New chorological data on some rare and threatened ferns in Serbia

Ferns are a plant group that has been neglected in terms of research on their distribution, ecology and conservation in Serbia. This study reports the first findings of Athyrium distentifolium (Athyriaceae) in Serbia and presents the distribution of three other ferns of the Serbian flora (Thelypteris limbosperma, Thelypteris palustris and Phegopteris connectilis) from the family Thelypteridaceae. The distribution data were obtained on the basis of field investigations, checking and revision of herbarium material and published sources. The distribution maps of these taxa in Serbia were created on a 10x10 km UTM grid system. Data on their habitat and ecological preferences, conservation status and threat factors within the study area are provided.