Structural Features of Vegetative Organs of Some Endemic Species of the Genus Juno Tratt. (Iridaceae) in the Tashkent Botanical Garden (Uzbekistan)

Nargiza Rakhimova, Guljan Duschanova, Sodikjon Abdinazarov

Abstract: Three Juno spp. were studied in this anatomical research J. orchioides Carriere, J. svetlanae (Vved. ) F. O. Khass. and J. magnifica (Vved. ) F. O. Khass. & N. Rakhimova). The structures of vegetative organs (leaf, leafs vagina, and stem) were analysed and following features were recognized as diagnostic the spongy type of the leaf mesophyll, submerged stomata of anomocytic type, absence of stomata on the adaxial side, parenchymal-bundle type of the vagina, presence of large, elongated epidermis only on the adaxial side, and only on abaxial side of the vagina leaf, closed, collateral type of vascular bundles, bundle type parenchyma in the stem, primary cortex separated from the central cylinder by a ring of lignified cells (sclerenchyma). These structural features are characteristic for genus Juno and can serve to identify these species.

Keywords: anatomy, leave, leafs vagina, stem, Juno