J. Vondrák, J. Šoun, O. Redchenko, L. Likös & A. Khodosovtsev: Ekologické zvláštnosti pozorované u dvou druhů Caloplaca v pohoří Bükk v Maďarsku. – Bryonora 44 (2009): 8-12. pdf separát (166 kB)
Keywords: Caloplaca monacensis, Caloplaca pyracea, substrate ecology, substrate specificity, Teloschistales
Abstract: Species of Caloplaca appear to be strongly substrate specific in general. Caloplaca monacensis (related to C. cerina) and C. pyracea (related to C. holocarpa) are not exceptions; both are epiphytic species with rather restricted niches. The former is termophilous and baziphilous occurring in central and southern Europe, but the later occurs on nitrogen-rich barks throughout Europe. Possessing different ecology, both species can hardly grow side by side; however, we observed them together in rich populations on cherty limestone in the Bükk Mts. A specific SiO2 addition in the limestone rocks harbouring these species may explain this ecological abnormality. Identification of both species was confirmed by ITS nrDNA molecular data.