SYSTEMATIC AND DESCRIPTIVE, 



331 



formerly described as Leptothrix parasitica, or it" 

 coloured by impregnation with iron, as Leptothrix 



FIG. 128. CLADOTHRIX DICHOTOMA. 



A. Branching schizomycete : (a) Vibrio-form ; (b} Spirillum-form [slightly 



magnified]. 



B. A screw-form with (a) Spirillum-form ; (b) Vibrio-form. 



C. Long spirochaeta-form. 



D. Fragment with spirillum-form at one end. vibrio-form at the other. 



E. Screw-forms ; (a) continuous ; () composed of rods ; (V) composed of 



cocci. 



F. Spirochseta-form : (a) continuous ; (b} composed of long rods ; (c) short 



rods ; (d) cocci. [After Zopf.] 



ochracea. Later they form false branches by 

 single rods turning aside, which by repeated 



