Partial Update: 2 May 2013
This page lists all of the current validly-published binomial names for the rhizobia, which currently consists of 98 species in 13 genera.
Updated 27 April 2013
This page lists bacteria that could be confused with 'true' rhizobia, such as non-nodulating Rhizobium species, and invalid names.
Updated 19th July 2008