BACTERIOLOGICAL DIAGNOSIS. 755 



II. Micrococci united in zooglcea masses by an intercellular substance: 



Micrococcus viticulosis (204). 

 Micrococcus plumosus (200). 

 Micrococcus candidus (193). 

 Micrococcus amylovorus (234). 

 Ascococcus Billrothi (235). 

 Leuconostoc mesenteroides (236). 



III. Micrococci in pairs diplococci, not forming chains. 



A. Grow in nutrient gelatin at the room temperature (20 to 22 



C.), and liquefy the gelatin. 



a. Chromogenic ; pigment yellow : 



Diplococcus subflavus (16) stains by Gram's method. 



Micrococcus botryogenus (19). 



Diplococcus flayus liquefaciens tardus (165). 



a. Pigment red : 



Diplococcus roseus (168). 



b. Non-chromogenic : 



Diplococcus albicans amplus (191). 

 Micrococcus of Heydenreich (26). 



B. Grow in nutrient gelatin at the room temperature, and do not 



liquefy ; non-chromogenic. 



a. Stain by Gram's method : 



Micrococcus of Manfredi (20). 

 Micrococcus of trachoma ? (17). 



b. Do not stain by Gram's method : 



Diplococcus of pneumonia in horses (32). 

 Hsematococcus bovis (34). 

 Diplococcus albicans tardissimus (205). 



c. Staining by Gram's method not determined : 



Diplococcus coryzse (209). 



C. Do not grow in nutrient gelatin at the room temperature ; non- 



chromogenic ; do not stain by Gram's method : 

 Diplococcus intercellularis meningitidis (9). 

 Micrococcus gonorrhoeas (6). 

 Micrococcus of Kirchner (38). 

 Micrococcus of Demme (27). 



D. Biological characters imperfectly determined : 



Micrococci of Disse and Taguchi (p. 404). 



IV. Micrococci which multiply by division in one direction only, 



forming diplococci and streptococci. 



A. Grow in nutrient gelatin at the room temperature (20 to 22 

 C.), and liquefy the gelatin. 



