De Waal, H.L.; Pretorius, T.P.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
(1) Senecio sceleratus sp. nov. 'Schweickerdt is an extremely toxic Senecio
species. It contains at least three more or less toxic alkaloids, viz., isatidine,
retrorsine and a new alkaloid, sceleratine,
(2) Sceleratine, ...