Abstract
In this study, the anatomical features of some taxa (Origanum sipyleum, Satureja parnassica subsp. sipylea, Sideritis sipylea, Thymus sipyleus subsp. sipyleus var. sipyleus) belonging to the Lamiaceae distributed on the Spil Mountain of Turkey were compared statistically. Lamiaceae family to which the investigated taxa belong are of high importance for their antioxidant potential, multiple pharmaceuticaluses in folk medicine. The some anatomical features of the stem were selected and measurements were taken. The data obtained from the anatomical features were evaluated statistically. By this study it has been determined that cortex length and diameter of pith are the best character pairs which represent the variations in them. Thus, the cortex length and diameter of pith can be viewed as a taxonomic character for classification of species. The results showed that investigated taxa also could be distinguished from each other not only by their morphological features but numerical anatomical characters as well.
Highlights
Spil Mountain which is the natural distribution area of the studied taxa, is located west of Turkey starts from the 60 m level of the Gediz River plain and reaches a height of 1517 meters
Lamiaceae family to which the taxa belong are of high importance for their antioxidant potential, multiple pharmaceutical uses in folk medicine, and commercial essential oils as well as their wide cosmetic and culinary applications
Anatomical findings: Origanum sipyleum: The stem cross-section is in the form of a protruding circle or it has squared similar to round shape
Summary
Spil Mountain which is the natural distribution area of the studied taxa, is located west of Turkey starts from the 60 m level of the Gediz River plain and reaches a height of 1517 meters. Lamiaceae family to which the taxa belong are of high importance for their antioxidant potential, multiple pharmaceutical uses in folk medicine, and commercial essential oils as well as their wide cosmetic and culinary applications. The genus Origanum, as an important ethnomedicinal plant, is found in the Mediterranean region, North Africa, and Eurasia (Loizzo et al, 2009). The genus Satureja including about 200 species mainly grows in West Asia, Middle East, Europe, North Africa, Mediterranean region, and South America. Sideritis L. comprises more than 150 annual and perennial species and subspecies worldwide (Gonzalez et al, 2011) and most of them are to be found as wild-growing plants in countries around the Mediterranean Basin and the Caspian Sea (Barber et al, 2002); many among them are confined to small geographical areas being exclusive endemics either to single islands (e.g. Crete, Greece; Canary islands, Spain), single countries (e.g. Spain, Morocco, Italy, Greece, Turkey etc.) or a couple of adjacent countries e.g. Balkans or Greece, and Turkey (Charalampia-Kloukina et al, 2020). The Mediterranean region can be described as the center of the genus (Vouillamoz and Christ, 2020)
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