FILAMENTOUS AND BUDDING FUNGI. 



343 



On agar a moderate, whitish, wavy coating forms, the 

 lower surface of which exhibits a sulphur-yellow color. 

 Upon agar and gelatin the mycelium remains sterile. 



Fig. 76. Achorion invading root-sheaths and bulb of the hair (Kaposi). 



Upon blood-serum, at a temperature of 30 C. (86 F.), 

 formation of conidia takes place. 



Favus occurs in dogs, cats, and mice, as well as in 

 human beings. It is generally transmitted to human be- 



