Separation of the basic fractions from Formosan Fissistigma glaucescens, F. oldhamii and Goniothalamus amuyon afforded one new quaternary phenanthrene alkaloid, N-methylatherosperminium (15), along with the known alkaloids, (-)-discretamine (1), (-)-tetrahydropalmatine (2), palmatine (3), (-)-asimilobine (4), (-)-norannuradhapurine (5), (-)-crebanine (6), (-)-calycinine (fissoldine, fissistigine A) (7a), (-)-anolobine (8), (-)-xylopine (9), (-)-anonaine (10a), oxocrebanine (11), liriodenine (12), atherosperminine (13), N-noratherosperminine (14) and (+)-O-methylflavinantine (O-methylpallidine) (16). © 1985.