Collection of Begonia l. (Begoniaceae C. Agardh) Species at the M.M. Gryshko National Botanical Garden NAS of Ukraine

Belaeva Ya.V. Collection of Begonia l. (Begoniaceae C. Agardh) Species at the M.M. Gryshko National Botanical Garden NAS of Ukraine Based on the investigations, it was observed that the group long-metameristic begonia in a collection NBG is represented by 43 species. It was noticed that 12 species have shortmetameric thick shoots. The group of tuberous species is represented by 2 begonias. The comparative anatomical, morphological and micromorphological studies of the leaf structure and the leaf surface of Begonia species found a number of macroand micromorphological xeromorphic features. The key stages the of the Begonia genus collection in NBS National Academy of Sciences of Ukraine are highlighted; the sources of specimens entry to the collection are indicated. A taxonomic, ecological and biomorphological analyses of collection is conducted. The main research directions of Begonia species preservation under greenhouse conditions are determined.