In the PMR spectrum taken in CDCI~ signals were observed from a methoxy group at (ppm) 3.75 (3H, s), from a methylenedioxy group at 5.98 (2H, s), from methylene protons at 3.00 (2H, t) and 4.30 (2H, t), each with J = 7 Hz, and from six aromatic protons at 6.12 (IH, d, J = 8.5 Hz), 7.13 (IH, d, J = 8.5 Hz, 6.77 (IH, s), 7.12 (IH, s), 7.47 (IH, s), and 9.11 (IH, s). When (II) was reduced with NaBH 4 in methanolic solution, a crystalline base was obtained with mp 179-180°C, M+325, whichwas identified as (±)-tetrahydroberberrubine. From the facts given above, base (II) was identified as berberrubine [i0].Thus, from young shoots of B. iliensis Pop., together with bases known previously, we have isolated magnoflorine, obaberine, berbamunine, N-methylcoclaurine, and berberrubine, and also (+)-$-N-methylcorypalmine, which is a new alkaloid, found in Nature for the first time.