Examination were made for alkaloids contained in Formosan Mahonia lomariifolia TAKEDA (Japanese name “Arisan-hiiraginanten”) and M. Morrisonensis TAKEDA (Japanese name “Niitaka-hiiraginanten”). It was thereby found that both plants contained the same tertiary and quaternary bases, as shown in Table I, and that there is some difference in the alkaloid present in these plants according to habitat, as indicated in Table II on comparison of Japanese, Formosan, and Indian Mahonia genus plants.
