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

Abstract

peer reviewedThe study aims to determine diagnostic characteristics based on the macro- and microstructural characteristics of the generating and vegetative organs of Allium ponticum Micscz ex Grossh. The bilateral epidermis of the leaves of A. ponticum has an identical structure. Paracytic-type stomata 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, and the outer periclinal wall of epidermal cells is powerfully thickened. In the epidermis, slightly submerged stomata are differentiated. The leaf is abundantly equipped with a 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 the straight or indirect tilt of elongated, linear periclinal walls. The bulb is well-developed and free. It is spherical-oval in shape, and its shell is almost leathery. On the panorama of the texture of the cross-section of the bulb, in the basipetal direction, the tendency of differentiation of the fibrous root system is manifested