EXERCISE 81. FRIEDLANDEE GROUP. 



171 



Bacterium pneumonicum (FRIED.) MIG. 



SYNONYMS. Friedlander's bacillus; bacillus pneumonias WEICH- 

 SELBAUM ; Pneumobacillus of Friedlander. 



EXPLANATORY. First described by Friedlander in 1882. Found 

 frequently in normal saliva, lungs, "rusty sputum " of pneumonia, 

 and has been found in air and water. 



REFERENCES. Friedlander, Virchow's Archiv, 32, 319; C. 131; 

 Fl. 2, 342 ; H. 314 ; K. & W. Ill, 189 ; L. & N. 225 ; Mig. 2, 350 ; M. & 

 R. 209 ; McF. 300 ; P. 458. 



MORPHOLOGICAL CHARACTERS : 



SKETCHES. 



1. FORM AND ARRANGEMENT: 



a. Bouillon 



&. Agrar 



c. Gelatin 



d. Other media 



2. SIZE: 



3. STAINING POWERS: 



a. Aqueous gentian-violet.. 

 6. Loeffler's methylen-blue. 



c. Gram's stain 



d. Special stains 



4. MOTILJTY: 



a. Character of movement.. 

 6. Flagella stain 



5. SPORES : 



6. SPECIAL CHARACTERS: 



a. Capsules 



6. Involution forms 



c. Deposits or vacuoles 



d. Pleomorphism 



