There were problems in the reproduction of some figures in both the original version of this article (Annals of Botany 100: 1491–1505, 2007) and a subsequent version reprinted in Annals of Botany 101: 483, 2008. The entire article is reproduced here with the original page numbers and can be accessed free of charge at www.aob.oxfordjournals.org. The publishers would like to apologize for these p...

Carpolobia lutea leaves (CLL) (Polygalaceae) were earlier screened and the antiulcer ethnomedicinal claim established. This article seeks to quantitatively isolate, elucidate the active compounds from most active CLL fraction. Fractionation was by semi-preparative HPLC; the active fraction was subjected to radical scavenging assays (RSA) and quantification of the total phenolic content (TPC) we...