Strychnos ignatii P. Bergius (Loganiaceae) is used as a remedy for a number of ailments (1). Root and stem bark, twigs, leaves, seeds, and fruit pericarps have been studied for the presence of alkaloids (4). The previous investigations show a considerable variation in the alkaloid composition of the species. Isolation and characterisation of the alkaloids present in root and stem wood was the object of the present study. The major alkaloid of the root and stem wood of S. ignatii was strychnine. The minor tertiary alkaloids isolated and identified were pseudostrychnine, strychnine N-oxide, normelinonine B, isostrychnine, protostrychnine and lO-hydroxystrychnine — the last four being reported for the first time from this species. In the quaternary fraction, a number of alkaloids of both the macusine and mavacurine types were present, but only macusine B and O-methylmacusine B, obtained for the first time from the plant, were identified. The plant material was collected from Malaysia in 1973 and authenticated by Dr. N. G. Bisset. 500 g powdered root or stem wood were extracted following the method used by Angenot (5). The tertiary alkaloids were separated by a combination of CC and preparative TLC and the quaternary alkaloids by preparative TLC. The individual alkaloids were identified by comparison of their chromatographic properties, colour reactions, and UV, IR, NMR, and mass spectra with those of authentic samples available in the Laboratory. It has been reported previously (1) that three new angular dihydropyranocoumarins, peucedano-coumarin I, II, III, and a known coumarin, pteryxin, were isolated from the acetone extract of the Chinese crude drug "Bai-Hua Qian-Hu" belonging to the Q-II type (2). The present paper describes the isolation of five furanocoumarin and two simple coumarin glycosides, a saponin, and a sterol glycoside from the n-butanol fraction of the same material. The n-butanol-soluble fraction derived from a crude drug identified as "Bai-Hua Qian-Hu of the Q-II type", the root of Peucedanum praeruptorum Dunn. (Umbelliferae), was purified by chromatography on silica gel and Sephadex LH-20 column and HPLC (ODS) to yield four known linear-type furanocoumarin glycosides, nodakenin, decuroside IV, rutarin, isorutarin, and an angular-type furanocoumarin glycoside, apterin, two simple coumarin glycosides, skimmin and apiosylskimmin, which were each identical with authentic samples (3—7). The fraction freed from coumarin glycoside was purified by HPLC to yield 3-0 cL-L-arabinopyranosylhederagenin-28-0-3-gentiobioside, which was isolated previously from Zi-Hua Qian Hu, P. decursivum Maxim. (8), and 3-sitosterol-3-0-3-o-glucoside, respectively.