Contribution to the knowledge of some poorly known lichens in Poland IV. Bacidia fuscoviridis and Bacidina brandii

Bacidia fuscoviridis and Bacidina brandii, two lichen-forming fungi, are reported from Poland. Bacidia fuscoviridis, previously known from only one locality in Poland, has been found in several ranges of Western Carpathians on natural rocks as well as on hydrotechnic constructions. The only published collection of Bacidina brandii from Poland was re-examined, and determined as Bacidina sulphurella. In addition to the author’s recent collections, which are new to the Carpathians, B. brandii has been discovered several times in some Polish herbaria in materials labelled as Bacidina phacodes. Illustrated descriptions and taxonomic, ecological, and distributional notes are provided for both species.