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Dactylorhiza ruthei (Orchidaceae) w polskiej części Pojezierza Litewskiego
The Polish part of the Lithuanian Lake District is the main area of distribution of Dactylorhiza ruthei. Twenty three localities of the species were documented. They were mainly concentrated in theExpand
Nowe stanowiska Swertia perennis subsp. perennis (Gentianaceae) na torfowiskach północno-wschodniej Polski
The two populations discovered are threatened of all due to overgrowing of mires with shrubs and trees, therefore, active conservation measures should be undertaken to protect the species. Expand