EXERCISE 93. STREPTOTHRIX GROUP. 



263 



Streptothrix 'bovis (Harz) Chester. 



Synonyms. Actinomyces iovis Harz; Streptothrix aetino- 

 myees Rossi-Doeia; Oospora bovis Sauv. et Radais; ray fungus; 

 actinomyces. 



Explanatory. First described by Bollinger. It occurs in 

 actinomycosis or lumpy- jaw in cattle, hogs, horses and man. It 

 probably leads a saprophytic life on plants, etc. 



References. A. 361 ; C. 361 ; H. 349 ; K. & W. II, 861 ; L. & N. 

 440 ; M. & R. 287 ; McF. 371. 



MORPHOLOGICAX, CHARACTERS : 



Sketches. 



1. Form and arrangement: 

 a. Bouillon 



&. Agar . 



V. Gelatin 



d. Other media. . 



2. Size: 



3. Staining powers : 



a. Aqueous gentian- violet. . 

 Ii LoeSler's methylen-blue. 



f. Gram's stain 



d. Special stains 



i. Motility : 



a. Character of movement... 



b. Flagella stain 



5. Spores: 



6. Special characters: 



u. Capsules 



b. Involution foi'ms 



u. Deposits or vacuoles.. 

 d. Pleomorphism 



