MOLDS AND YEASTS AND DISEASES CAUSED BY THEM 



241 



skin gives rise to typical lesions. Intravenous injection into 

 rabbits is usually followed by a pseudo-tuberculosis in the lungs, 

 sometimes fatal. Similar skin lesions occur naturally in various 

 animals, and the molds there present are very similar to, if not 



FIG. 98. Achorion schoenleinii. Colony developing from a favus scale. End, endo- 

 conidia on submerged hyphae. Ect, ectospores on aerial hyphae. (After Plant.} 



specifically identical with, Achorion schoenleinii. The exact 

 relationships of the parasites are not very exactly settled as yet. 



Microsporon Audouini. This mold is found growing in the 

 hair-shaft in alopecia areata. If the hair be pulled out it breaks 



16 



