The Mitragyna Species of Asia

Abstract

Part XVJI. The anatomy of the leaves of Mitragyna javanica var. microphylla By M a r g a r e t D. W a l k e r a n d s a j i d a J. A h m a d In Part VIII ( S h e l l a r d , B e c k e t t , T a n t i v a t a n a , P h i l l i p s o n and L e e , 1967) an account was given of the alkaloidal content of the leaves of Mitragyna javanica var. microphylla K o o r d. and V a 1 e t o n. No previous anatomical investigation of this plant appears to have been made. MaterialsThe leaves and flowering tops Mitragyna javanica var. microphylla K o o r d. and V a l e t o n were obtained from Thailand during 1963, 1964 and 1965. They were authenticated by Mr. B a m r u n g T a n t i s e w i e ,