The results of the geographic analysis of the flora of Biloozersky National Nature Park according to G. Meusel et al. (Meusel, Jager, Weinert, 1965; Meusel, Jager, 1992) demonstrated that in the latitudinal spectrum of chorological groups the temperate-submeridional species (26,4 %) prevail. This is typical for the flatland temperate latitude floras of Holarctic region. The species of Euroasian group with European and circumpolar ranges, mostly distributed in the temperate  and boreal zones, predominate in the spectrum of regional chorological groups. Cosmopolite species play minor role in the studied flora. Estimated by oceanic-continental ratio, the species of Euryoceanic and indifferent groups prevail. In general, correlation between oceanic and continental climate types of ranges confirms intermediate character of the flora of the Park. Thus, the proportion of the range groups in this flora reflects common structural characters of forest-steppe of Central European floras.

Keywords: Biloozersky National Nature Park, flora, georaphic structure, species, area

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