction from the latter requires further study to determine, for example, whether Rhizoplaca peltata (Ramond) Leuckert & Poelt in fact belongs here.