TERRESTRIAL FERNS GROWING IN OPEN GROUND IN THE COLLECTION OF THE UNN BOTANICAL GARDEN - RESEARCH INSTITUTE <i>IN SITU</i> AND <i>EX SITU</i>
We give a brief description of the technology for establishing an exposition of ferns growing in open ground and a list of the collection of terrestrial ferns in the open ground of the UNN Botanical Garden - Research Institute. This list consists of 34 species and 6 decorative forms, including 3 native species growing in situ and 3 species from the Red Book of the Nizhni Novgorod region.