Bacteria and Viruses 43 



Recommendation 6c. Sect. 1. Naming of Taxa 



RECOMMENDATION 6c. Avoid the use of the genitive and the adjectival 

 form of the same specific epithet to designate two different species of the 

 same genus. 



ANNOTATIONS 



Recommendation 6c. A specific epithet derived from the name of a 

 person or locahty may be a noun in the genitive or it may be con- 

 verted into an adjective by use of an appropriate ending. There is 

 a Bacillus pasteurii and a Clostridium pasteurianum. Should either 

 species be transferred to the other genus there would be some danger 

 of confusion. The two specific epithets beigelii and beigelianum have 

 been used for the same species in combination with different generic 

 names. In bacteriology a specific epithet is rarely in adjectival form 

 when derived from the name of a person. Conversely, specific epithets 

 from place names are rarely in the genitive. 



