Microscopical analysis of Monarda Fistulosa L. herb
Microscopical characteristic of plants is important for identification of medicinal plant material and establishing parameters of its quality. Determination of diagnostic anatomical features of Monarda fistulosa L. aerial part as non-officinal medicinal plant is relevant task of pharmaceutical science and practice.
The purpose of this study was microscopical investigation and establishing of anatomical features of Monarda fistulosa (Lamiaceae) herb. Aerial parts of plant was collected during the flowering period under the culturing in the West Podilla.
The complex of diagnostic anatomical features of Monarda fistulosa herb was found for first time. It provides the identification of plant material and prevents the contaminant with the other herbs. The middle zone of stem is quadrangular and the bottom zone is almost round; the vascular bundles of ribs have horseshoe shape. Anatomical structure of leaf is dorsoventral, hypostomatic. Epidermis of both leaf sides has the peltate glands consisting of 14–18 radially placed tight cells with dark content; their main feature is the immersion in leaf blade. It has the diacytic type of stomata which are localized only in the lower epidermis of leaf. Besides the essential oil glands the epidermis includes also the capitate glandular hairs and simple trichomes. Epidermis of corolla is velvet covered with the papillae; essential oil glands of calix are located on the multicellular outlet. The filaments of stamen are glandular-pubescent; the pollen grains are spherical, with six pores.
The obtained data can be useful during the standardization of Monarda fistulosa herb as a promising medicinal plant material.
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