Epiphytic lichens of Quercus robur in Wigry National Park (NE Poland)

The study covered diversity of lichens on bark of Quercus robur in rich deciduous forest Tilio-Carpinetum and Scotch pine forest Serratulo-Pinetum in Wigry National Park (NE Poland). Ninety eight taxa of lichenized fungi have been recorded, which accounts for over 30% of lichens biota of the Park. Greater diversity of species has been noticed on oaks grown in Tilio-Carpinetum phytocenosis. Among the found lichens, 14 are protected by law and 18 are threatened in Poland. Moreover, 10 new species for Wigry National Park lichen biota have been found.