Anatomical Structure of Aboveground and Underground Organs of the Rare Endemic Species <i>Iris (Juno) magnifica</i>vved., Growing under Natural Conditions of the Zeravshan Ridge, Samarkand Mountains

The morpho-anatomical structure of the aboveground and underground organs of the rare endemic species Iris (Juno) magnifica, growing under natural conditions of the Zeravshan ridge, Samarkand mountains, has been studied for the first time. A comparative analysis of the morpho-anatomical structure of the aboveground and underground organs revealed characteristic diagnostic signs of a microscopic structure. The complex of anatomical features of the aboveground and underground organs of the studied species are species-specific and can be used to solve taxonomic problems of this genus of plants, as well as the Red Book endemic species of juno irises, are of particular interest in connection with the potential for their vegetative reproduction.

Modern Condition of Coenopopulation of <i>Tulipa fosteriana W. Irving</i>in Southern Part of Uzbekistan

This article reveals the data about two coenopopulation of Tulipa fosteriana in Zeravshan mountain ridge in the vicinity of the Takhta-Karachi pass in the border of Kashkadarya basin. Thus, the studied coenopopulation of T. fosteriana is normal, incomplete. The absence of senile individuals in the examined coenopopulation is associated with the biological characteristic of the species. In tulips, as in many geophytes, most individuals completely finish their large life cycles in a generative state. The ontogenetic spectra of the studied coenopopulation coincide with the characteristic ones, and thereby reflect the biological characteristics of the species.