STUDIES IN THE CLASSIFICATION AND NOMENCLA- 

 TURE OF THE BACTERIA 



VII. THE SUBGROUPS AND GENERA OF THE 

 CHLAMYDOBACTERIALES 



R. E. BUCHANAN 

 From the Bacteriological laboratories, Iowa State College, Ames, la. 



Received for publication Oct. 22, 1916 



Order II. Chlamydobacteriales. ordo nov. 



Synonyms : 



Cladotrichiae Trevisan, 1879, p. 15 

 Cladotricheen Zopf, 1883, p. 45 

 Cladothrichacei Schroeter, 1886, p. 173 

 Cladothricheae Hueppe, 1886, p. 140 

 Leptotrichacei Schroeter, 1886, p. 170 

 Crenotricheae DeToni and Trevisan, 1889, p. 925 

 Chlamydobacteriaceae Migula, 1894, p. 237 

 Desmobacteriaceae Benecke, 1912, p. 188 in part 

 Phycohacteriales Engler 



Filamentous bacteria, alga-like, typically water forms, frequently 

 sheathed, without true branching although false branching may be 

 present. The sheath is frequently impregnated with iron. Co- 

 nidia may be developed, but never endospores. Sulphur granules 

 or bacteriopurpurin never present. Mature cells or filaments not 

 motile, not protozoan-like. 



The order contains a single family Chlamydobacteriaceae. 



Family I. Chlamydobacteriaceae Migula, 1894, p. 237 



The following genera have been included in the family by 

 various authors: 



301 



