A novel aporphine alkaloid was isolated from dried stems and leaves of Cissampelos glaberrima. Spectroscopic analysis established the structure as 1,2-methylenedioxy-3-hydroxyaporphine, to which we have given the name cissaglaberrimine. Unambiguous H-1 and C-13 NMR data for magnoflorine and oxobuxifoline are described. Copyright (C) 1997 Elsevier Science Ltd.