Two new bufadienolides, 11 alpha-acetylgamabufotalin 3-O-(4-O-beta-D-glucosyl)-alpha-L-rhamnoside (1) and 11 alpha-hydroxyscilliglaucoside (2), were isolated from bulbs of hexaploid Urginea maritima and identified by means of FAB-MS, H-1-NMR and C-13-NMR studies. (C) 2000 Elsevier Science B.V. All rights reserved.