Azospirillum Tarrand et al., 1979 emend. Falk et al., 1985 Dataset Catalogue of Life Rank GENUS Classification kingdom Bacteria phylum Proteobacteria class Alphaproteobacteria order Rhodospirillales family Rhodospirillaceae genus Azospirillum Name Homonyms Azospirillum Tarrand et al., 1979 emend. Falk et al., 1985