Steroidal sapogenins. XXV. Survey of plants for steroidal sapogenins and other constituents.

TLDR: The chemical examination of the fourth 1,000 accessions in a survey of plants for steroidal sapogenins is a continuation of the reports on the first three reports, with no previously published chemical information on about 50 per cent of the species examined.

Abstract: This is a report of the chemical examination of the fourth 1,000 accessions in a survey of plants for steroidal sapogenins and is thus a continuation of the reports on the first three 1,000 accessions (1-6). Data are given for 950 samples, representing 100 families, 272 genera, and 432 identified species. Of these, 14 families, 151 genera, and 376 species are new in this series. Quantitative data are given for the occurrence of 15 steroidal sapogenins, of which two, gentrogenin and correllogenin, are new. Qualitative data are given for the occurrence of these groups of constituents: saponins, flavonoids, alkaloids, tannins, and unsaturated sterols. There is no previously published chemical information on about 50 per cent of the species examined.