Reshetyuk O. The genus Cypripedium L. (Orchidaceae Juss.) in Ukraine (classification, horology, phytocenology and its species protection ex situ and in situ).

. Objects - species of genus Cypripedium L. (Orchidaceae Juss.). Dissertation presents the results of classification, horology, phytocenology of genus Cypripedium L. The author has investigated natural localities of C.calceolus L. in Ukrainian flora, their age composition, spaciousness structure, reproduce process, peculiarities of restoration and population strategy in forest groupings. The ontogenesis has been studied in culture and methods of seed and vegetable reproduction too. The author has used these results successful for repatriation of these plants into natural conditions for the new grouping creation or for the restoring of destructed populations. The work contains phylogenetical and ecologic-geographical analysis of the genus Cypripedium and their perspectives for introduction in Ukraine. Five species with one hybrid are introduced successful. The author offers effective methods of Cypripedium's species protection.