"Bacillus chroococcus" Buchanan 1925 Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Gammaproteobacteria order Pseudomonadales family Pseudomonadaceae genus Azotobacter species Azotobacter chroococcum Name Homonyms "Bacillus chroococcus" Buchanan 1925 Bacillus chroococcus