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

peer reviewedThe microstructural characteristics of the vegetative and generating organs of the medicinal plant Allium saxatile Bieb. has been studied, using Carl Zeiss, Jeneval light microscope, and Omax stereoscopic microscope. The leaves of A. saxatile are bare and have a toothed edge. Mesophyll of the leave is characterized by an isolateral structure. leaf-covering tissue is sharply cutinized, and the cell membrane of the single-rowed epidermal tissue is strongly thickened. The stem is bare, the protective tissue is actively cutinized, the epidermis is in a single layer, and its cells are characterized by a square shape and have a strong thickening of the outer periclinal walls. The vascular bundle is represented with a group layout of lumens of large and small-caliber conductive vessels of an oval and weakly angular shape. The thickening of the shell of the vascular bundle is predominantly spiral. The inflorescence is round, with a frequent flower umbrella. The perianth is egg-bellish, its cover is free, elongated, pointed in shape, and pale pink in color. Filaments are longer than flowers of the perianth. The bulb is free, surrounded by an elongated-conical shape, brownish coloring, and dried, leathery shell. The root of have the shape of a sphere, covering the tissue of the root – exoderm has a double row of cells and is represented by thin-skinned smaller size and large, square-shaped cells

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

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