Georgian Scientists/ . 4  N 3, 2022 281

Georgian Scientists

Vol. 4  Issue 4, 2022

https://doi.org/10.52340/gs.2022.04.04.32

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[1] Allium L. in GBIF Secretariat (2021). GBIF Backbone Taxonomy. Checklist dataset
https://doi.org/10.15468/39omei accessed via GBIF.org

[2] R. Gagnidze, Vascular Plants of Georgia a nomenclatural Checklist, Institute of Botany. Tbilisi,
Republic of Georgia, 2005.



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[3]  -  .XVI, 2011, .192

[4]  .  – .II,   1940; .118

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Microstructural features of generative and vegetative organs of Allium ponticum growing in Georgia

Giorgi Jgerenaia1; Ketevan Mchedlidze2; Michel Frederich3; Lasha Mskhiladze1

1 Department of Pharmacognosy, Direction of Pharmacognosy and pharmaceutical Botany, Tbilisi State Medical
University. Tbilisi, Georgia

2 Direction of Pharmaco-botany, Iovel Kutateladze Institute of Pharmacochemistry, Tbilisi State Medical University.
Tbilisi, Georgia

3 Laboratory of Pharmacognosy, Department of Pharmacy, Centre Center for Interdisciplinary Research on Medicines-
CIRM, University of Liège, Liège, Belgium

ABSTRACT

The aim of the study is to determine diagnostic characteristics based on the study of the macro- and
microstructural characteristics of the generating and vegetative organs of Allium ponticum Micscz ex
Grossh.

Bilateral epidermis of leaves of A. ponticum has identical structure. Paracytic type of stomatas are
concentrated on the narrowed edge of cells of leaf epidermis. Vascular bundle of collateral type. The
protective tissue of the stem is cutinized, the epidermis is one-line, the outer periclinary wall of
epidermal  cells  is  powerfully  thickened.  In  the  epidermis,  slightly  submerged  stomatas  are
differentiated. The leaf is abundantly equipped with collateral-type vascular bundle of different
diameters. The flower is a round, hemisphere, frequent-flowered umbrella. Basal cells of the epidermis
of the filament are characterized by straight or indirect tilt of elongated, linear periclinal walls. The
bulb is well developed, free. It is spherical-oval in shape, its shell is almost leathery. On the panorama
of the texture of the cross section of the bulb, in the basipetal direction, tendency of differentiation of
fibrous root system is manifested.

Keywords: Allium ponticum; Allium; Microstructure;