Summary: The National Collection of Type Cultures, in its list of species maintained, uses unorthodox classifications of the genera Bacterium and Staphylococcus. For convenience in cataloguing Bacterium is divided into groups representing coliforms, plant pathogens, non-fermenting species and paracolons; to these is added a miscellaneous group of organisms of uncertain taxonomic position. These subdivisions are not intended to constitute a valid classification.
Coagulase-positive staphylococci, irrespective of pigment, form the species pyogenes; coagulase-negative strains are subdivided according to the pigment produced.
AndrewesF.W., GordonM.H.1907; Report on the biological characters of the staphylococci pathogenic for man. 35th Ann. Rep. loc. Govt. Bd, Rep. med. Off. 1905–6. App. B 7 p. 543
EdwardsP.R., WestM.G., BrunerD.W.1947; Arizona group of paracolon bacteria: a new group of bacteria pathogenic for animals and probably also for man. Bull. no. 499.Ky Agric. Exp. Sta.
MilesA.A., WilliamsR.E.O., Clayton-CooperB.1944; The carriage of Staphylococcus (pyogenes) aureus in man and its relationship to wound infection. J. Path. Bact. 56:513
National Collection of Type Cultures1948List of Species Maintained in the National Collection of Type Cultures, Med. Res. Coun. Memo. 21 London: H.M. Stationery Office.;