Diagnostic traits of medicinal herbal raw material of species of Thymus genus

The paper presents the peculiarities of morphological-anatomical structure organs, which are diagnostic traits herbal raw materials (HRM) commonest species Thymus L. genus in moderate climatic zone. We determined that studied develop a subshrub life form, grows monopodially Th. pulegioides and marschallianus, sympodially with mono-, di- polycyclic types monocarpic shoots serpyllum. Inflorescence is thyrsoid type opposite partial inflorescences, constituents simple dichasia monochasia. Macroscopic microscopic features HRM pubescence on stem, leaves flowers, anatomical was 20 µm thick transversal sections using light microscope. In pulegioides, stems tetrahedral, pubescent ribs unicellular two-cellular elbow-shaped hairs. Leaves ovoid, covered by multiangular epidermis bears diacytic stromas, sharpened capitate hairs 10–12 cellular essential oil glandules. poorly rounded, entire surface. elliptic, cells elongated, significantly tortuous, glandules, serpyllum, cylindric, all round. elongated-elliptic, oval, stromas diacytic, glandules 8–10 cellular, number papilla-like low. petioles lamina base sides short, coned elbow-shaped, 2–3 hairs, among there long, 4–8 hairs; serpyllum multicellular, interrupted. mesophyll, schizogenous reservoirs. marschallianus pulegioídes, calyx campanulate, bilabiate, pubescent. flower corolla purple-violet, has tube outward bend, inside glandular fauces comprises long multiangular-shaped insignificantly wavy walls, ‒ rectangular walls. Cells rectangular, tortuous. Surface both cone-like three-cellular, interrupted also Epidermis multi-angular, tubes – narrow. obtained results may be used for diagnostics morphologically similar during their preparation.