no 



MORPHOLOGY AND CULTURE OF MICROORGANISMS 



similar to genus Micrococcus. The cells of this genus are motile, possessing one or 

 two long flagella. No endospores are produced in this genus. 



Genus : Flanosardna Migtjla. 



The cells are globular. Cell division takes place in three planes as in Sarcina. 

 Cells are motile, having only one flagellum on each. Cells usually remain united in 

 twos and in tetrads and seldom form packets as Sarcina. 



n. Family : Bacteriacese Migtjla. 



The cells are cylindrical in shape. They vary in length from short almost spher- 

 ical bodies to very long rods. Cell division takes place in one direction in a plane 



Fig. 86. — Chamydothrix hyalina Migula. {After Migula from Schmidt and Weiss.) 



perpendicular to the long axis of the cell. Some of the members of this family remain 

 attached together, forming threads, while others separate from each other soon after 

 fission. 



Genus : Bacterium Eerenberg. 



The cells are cylipdrical, of longer or shorter length. Threads are frequently 

 formed. The cells do not possess any organs of locomotion. Endospores are pro- 

 duced in some few species, but in the majority no such formation occurs. It is 

 possible that endospore formation occurs only under certain environmental con- 

 ditions. 



