№1, 2021
Comparative anatomical and micromorphological analysis of the species Salvia verticillata L. and S. glutinosa L.
Summary
Taking into account the medicinal and aromatic properties of the genus Salvia (Lamiaceae) and the richness of the species in the flora of Azerbaijan, the anatomical and micromorphological features of the species S. glutinosa and S. verticillata were analyzed comparatively. Anatomical sections taken from the collected plant samples as well as the structures of cells and hairs were examined under a light microscope. As a result of anatomical studies, the cell structures of both species are similar, but some differences in cell numbers, sizes, and tubes have been identified. Micromorphological electron microscopy of trichomes in leaves and hazelnuts was studied using a scanning electron microscope. According to these studies, S. glutinosa. has short, one- to two-celled glands and one- to seven-celled hairs on the plant. However, glandular hairs belong to the II and III types of capillary hairs, non-glandular hairs are related to type I (needle-shaped). Both nonglandular and glandular hairs are observed on S. verticillata. The glandular hairs are variable in different parts of the plant. In the part of a trunk, these are characterized by type III, while in the leaf part they are defined as spherical type I capillary hairs. Moreover, peltate glandular hairs with a round multicellular secretory head are also found here. Non-glandular hairs of this species are the I and III (needle-shaped and articular) type hairs. Differences in the anatomical structures are important for intraspecific taxonomy. Nutlet samples of both species represent various structures in their surface textures. The specimens of S. glutinosa belong to the prolate (P) type. The surface of the nutlets is relatively smooth and reticular. In the S. verticillata nutlet samples also refer to the prolate (P) type. However, the surface texture of this species’s nutlets is verticulate, and is in the form of irregularly arranged knobs.