Abstract:
The pharmacognostic profile of crude drug has a key role in standardization for
quality, purity and drug identification. The present study deals with pharmacognostic
evaluation of aerial part of Chamaecyparis lawsoniana (Murr.) Parl. a drug used in
homoeopathic system of medicine for diverse clinical uses such as terrible pain in
stomach, tumors, keloid, warts and lipoma of thigh. The study includes collection,
identification, macroscopy, microscopy and organoleptic characteristics of aerial part of
Chamaecyparis lawsoniana. Anatomically the leaf is distinguishable into a layer of the
epidermis followed by parenchymatous mesophyll and resin duct in the parenchymatous
cortex. Powder microscopy shows the presence of epidermal cells, parenchymatous
cells and tracheids. These observations may be used as pharmacopoeial standards for
identification of Chamaecyparis lawsoniana.
