SUMMARY 257 



Species i. Alb. pyo genes (Rosenbach) Winslow. 

 A parasitic coccus, living normally on the surfaces of the 

 human or animal body, or in diseased tissues. Occurs 

 singly, or in pairs, or irregular groups. Generally stains 

 by Gram. Good to abundant white surface growth. 

 Moderate acid production in dextrose and lactose broth. 

 Nitrates not reduced. Growth best at 37 degrees. Gela- 

 tin liquefied, but somewhat slowly. 



Species 2. Alb. epidermidis (Gordon) Winslow. 

 A parasitic coccus, living normally on the surfaces of the 

 human or animal body. Occurs singly, or in pairs, or 

 irregular groups. Generally stains by Gram. Good to 

 abundant, white surface growth. Moderate acid produc- 

 tion in lactose, maltose, and glycerin media. Nitrates 

 and neutral red reduced. Gelatin liquefied, somewhat 

 slowly. Mannite not fermented, 



Species 3. Alb. candidus (Cohn) Winslow. 



A parasitic coccus, living normally on the surfaces of the 

 human or animal body. Occurs singly, or in pairs, or 

 irregular groups. Generally stains by Gram. Good to 

 abundant, white surface growth. Moderate acid pro- 

 duction in dextrose, lactose, and maltose media, not in 

 glycerin or mannite. Nitrates not reduced. Gelatin not 

 liquefied. 



Species 4. Alb. tetragenus (Gaffky) Winslow. 



A parasitic coccus, living normally on the surfaces of the 

 human or animal body (most commonly in the nose and 



