226 



ESSENTIALS OF BACTERIOLOGY 



Microsporon Furfur. Found in tinea or pityriasis versi- 

 color, almost identical with the above; forms dry yellow 

 spots, usually on the chest, in persons suffering from wasting 

 diseases. 



Aspergillus Glaucus. The aspergillus is a common 

 mold contaminating bacterial cultures. 



Origin. In saccharine fruits. 



Form. The hypha has formed upon its further end a bulb, 

 from w r hich pear-shaped sterigmata arise and bear upon their 

 ends the conidia or spores. 



Fig. in. Aspergillus fumigatus (X 500) (Frankel and Pfeiffer). 



Growth. Best upon fruit-juices. Non-pathogenic. The 

 mold is green. Aspergillus flavus has the tufts and spores of 

 a yellow color. 



Aspergillus Fumigatus. Is pathogenic for rabbits when 

 injected into them. At the autopsy their viscera are found 

 filled with the mold. 



Examination of Yeasts and Molds. Yeasts and molds 

 are best examined in the unstained condition. A small por- 

 tion of the colony rubbed up with a mixture of alcohol and a 



