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The purpose of the present research was to study the peculiarities of the anatomical structure of some vegetative and genesic organs of Crataegus ambigua C.A.Mey. growing in the territory of Mangistau region. The findings of investigation allowed determining that the annual sprouts and pedicel of this species have a primary anatomical structure with the transition to secondary growth. Leaf of the Crataegus ambigua is of a dorsoventral type of light mesophytic structure, hypostomatic in terms of stomata arrangement. The fetal epidermis is presented by polygonal cells of the epidermis without additional elements. The pulp consists of large and loosely-arranged parenchymal cells. The epidermis of the corolla is represented by oval thick-walled cells. The pericarp of the seed consists of three well-defined layers (exocarp, mesocarp and endocarp). The corcule occupies the entire internal cavity. In terms of the cover and pulp structure, Crataegus ambigua has a structure similar to other species. Characteristic features for this species are the shape and the arrangement of the main cells of the epidermis, stomata and simple unicellular trichomes.

Anatomical Structure Study of Aerial Organs of Crataegus ambigua C.A.Mey