146 



PHARMACEUTICAL BACTERIOLOGY. 



fungus 

 a disease 



III. Hyphomycetes. Systematic position of the pathogenic members 

 not well defined. Life history not yet fully worked out. 



I. Discomyces bovis. (Actinomyces). The so-called ray 

 which causes the condition in cattle known as actinomycosis, 

 which can be transmitted to man. 



2. Discomyces madum. (Mycetoma) . Causes the cattle disease known 



as madura foot, which can be transmitted to man. Essentially a tropical 



disease. Two varieties (black and white) of the disease are reported. 



3. Malassezia furfur. This is the fungus which causes a skin disease 



Fig. 67. — Three terminal hyphae showing the characteristic spore formation of Peni- 

 cillium glaucum. This fungus is a true saprophyte and is never found on living fruits or 

 vegetables. Mouldy food substances are quite universally rejected as being unfit for 

 human consumption. 



{Tinea versicolor) which is quite common in tropical as well as in temperate 

 climates. . 



4. Microspor aides minutissimus. Causes a skin disease known as 

 Erythrasma or Dhobie's itch. Found in the tropics. 



5. Trichosporum giganteum. Causes a disease of the hair. The 

 spores of the fungus are arranged about the hair in a peculiar mosaic. 



