Veldsman, D.P.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1952)
Leaves and stems of the plant, Pachystigma pygmaeum (gousiektebossie),
collected at Kaalfontein on 20th October, 1950, were subjected to a chemical
investigation.
Four crystalline substances were isolated: a lactone, ...