90 



ASPERGIKLUS FUMIGATUS. Lichtheim. 



Origin. White bread. In the air passages of a bird. 



Color. Greenish or bluish green growth, resembling 

 very much that of penicillium. 



Mycelium. About same as preceding. 



Fruit-organs. About same as preceding, but spores 

 only about one-half as large. 



Growth. Is best on bread and is rapid. 



Bread flasks. The growth is low and at first is bluish green, but when 

 old is grayish green. 



Temperature. The optimum is 39-40 C. Can 

 grow at the ordinary temperature. 



Pathogenesis. Intravenous injections of spores in 

 rabbits and dogs produced death in a few days. Mycelia 

 are found in the kidneys, heart muscle and other muscles, 

 and occasionally in the liver. 



