The lichen flora of different deciduous (oak, maple, ash, etc.) and pine forest stands in the Lisnyky Botanical Preserve (Kyiv, Ukraine) within 17 plots was studied. So far 126 lichen species and 3 lichenicolous fungi, e.g. Athelia arachnoidea, Clypeococcum hypocenomycis and Xanthoriicola physciae, were listed. Agonimia borysthenica is recently described asa a new to science lichen species. Bacidia pycnidiata and Thelenella pertusariella are reported as new for Ukraine. Absconditella lignicola, Anisomeridium biforme, Bacidia laurocerasi, B. subincompta, Bactrospora dryina, Lecania croatica, Stenocybe pullatula, Verrucaria viridigrana are reported for the first time for the plain part of Ukraine and 17 species are new for Kyiv Region. The distribution, ecology and conservation status of rare species and indicators of old-growth woodland are briefly discussed. The importance of the Lisnyky Botanical Preserve for the maintenance of lichen biodiversity is clearly illustrated by the presence of 17 indicator species which are included in the Red Lists of many European countries.
Keywords: new species, Agonimia borysthenica, Bacidia pycnidiata, Thelenella pertusariella, lichens, forest type, indicators of old woodland, Holosiivskyi National Nature Park
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