296 PHARMACEUTICAL BACTERIOLOGY 



b. Trichophyton Sabourandi. Pathogenic. Attacks scalp 

 and beard (ringworm). 



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. 



Fig. 71. — Saccharomyces cerevisea. The form or variety known as brewers' bottom 

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

 conditions of moisture, food supply, etc. 



g. Achorion Schcenleini. Pathogenic. Is the cause of that 

 very common scalp disease of children known as favus. 

 Carpoascomycetes. 



a. Penicillium crustaceum. This is a blue-green mold 

 which is believed to be pathogenic in chronic catarrhal 

 conditions of the Eustachian tubes and of the stomach. 



b. Penicillium glaucum. This is the omnipresent blue-green 

 mold so common in the household, infesting all exposed 

 moist organic substances. Supposed to be non-patho- 



