Lichens and lichenicolous fungi from the Retezat Mts and overlooked records for the checklist of Romanian lichens

Records of 223 taxa of lichens, lichenicolous fungi and non-lichenized but lichen-like fungi are reported from the Retezat Mts, south-western Romania. The list includes 44 taxa new to Romania: Absconditella pauxilla, Acarospora heppii, Agonimia gelatinosa, Agonimia tristicula, Anaptychia bryorum, Arthrorhaphis grisea, Bacidia illudens, Biatoridium monasteriense, Buellia uberior, Caloplaca arenaria, C. cerinelloides, C. chrysodeta, C. magni-filii, C. saxifragarum, C. tiroliensis, C. velana var. schaereri, C. xanthostigmoidea, Candelariella aggregata s. l., C. antennaria, Chaenotheca xyloxena, Dacampia hookeri, Dactylospora urceolata, Epilichen scabrosus, Fellhanera subtilis, Frutidella pullata, Gyalecta geoica, Illosporium carneum, Lecanora cavicola, Leptogium teretiusculum, Lichenoconium lecanorae, Lichenomphalia umbellifera, Macentina abscondita, Micarea botryoides, Mniacea nivea, Phaeorrhiza nimbosa, Porina arnoldii, Protoblastenia terricola, Protoparmelia atriseda, Protothelenella sphinctrinoidella, Psorinia conglomerata, Rhagadostoma lichenicola, Rhizoplaca melanophthalma, Sarea resinae, and Sphaerellothecium minutum. Stigmidium aff. cerinae, lichenicolous on Lecanora epibryon, is possibly an undescribed species. Taxonomic comments to identities of our samples are made for Caloplaca xanthostigmoidea, Candelariella cf. aggregata, C. antennaria and C. plumbea. In a second part of our paper, we provide additions to the checklist of Romanian lichens from the literature, listing species which lack in both the Catalogue of Lichens in Romania by Ciurchea and Feuerer's lichen checklist of Romania.