366 



MICROBIOLOGY 



Page, Frothingham and Paige 1T have described a sporo- 

 thrix they isolated from specimens taken from horses supposed 

 to be suffering from epizootic lymphangitis. It differs mark- 

 edly from Saccharomyces farciminosus described as the cause 



of that disease. The 

 sporothrix appears to be 

 identical with that de- 

 scribed by Schenk, Hek- 

 toen and Perkins as the 

 cause of multiple ab- 

 scesses in the human 

 subject. It grows best 

 on media containing su- 

 gar (maltose) and with 

 an acid reaction. It de- 

 veloped readily, how- 

 ever, on the ordinary 

 media. Potato seemed 

 to be an excellent medi- 

 um for its cultivation. 



Saccharomyces patho- 

 genic for man. Busse 18 

 hi 1894 described an or- 

 ganism, Saccharomyces 



dermatitidis, from a fatal case of dermatitis in man. Gilchrist, 

 Ophuls, and others described similar organisms as the cause of 

 lesions in the human subject. 



Fig. 78. Yeasts; 1, spore bearing 

 yeast, S. pasteurianus; 2, yeast, S. 

 ellipsoidens; 3, a, old form, b, dead 

 forms; 4, S. cerevisiae. (After Mar- 

 shall). 



HYPHOMYCETES. 



The hyphomycetes are- closely related to the higher algae. 

 Perhaps as Jordan states they should be regarded phylogeneti- 

 dally as forms that have lost the chlorophyl they once pos- 

 sessed as the result of taking on a saprophytic or parasitic 



17 Page, Frothingham and Paige. Jour. Med. Research, N. S. 

 Vol. XVIII (1910) p. 137. 



18 Busse. Centralbl. f. Bakt, Bd. XVI (1894) p. 175. 



