Anatomy of Paliurus spina-christi Mill. (Blackthorn) (Rhamnaceae)

Abstract

Objective: This investigation aimed to explore the anatomical structures of the stem, leaf, petiole, petal, and fruit of Paliurus spina-christi. Methods: Plant specimens were collected from Uzundere/Erzurum (Turkey) in June 2016. Subsequently, standard herbarium techniques were employed to dry and preserve the samples stored at the Herbarium of Atatürk University, Biodiversity Application and Research Center. For anatomical analysis, the materials were preserved in 70% alcohol. Characteristic elements of these plant parts were identified through sectioning, and their structures were visually documented with photographs. Results: The leaf is bifacial, with stomata located in the lower epidermis. Abundant cluster crystals of calcium oxalate, very dense, and unicellular trichome (only stem, leaf, petiole) were shown in stem, leaf, petiole, and petal. Lignified structures were observed in the samara fruits pericarp. Conclusion: This research thoroughly delineates the anatomical characteristics of P. spina-christi. The findings derived from this investigation imply that the observed anatomical variations could have valuable implications for taxonomic classification.

Keywords

• Anatomy
• Paliurus spina-christi
• Rhamnaceae

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