EXERCISE 91. PSEUDOMONAS GEOUP. 247 



Pseudomonas aeruginosa (Schroetek) Mig. 



Synonyms. Bacillus pyocyaneus Gessard; Bacillus of blue- 

 green pus. 



Explanatory. First described in 1872 by Schroeter. Found 

 in green pus, and widely distributed in nature. 



References. Schroeter, Cohn 's Beitraege zur Biologie, 1872, 1, 

 126 ; Barker, Jour. Am. Med. Asso., 1897, July 31 ; Jordan, Jour. 

 Exp. Med., 1890, 627: Lartigau, Ihid., 1898, 595: A. 304; C. 321; 

 H. 171 ; K. & W. Ill, 471 ; L. & N. 281 ; Mig. 884 ; M. & R. 186 ; M. & 

 W. 160 ; McF. 269 ; P. 535 ; S. 454. 



Morphological characters: 



Sketches. 



1. PORJI AND AKBANGEMEXT : 



tt. Bouillon 



c Gelatin 



d. Other media.. 



Size: 



Staining powers : 



a. Aqueous gentian- violet. . 



b. LoefBer's methylen-blue. 



c. Gram's stain 



d. Special stains 



Motility : 



u,. Character oiE movement... 

 b. Flagella stain 



6. Spores: 



6. Special characters:.... 



a. Capsules 



i. Involution forms 



c. Deposits or vacuoles.. 



d. Pleomorphism 



