Kliuienko O. The Rosa L. species in the natural flora of Ukraine (systematic, distribution, viomorphological pweculiarities).

Dissertation is devoted to research of the representatives of Rosa L. genus in the natural flora of Ukraine. We generalized the data on the species diversity and taxonomy of Rosa in the natural flora of Ukraine. The ecological-geographical analysis of Rosa species in the natural flora of Ukraine was realized for forcasting of their introduction success. We studied the initial stages of the ontomorphogeny of 10 Rosa species and established the decorative and adaptive properties of 19 species of Rosa of the natural flora of Ukraine which are concentrated in the collection of the National Botanical Garden. Besides, we composed the detail characteristics of the all Rosa species within the natural flora of Ukraine and we paid the peculiar attention to the rare and endemic Rosa species including the data on their distribution and proposals on their protection.