New and remarkable lichen records for the federal state of Thuringia

Records of newly reported, extremely rare or critically endangered lichens for Thuringia are presented. Absconditella lignicola, Acrocordia cavata, Agonimia allobata, A. flabelliformis, A. vouauxii, Alyxoria ochrocheila, Bacidia arceutina, B. trachona, B. viridifarinosa, Bacidina neosquamulosa, Caloplaca luteoalba, Candelariella plumbea, Cyphelium karelicum, Gregorella humida, Lecanactis dilleniana, Lecania sylvestris, Lempholemma isidiodes, Strigula jamesii, Thelenella muscorum, Umbilicaria subglabra and Verruculopsis lecideoides are reported for the first time from Thuringia. Recent records of species previously thought to be extinct are Bacidia rosella, Caloplaca cerina, Heppia lutosa and Parmelina quercina. The regional distribution of Evernia mesomorpha, Chaenotheca brachypoda, Pycnothelia papillaria and Usnea flavocardia is mapped.