The composition of eight Acacia gum exudates from the series Gummiferae and Vulgares

An analytical study has been made of gum specimens from Acacia hebeclada, A. kirkii, A. newbrownii and A. reficiens (all of the series Gummiferae) and of Acacia erubescens, A.fleckii, A. mellifera ssp. mellifera and A. mellifera ssp. detinens (all of the series Vulgares). The data obtained give further support for the main chemotaxonomic differences between the Gummiferae and Vulgares species recorded previously. In addition, two of the species studied have exceptional features; the gum exudate from A. hebeclada contains 9.4% of nitrogen; that from A. erubescens contains 12% of glucose.