Lichens and lichenicolous fungi in the rural landscape of the Warmia Plain were studied. Lichen species were observed on old wooden fences, roadside trees, fruit trees, pylons, farm machinery, buildings and bridges. The analysed biota consists of 104 taxa with several noteworthy and rare lichens.
The lichen biota of a forest ravine was studied. Investigations were carried out in the Grabianka river valley situated in the Elbląg Upland (Wysoczyzna Elbląska). The analyzed lichen biota is very interesting and relatively rich. A total of 122 taxa were found in the area, of which 12 are legally protected, 46 are considered endangered in Poland and 13 are indicators of lowland primeval forests. Some other interesting and rare taxa were also recorded, including Reichlingia leopoldii, Mycobilimbia epixanthoides and Scoliciosporum pruinosum. In addition, a number of rare non-lichenized fungi were identified, such as Tremella cladoniae, Chaenothecopsis savonica or Mycocalicium subtile.