Nodulation in Legumes is a comprehensive evaluation of the major changes in taxonomy of both Leguminosae and rhizobia, with significant insights into the evolution and genetic structure of legumes and rhizobia and how these interact to give a variety of forms of functional nodules. Nitrogen fixation in ecological terms is explored and the author discusses how legumes have adapted to life in harsh environments.Comprehensive evaluation of the major changes in taxonomy of both Leguminosae and rhizobia.