До бріофлори Древлянського природного заповідника

Abstract

Currently іn Ukrainian Polissya there are four nature reserves – Cheremsky, Rivnensky, Polissky and Drevlyansky, of which only the latter remained unexplored in briological aspect. At summer 2016 the bryophytes of the Drevlyansky nature reserve (the Narodychi district of the Zhytomyr Region, Ukraine) were investigated by authors of the paper. It was examined pine, oak and pine, oak and hornbeam woods, eutrophic swamps, granite outcrops on the river Uzh and various artificial substrates. According to previous data, at bryoflora of the Drevlyansky natural reserve it was established 85 species, out of them 72 ones are reported for the first time. Liverworts in the reserve are presented mostly common species (Marchantia polymorpha L., Pellia epiphylla (L.) Corda, Riccia fluitans L., Lophocolea heterophylla (Schrad.) Dumort., Ptilidium pulcherrimum (Weber) Vain. etc.). Mosses are represented by 77 species. The genera of Orthotrichum Hedw. (7 species), Sphagnum L., Dicranum Hedw., Grimmia Hedw., Bryum Hedw. (all of 4 species) have the highest relative richness of taxa. This is related to the zonal (the presence of forests and wetlands) and regional (the presence of granite) features of the area. In the reserve the greatest species diversity was found on soil (47 species), after that follow trunk of trees (29 ones), stony substrates (21) and dead wood (13 species). Fissidens fontanus (Bach. Pyl.) Steud., a species from the Red Book of Ukraine, as well as regional rare bryophytes Riccardia incurvata Lindb., Campyliadelphus chrysophyllus (Brid.) R.S.Chopra and Syntrichia papillosa (Wils.) Jur. occur there. On the whole, the Drevlyansky nature reserve, like Polissky reserve, plays the important role in protection of epilithic bryophytes of the Zhytomyr Polissya.