144 



PHARMACEUTICAL BACTERIOLOGY. 



f. Cryptococcus gilchristi. Pathogenic; general infections, 

 g Cryptococcus hominis. Pathogenic. 

 2 Gymnoascomycetes. 



a. Trichophyton tonsurans. Pathogenic, causes scalp disease 

 (ringworm), also attacks other external tissues. 



b. Trichophyton sabourandi. Pathogenic. Attacks scalp and beard 

 - (ringworm). 



Fig. 65. — Saccharomyces cerevisece. The form or variety known as brewers' bottom 

 yeast. (Unterkeje). a, Spore formation; b, elongated cells, which develop under certain 

 conditions of moisture, food supply, etc. 



c. Trichophyton violaceum. Pathogenic. Like (b). Violet color. 



d. Trichophyton mentagrophytes. Pathogenic. Causes beard and 

 body ringworm. 



e. Trichophyton cruris. Pathogenic. 



f . Microsporum audouini. Pathogenic. 



g. Achorion schxnleini. Pathogenic. Is the cause of that very 

 common scalp disease of children known as favus. 



3. Carpoascomycetes. 



a. Penicillium crustaceum. This is a blue-green mould which is 



