EXERCISE 76. PUS COCCUS (JKOUF. 145 



Micrococcus pyogenes var. all)us (Eoseneacii) L. & N. 



Synonyms. Staphylococcus pyogenes alhus Eosbnbach; 

 Staphylococcus epidermidis albus Welch ; white staphylococcus. 



Explanatory. First described by Rosenbach. One of the com- 

 mon organisms found in pus. Occurs on the skin, in sputum, air, 

 water, dust and soil. 



Eeferences. Rosenbach, Mikroorganismen bei dem Wundinfee- 

 tionskrankheiten des Menschen. 1884; C. 75; K. & W. Ill, 105; 

 L. & N. 180 ; Mig. 2, 87 ; McF. 255 ; P. 470. 



Morphological characters : 



1. Poem and akkangement: 

 a. Bouillon 



Sketches. 



6. Agar . 



ti. Gelatin 



d. Other media.. 



Size: 



Staining powbks : 



a. Aqueous gentian- violet. . 



6. Loeffler's methylen-blue. 



u. Gram's stain 



d. Special stains 



Motility : 



a. Character of movement. . . 



b. Flagella stain 



5. Spores : 



6. Special ohabaoters: 



u. Capsules 



6. Involution forms 



u. Deposits or vacuoles.. 

 d. Pleomorphism 



