Nowe gatunki grzybów makroskopijnych w biocie Wigierskiego Parku Narodowego

In the year 2021 mycological investigations were carried out in the Wigierski National Park (NE Poland). Fifteen 0.04-ha plots, including 5 with low proportion of hazel (< 30%) and 10 with high proportion of hazel (≥ 75%) in the understory, were established in phytocoenoses of a mesophilous oak-linden hornbeam forest (Tilio cordatae-Carpinetum betuli). Macrofungi were surveyed on these plots during the summer and autumn season based on the presence/absence of sporocarps. As a result, 320 taxa of fungi have been recorded, which accounts for ca 28% of macrofungi biota of the park. During this survey 28 species new to this area have been found. The paper provides information about their localities and habitats.