STUDIES IN THE NOMENCLATURE AND CLASSIFI- 

 CATION OF THE BACTERIA 



V. SUBGROUPS AND GENERA OF THE BACTERIACEAE 



R. E. BUCHANAN 



From the Bacteriological Laboratories of Iowa State College, Ames, Iowa 



Received for publication October 22, 1916 



Family II. Bacteriaceae Cohn, 1872a, p. 237 



Synonyms : 



Bacterina Perty, 1852, p. 159 

 Microbacteria Cohn, 1872, p. 167 

 Desmobacteria Cohn, 1872, p. 173 

 Bacteriaceen Zopf, 1883, p. 45 

 Baculogenae Trevisan, 1885, p. 92 

 Bacteriacei Schroeter, 1886, p. 155 

 Bakteriaceen Hueppe, 1886, p. 142 

 Arthrobakteriaceen Hueppe, 1886, p. 149 

 Bacteriacees Cornil and Babes, 1890, p. 151 

 Bacillaceae Fischer, 1895, p, 139 

 Bacillacei Fischer, 1895, p. 139. 



Cells rod-shaped, straight, or at least not spherical or spiral. 

 Never containing sulphur granules, nor with bacterio-purpunn, 

 many species pigmented. May or may not be motile by polar or 

 diffuse flagella. Cells may be single or in chains. Endospores 

 produced in some genera, not in others. A pseudoplasmodium 

 never developed. Growth energy not secured by the oxidation oj 

 ammonia or nitrites. 



The following names hav^e been used for subdivisions of Bac- 

 teriaceae as here defined: 



Bacterieae Trevisan, 1879, p. 136 

 Eubacterieae Trevisan, 1879, p. 136 



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