TO THE BRYOPHYTE FLORA OF THE NATIONAL NATURE PARK “ZALISSIA”

Abstract

The National Nature Park “Zalissia” was created in 2009 on the territory of Kyiv and Chernihiv regions on an area of 14836 hectares. The park consists of the tracts of forest “Zalissia” and “Gogolivski groves” and a small Prydesnyanska area near the village of Nyzhnya Dubechnya, Vyshgorod district. Thevegetation here is represented by pine, pine-oak, oak-hornbeam, alder forests, sandy steppes, floodplainmeadows and swamps.In May and October 2024, the author of the article made trips to the tracts “Zalissia” and “Gogolivski groves”. Oak, alder, pine forests, poplar plantations, sedge swamp, psammophyte steppe area, artificial rocky substrates were surveyed. About 60 packages of bryophytes were collected. Today, a total of 74 bryophyte species have been identified in the Zalissia National Park, of which 5 are liverwort species and 69 are mosses. The leading places in the spectrum of moss families are occupied by Orthotrichaceae (11 species), Brachytheciaceae (9) and Amblystegiaceae (5); the remaining 22 families include 1–4 species. The species richness of the families Orthotrichaceae, Brachytheciaceae, and to a lesser extent Dicranaceae, Mniaceae, and Polytrichaceae indicates the high forestation of this territory.Due to its low wetlands, lower positions in the spectrum of families are occupied by Amblystegiaceae and Sphagnaceae, which are characteristic of the waterlogged biotopes of Polissya. Liverworts arerepresented by only 5 families, each containing one species.The oak-hornbeam forests of the park are distinguished by the greatest richness of bryophytes. The least species diversity is observed in sandy steppes and swamps. The originality of the park’s bryoflora is given by calciphilic epiliths that settle on artificial rocky substrates.Some rare species were found in the park: Schistidium helveticum – new for the plain part of Ukraine, Didymodon rigidulus – new for Ukrainian Polissya and four species new for Left-Bank Polissya – Cephaloziella rubella, Schistidium crassipilum, Pulvigera lyellii, Orthotrichum anomalum.