Sapiro, M.L.; De Kock, G.v.d.W.
(Pretoria : The Government Printer, 1949)
1. Senecio bupleuroides contains the same two alkaloids as Senecio
retrorsus and Senecio isatideus, viz. retrorsine and isatidine.
2. The quantities of these alkaloids extractable from the dried plant,
collected in the ...