Bielaieva Y. Аnatomical and morphological features and reproductive biology of Begonia L. (Begoniaceae C. Agardh) species under ex situ conservation

The dissertation is devoted to research of anatomical and morphological features and reproductive biology of the Begonia L. species under conditions of ex situ conservation. The results of the research reveal the existence of various reproductive strategies within Begonia L. genus under greenhouse conditions. In order to distinguish taxa at the species and section level the pollen grains structure and micromorphological peculiarities have been identified. The correlation between micromorphological features of the structure and the seed dispersion modes was established. According to the results of the begonia's leaves anatomical structure researches and the analysis of ecological and climatic conditions in the natural habitats the patterns of begonias' structural adaptations to the environmental conditions have been established.