Lecanora praeferenda (Nyl.) Nyl. (1891: 63) 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 : 78

Lecanora praeferenda (Nyl.) Nyl. (1891: 63) MycoBank no. 389028

Records of L. praeferenda for the Galapagos are problematic and could not be confirmed here. Guderley (1999) did not cite a specimen, but his distribution map suggests that this species occurs in the Galapagos (fig. 10B, p. 166). The species is morphologically and anatomically similar to L. tropica , but it can be distinguished by its different epihymenium. Both have distinctly sessile apothecia with deep orange brown to fuscous brown discs, but the epihymenium of L. tropica lacks crystals and its brownish pigmentation is persistent in K (glabrata - type). The epihymenium of L. praeferenda contains crystals and both the crystals and brownish pigment are soluble in K. All specimens morphologically similar to L. praeferenda examined here had a glabrata - type epihymenium and thus belong to L. tropica . The distribution record on the map in Guderley (1999) is therefore most likely in error.