Stan i zagrożenia populacji Luronium natans (l.) Rafin w Jeziorze Orzechowskim koło Nowogardu

Abstract

Luronium natans is a rare, endangered and protected species, which requires areas Nature 2000 to be designated. The research on the population of this species in Orzechowskie Lake (Western Pomerania, Poland) was conducted in 2007. 21 concentrations of Luronium natans, each on area 0.04–1.0 m2 were recorded and characterized. In 12 of them blooming specimens were observed, but fruits were not found. The plant propagates only vegetative on described site. On the basis of 12 releves Luronietum natantis community was distinguished with Luronium natans and Hydrocotyle vulgaris as dominant.