Chapter I 



— 9 — 



Taxonomy 



used to designate certain members of the nocardia group of actinomy- 

 cetes. 



23. Streptomyces Waksman and Henrici (1943).— In order to sepa- 

 rate those aerobic and nonpathogenic actinomycetes which produce 

 aerial mycelium and which multiply by forming true conidia in chains, 

 from the anaerobic forms, on the one hand, and from the nonconidial 

 types and the single-spore types, on the other, this name was proposed. 

 The generic designation combines the first two names given to the 

 actinomycetes and which ha\'e been most commonly employed in micro- 



Table 1 : Typjs of actinomycetes recognized in 1894 (132): — 



biological literature, Stre/ptothrix and Actinomyces. This new name 

 obviates the need for using the name Stre-ptothrix, for reasons indicated 

 above, and reserves the designation Actinomyces for the true anaerobic 

 forms to which it was first applied. 



In addition to the above designations, various other generic names 

 have been used, at one time or another, to designate all the actinomy- 

 cetes or certain constituent groups. These include Actinococcus, Actino- 

 fhyta, Bollingera, Indiella, Indiellopsis, Microsiphonales, Microsforwm, 

 Oidium, and others. Either these names proved to be mere synonyms 

 or they could not be given serious consideration for various other rea- 

 sdns. 



