Abstract
Rauwolfia serpentine Benth. ex Kruz. is a tropical plant of family Apocynaceae and distributed throughout the various regions of India. It is herb of medicinal importance and finds its application in Ayurveda. In the present investigation an attempt was made to study the distinguishing micro characters of various organs of plant and histochemical localization of various substances viz., calcium oxalate, lignin, suberin, lipids etc. The salient anatomical features are useful in solving taxonomic problems and have importance in identification of crude drugs from this taxon.