Erowid References Database
Shellard EJ, Lees MD.
“The Mitragyna species of AsiaVThe anatomy of the leaves of Mitragyna speciosa Korth”.
Planta Med. 1965 Aug 16;13(3):280-90.
In Part IV (Beckett, Shellard and Tackie, 1965) an account was given of the isolation of mitragynine and speciofoline from the leaves of Mitragyna speciosa Korth.
No previous anatomical investigation of this plant appears to have been made.
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