EXERCISE 86. INFLUENZA GROUP. 



211 



Bacterium influenzae (PFEIFFER) L. & N. 



SYNONYM. Bacillus influenzae PFEIFFER. 



EXPLANATORY. First described in 1892 by R. Pfeiffer. Found 

 in the sputum and in nasal secretions of the diseased. 



REFERENCES. Pfeiffer, Z. f . H. 1993, 13 ; 357 ; A. 371 ; C. 351 ; 

 Fl. 2 ; 434 ; H. 316 ; K. & W. Ill, 359 ; L. & N. 202 ; Mig. 2, 506 ; M. & 

 R, 430;McF. 574; P. 320. 



MORPHOLOGICAL CHARACTERS : 



SKETCHES. 



1. FORM AND ARRANGEMENT: 



a. Bouillon , 



&. Agar 



c. Gelatin 



d. Othermedia 



2. SIZE: 



3. STAINING POWERS: 



a. Aqueous gentian- violet. . 

 &. Loeffler's methylen-blue. 



c. Gram's stain 



d. Special stains 



4. MOTILITY : 



a. Character of movement.. 

 6. Flagella stain 



5. SPORES : . o 



6. SPECIAL, CHARACTERS: 



a. Capsules 



&. Involution forms 



c. Deposits or vacuoles 



d. Pleomorphism 



