01967nas a2200217 4500008004100000245007900041210006900120260001500189300001200204490000700216520136600223653001101589653001301600653001501613653001801628653000801646100001901654700002301673700001801696856003501714 2018 eng d00aPharmacognostical Evaluation of Rhododendron arboreum Sm. from Uttarakhand0 aPharmacognostical Evaluation of Rhododendron arboreum Sm from Ut cMarch 2018 a527-5320 v103 a

Objective: Rhododendron arboreum Sm. commonly known as Burans is an important plant of the Himalayan region. It is the national flower of Nepal and state tree of Uttarakhand. The present study pertains to the pharmacognostical evaluation of R. arboreum from Uttarakhand. Methods: Macroscopy, microscopy by free hand section cutting and with the help of scanning electron microscopy (SEM) were done along with the physicochemical analysis. Preliminary phytochemical studies and fluorescence analysis was also carried out. Results: Results revealed that the leaves contain paracytic or amphiparacytic stomata in cluster form. The epidermal cells were long and spongy. The cells also contain some grooves and papillae throughout the surface. Preliminary phytochemical analysis showed the presence of different secondary metabolites like alkaloids carbohydrates, phenols, proteins, saponins, and tannins. Conclusion: R. arboreum from Uttarakhand region was investigated for its morphological and cytological characteristics with the help of scanning electron microscopy for the first time. The results provide details on the presence of several specific characters which are important for the identification of the genuine crude drug.

10aBurans10aHimalaya10amicroscopy10aPhytochemical10aSEM1 aTewari, Devesh1 aSah, Archana, Negi1 aBawari, Sweta uhttp://fulltxt.org/article/519