Biodiv. Res. Conserv. 55: 15-24, 2019 BRC www.brc.amu.edu.pl DOI 10.2478/biorc-2019-0012 Submitted 25.01.2019, Accepted 30.09.2019 A new finding of a uniquely large population of Anacamptis morio (Orchidaceae) on the Left-Bank Ukraine Vasyl L. Shevchyk1, Igor V. Solomakha2, Oksana V. Shevchyk1, Tetyana S. Dvirna3*, Volodymyr A. Solomakha4, Taras V. Shevchyk1 & Tetyana V. Fitsailo3 1Taras Shevchenko National University of Kyiv, NSC Institute of Biology and Medicine, Hlushkova Avenue 2, 03127 Kyiv, Ukraine; ORCID: VLS – http://orcid.org/0000-0002-3696-1968, TVS – http://orcid.org/0000-0001-6898-8623 2Institute of Agroecology and Environmental Management of National Academy of Agrarian Sciences of Ukraine, Mikhail Omelyanovich- -Pavlenko 9, 01010 Kyiv, Ukraine; IVS – http://orcid.org/0000-0001-8853-2973 3M. G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine, Tereshchenkivska 2, 01601 Kyiv, Ukraine; TSD – http:// orcid.org/0000-0002-9279-9766 4Vasyl' Stus Donetsk National University, 600-Richchya 21, 21000 Vinnytsya, Ukraine; VAS – http://orcid.org/0000-0003-3975-5366 *corresponding author (e-mail:
[email protected]) Abstract. The paper presents the results of the research of local population of Anacamptis morio (L.) R. M. Bateman on the territory of the Left-Bank Ukraine. The size of this population was estimated at about 250-300 thousand individuals. The average density of individuals per 1 m2 is 12, while in terms of age structure, dominate individuals in the generative stage (70- 75%). A. morio inhabits fresh, forest-meadow biotopes. Its populations are found in fresh eutrophic and moist mesotrophic meadows and in coastal floodplain forests.