"Providencia inconstans" (Ornstein 1920) Ewing 1958 Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Gammaproteobacteria order Enterobacterales family Morganellaceae genus Proteus species Proteus inconstans Name Homonyms Providencia inconstans "Providencia inconstans" (Ornstein 1920) Ewing 1958