Comparative Morphological and Anatomical Research of Leaves 6 Sorts of Laurels Noble (Laurus Nobilis L.), Growing in the Conditions of an Introduction in the Nikitsky Botanical Garden

This research is a fragment of complex studying of grades of laurels of the noble, growing in the territory of botanical gardens of Pyatigorsk medical and pharmaceutical institute and the Nikitsky botanical garden which is carried out based on department of botany and a pharmacognosy of the Pyatigorsk medical and pharmaceutical institute. Introduction: Research objective is to conduct a comparative morphological and anatomical research of leaves of 6 sorts of Laurus nobilis. Material and Methods: The exemplars of leaves of 6 grades of laurels noble, growing in the territory of the Nikitsky botanical garden (the settlement of Nikita, Crimea republic). When carrying out comparative morphometric, micromorphological, histochemical methods. Results: The comparative morphometric research of a leaf plate is conducted, at the same time the form of a leaf plate, character of a top, basis and margined of a leaf plate were estimated. In the analysis of features of a micromorphological structure carried out the analysis of an anatomic structure of scapes of leaves and a structure of a transversal cut of a sheet plate, a top and bottom epidermal of a sheet plate. The form of the cross- section of the petiole is horseshoe-shaped, dredging is absent or falciform with the expressed dredging, rounded triangular form, dredging is absent. The presence or absence of coverage trichomes, the presence only at the top party of a scape and it is presented by individual monocelled lengthiest hairs, is presented by a small amount of individual, monocelled small hairs on the top party of a petiole it is presented by individual monocelled small hairs. Existence and arrangement of a resin ducts are presented in big quantity, especially there is a lot of around a phloem part of a vascular bundle or the ducts are presented in a great many, there is a lot of them, both around a phloem part of a vascular bundle, and under epidermis. Existence and arrangement of a sclerenchyme –around the vascular bundle from two parties or it is presented by groups of fibers around the vascular bundle or absent. Conclusion: As for an anatomic structure of an epidermis of a leaf plate, differences in a histological structure of an epidermis of the studied grades of laurels noble it is not revealed. The following signs are characteristic of all studied exemplars: leaf plate of hypostomatic type. Stomates are present only at the lower part of an epidermis. The stomatal type is anomocytic. Epidermal cages of the lower epidermis have the extended form with sinuous anticlinal walls. Anticlinal walls of the main cages of the top epidermis have the reference uniform thickenings In the analysis of features of a micromorphological structure carried out the analysis of an anatomic structure of scapes of leaves and a structure of a transversal cut of a sheet plate, a top and bottom epidermal of a sheet plate.