The alkaloids dictamnine, skimmianine, folimine, robustinine, and 4-methoxy-2-quinolone, found for the first time in plants of the genus Haplophyllum and the new alkaloid haplobungine, for which the structure of 4,7,8-trimethoxy-2-quinolone has been established, have been isolated from the epigeal part of the plant Haplophyllum bungei Trautv. growing in the Moiynkumy desert, Chimkent province, Kazakh SSR. © 1989 Plenum Publishing Corporation.