30 ACTINOMYCETES 



b. Parasites, living in bodies of man and animals. 

 Nocardia gedanensis 

 2. Mycelium producing frequent septae; hyphae break up into 

 short rods and cocci. 



a. Saprophytes. 



a 1 . Grow on protein media. 



Nocardia actinomorphus 

 b 1 . Grow on paraffin. 



Nocardia paraffinae 



b. Parasites .... Nocardia bovis 



II. Cultures produce aerial sporophores on surface of colonies, but no 

 aerial mycelium; sporophores are short, straight, covering the sur- 

 face of the colonies with a thin pale cover. 



1. Cultures grow in organic media. 



Nocardia albicans 



2. Cultures grow in inorganic media. 



Nocardia oligocarbophilus 

 III. Cultures not forming any sporophores or any aerial mycelium; 

 colonies smooth or lichnoid. 



1. Saprophytes living on dead substrate. 



Nocardia albus 



2. Parasites or symbionts living within plants, animals, or man. 



a. Organisms living in symbiosis with plants, forming nodules 

 on their roots. 



Nocardia alni 

 Nocardia myricae 

 Nocardia elaeagnii 



b. Organisms living in the bodies of man and animals. 

 a 1 . Anaerobes, living in absence of oxygen. 



Nocardia anaerobicus 

 b 1 . Aerobes, or microaerophilic forms. 

 a 2 . Strict aerobes. 



Nocardia lignieresi 

 b 2 . Facultative aerobes. 

 a 3 . Cells non-acid-fast. 

 Nocardia israeli 

 b 3 . Cells acid-fast. 



Nocardia muris 

 B. Cultures pigmented. 



I. Cultures pigmented violet or blue, the pigments diffusing into the 

 substrate. 



