EXERCISE 91. PSEUDOMONAS GROUP. 



247 



Pseudomonas aeruginosa (SCHROETER) 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, IMd., 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. FORM AND ARRANGEMENT: 



a. Bouillon 



&. Agar 



c. Gelatin 



d. Other media 



2. SIZE : 



3. STAINING POWE.RS : 



a. Aqueous gentian- violet 



b. Loeffler's methylen-blue 



c. Gram's stain 



d. Special stains 



4. MOTILITY : 



a. Character of movement 



b. Flagella stain 



5. SPORES: 



6. SPECIAL CHARACTERS : 



a. Capsules 



b. Involution forms 



c. Deposits or vacuoles 



d. Pleomorphism 



