Anatomical features of some Jordania Boiss. taxa in the Caryophylleae (Caryophyllaceae) family

This study aims to provide a detailed anatomical investigation of root, stem, and leaf structures in taxa belonging to the genus Jordania. Cross-sections of different species were analyzed to compare their anatomical characteristics. The findings reveal that the root tissues exhibit well-developed vascular structures with open collateral vascular bundles. The stem sections are characterized by dense trichomes, with the cuticle of covering trichomes showing silicification. The endodermis layer consists of a single row of cells containing abundant druse crystals. A wide pith region with large, transparent pith cells is observed at the center of the stem. The leaves are amphistomatic with an equifacial mesophyll structure. The vascular bundles in the leaves are collateral, and numerous druse crystals are found above the sclerenchyma cluster. These anatomical features support the differentiation of Jordania taxa and contribute to their taxonomic classification.