BIO Web Conf.
Volume 24, 2020International Conferences “Plant Diversity: Status, Trends, Conservation Concept” 2020
|Number of page(s)||6|
|Published online||21 September 2020|
Sexual types of flowers morphology in Heracleum sibiricum (Apiaceae)
Moscow Pedagogical State University, 129164, Moscow, Kibalchicha str., 6, bldg. 3, Russia
* Corresponding author: vn. godin@mp gu. su
According to the structural features of Hecaleum sibiricum flowers, three sexual types of flowers are distinguished, bisexual, pistillate, and staminate. In pistillate flowers a reduction of androecium and its parts is observed, and a reduction of gynoecium, with the exception of stylopodium there is in staminate flowers. The three sexual types of flowers in a umbellet are significantly distinguished by their size that is decreased in the following row: bisexual – pistillate – staminate. The reasons of such changes are discussed.
© The Authors, published by EDP Sciences, 2020
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