An investigation of the alkaloids of Delphinium macrocentrum from Mt. Kenya resulted in the isolation and identification of the principal components as the known bases browniine, delcosine, delcosine 14-acetate, deltatsine, methyllycaconitine, and hetisine 13-O-acetate plus three apparently previously undescribed compounds which have been named desacetylnudicauline, macrocentridine and macrocentrine, and for which structures were established. © 1989.