![Article Image](http://wjpst.com/uploads/editions/edition_image.jpg)
SCIENTIFIC METHODOLOGY FOR DESCRIPTION OF ROOT AND STEM RAW DRUG’S MACROMORPHOLOGY AND CYTOANATOMY
Pharmacognosy is a field in pharmaceutical sciences which has recently been gaining huge importance owing to provide help in correct identity of plants used as medicines. Recent increase in demand of medicinal plants has caused an urgent need to develop a systematic methodology for identification of correct botanical source macroscopically as well as microscopically. Organized drugs comprise of plant organs such as fruits, seeds, leaves, flowers, Root and stem. For systemic description of plant sample as macroscopically consists botanical source, family, habitat, use etc. Root and stem morphology includes their types, shape, size etc. The general cytoanatomy of root can be distinguished in to epidermis, cortex and vascular system while stem can be distinguished in to dermal system, ground tissue system and vascular system. Staining process can help to identify and differentiate the arrangement of various tissues and also the presence of secondary metabolites in the transverse section. Organoleptic evaluation of uniformed particle sized dried powder and its microscopic evaluation used for identification with reference to the same plant organ. The scientific pattern of describing the macromorphology and cytoanatomy can be helpful for initial standardization of the raw drugs.