YEASTS AND MOLDS 211 



Form. Similar to the achorion or favus fungus. 



Growth. Somewhat more rapid than the favus, and the gela- 

 tin quickly liquefied. Old cultures are of an orange-yellow 

 color. Colonies have a star-shaped form. 



Patho genesis. Herpes tonsurans and the various tinese are 

 produced by this fungus. 



Microsporon Furfur. Found in tinea versicolor, almost 

 identical with the above, forms dry yellow spots, usually on the 

 chest, in persons suffering from wasting diseases. 



Fig. 127. Aspergillus fumigatus (x 500) (Frankel and Pfeiffer). 



Aspergillus Glaucus. Origin. In saccharine fruits. 



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

 from which pear-shaped sterigmata arise and bear upon their 

 ends the conidia or spores. 



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. 



