Labanoras Telmological Reserve is situated in Labanoras Regional Park (Švenčionys district, East Lithuania). The western part of the reserve, occupying an area of about 1 km2, harbours 19 species included into the Red Data Book of Lithuania. Three plant species, one butterfly species included in the Annex II of EU Habitat Directive, and three habitat types of European importance were identified in this territory. Data on species and their populations are presented, and measures of conservation are briefly discussed.
Keywords: Liparis loeselii, Saxifraga hirculus, Thesium ebracteatum, Euphydrias aurinia, Labanoras Regional Park, Lithuania.