EN
The paper reports the results of karyological studies on seven fern species from the Polish Carpathians. Their chromosome numbers counted in root tip mitoses are reported for the first time from Poland. The specimens originated from the Tatra Mts and Pieniny range. Chromosome numbers were established for Asplenium viride (2n = 72), Athyrium filix-femina (2n = 80), Dryopteris filix-mas (2n = 164), Gymnocarpium dryopteris (2n = 160), Gymnocarpium robertianum (2n = 160), Phegopteris connectilis (2n = 90) and Phyllitis scolopendrium subsp. scolopendrium (2n = 72). The chromosome numbers from the Polish material match those reported from other countries. Information on the distribution and habitats of the investigated fern species is also provided.