Fig. 61. a. Rhodospirillum ruhrum, Hopkins Marine Station ATR 1.1.1. 

 Tufts of flagella at one or both poles. Flagella rarely have more than one 

 curve. From E. Leifson, /. Bacteriol. 62, 377-389 (1951). 



Fig. 62. a. Nocardia sp., Orskov. Peri- 

 trichous flagella with irregular waves. Most 

 flagellated individuals in the culture had 

 only one or two flagella. 



147 



