Remarks about some lichen species in Borecka primeval forest (North-East Poland). – Botanica Lithuanica, 4(2): 157–168

Remarks about lichen flora of well-preserved deciduous forest in Borecka Primeval Forest in north-eastern Poland are given. The lichens – old forest indicator species, e.g. Chaenotheca brachypoda, C. chlorella, Lobaria pulmonaria, Pyrenula nitida and Thelotremalepadinum were collected. Three taxa new to Poland, i.e. Micarea botryoides, Scoliciosporum pruinosum and Trapelia corticola were recorded. Some lichens (e.g. Biatora fallax, Chaenotheca laevigata, Anisomeridium nyssaegenum, Biatoridium monasteriense) rare in Poland are noted.

Keywords: lichens, old forest indicator species, deciduous forests, Poland.