Alkaloids of Shepherdiaargentea and Shepherdiacanadensis

Alkaloids of <i>Shepherdia</i><i>argentea</i> and <i>Shepherdia</i><i>canadensis</i> New alkaloids from Banisteriopsis caapi A tetrahydroprotoberberine alkaloid from Croton hemiargyreus New Spermine Alkaloids from Aphelandra tetragona (V<scp>AHL</scp>) N<scp>EES</scp> New Spermine Alkaloids from <i>Aphelandra tetragona</i> (V<scp>AHL</scp>) N<scp>EES</scp> Alkaloids of Schelhammera pedunculata (Liliaceae). III. The structures of schelhammericine and alkaloids A, B, E, G, H, J, and K Canadinic Acid: An Alkaloid from<i>Hydrastis canadensis</i> An oxamide from Peganum harmala seeds Isolation and Identification of Lysergic Acid Amide and Isolysergic Acid Amide as the Principal Ergoline Alkaloids in Argyreia nervosa, a Tropical Wood Rose Alkaloids of the Australian Leguminosae. VII. Nb-Methyltetrahydroharman from Acacia complanata A. Cunn. ex Benth