Part 10 contains a total of 19 scientific research papers, organised into 4 sections:-
- two introductory papers on the whole family
- seven papers on subfamily Caesalpinioideae, several of which integrate morphological and molecular data
- two papers on subfamily Mimosoideae which present new molecular data and discuss their results in the light of the current classification of subfamily Mimosoideae
- eight papers on the largest subfamily Papilionoideae, which address problems of phylogenetic relationships in different branches of this subfamily.