Abstract
The aim of this work was to study of diagnostic signs of the morphological and anatomical structure of Veronica crista-galli Steven. from the flora of Azerbaijan.
 Materials and methods. The samples for research were collected during their flowering time in June 2018, in the Ismailli region of the Republic of Azerbaijan. Plant samples were fixed in a solution made in 0.1 M phosphate buffer (pH=7.4), containing 2.5 % glutar-aldehyde, 2.5 % paraformal-aldehyde and 0.1 % picric acid. In the next stage was the preparation of block and their filling in Araldite – Epon according to the TEM method.
 Results. The leaf is simple, lower part is short-petiolate and upper is sessile. The surface, on both sides of the leaf, is reliefly, and 7–8 conductive veins are clearly visible. The lower and upper sides of the leaf, and also margin, are strewn with multicellular hairs. The calyx of the flower consists of two sepals which grown together at the base, covered with simple multicellular hairs. The stalk in is a long filiform. The corolla of flower consists of 4 petals which grown together at the base and 2 stamens attached to the tube of the corolla. On the epidermis, cells with sinuous and bead-like walls, numerous stomata of the stavrocytic type, capitate hairs are visible. From the cross section of the leaf, it is visible that palisade tissue at the upper and sponge tissue at the bottom.
 Conclusions. As a result of morphological and anatomical studies, it was revealed that diagnostic signs of plant raw material can be: Present of multicellular hairs on the leaf blade; The location of the capsule between the sepals; Stavrocytic type of the stoma structure; The bead-like walls of the epidermis; Capitate hairs on the epidermis; Sepals covered by hairs.
 The established anatomical diagnostic features can be used for the drafting of the normative document on the plant raw materials and for identification of plant raw material of Veronica crista-galli
Highlights
Medicinal Plants and Herbal Medicines are widely practiced in modern medicine, and phyto-drugs basis nearly 40 percent of the pharmaceutical industry
This study aimed to investigate the phytochemical researches of aerial parts of relevant Veronica species harvested from the Azerbaijan spontaneous flora [9, 10] and as a result of which prospective species have been identified for replenishing the arsenal of medicinal plants
The calyx of the flower consists of two sepals which grown together at the base, covered with simple multicellular hairs
Summary
Medicinal Plants and Herbal Medicines are widely practiced in modern medicine, and phyto-drugs basis nearly 40 percent of the pharmaceutical industry. Searching for different and new types of medicinal plants, raw materials and their uses is an urgent task of pharmaceutical science. The Azerbaijan has a varied and rich vegetation cover. More than 4,000 species of plants in Azerbaijan, and it is necessary that 135 species of these are officially recognized as medicinal plants [1]. One of the insufficiently explored genus of the domestic flora is Veronica L. The plants from this genus are used for the treatment of various inflammatory diseases include including rheumatism, hepatitis, cholecystitis and urticaria, for the treatment of lung diseases, for the treatment of various diseases [3, 6]
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