512 MEDICAL MYCOLOGY 



or to study authentic cultures, I have preferred not to reduce E. salmoneum 

 to synonymy nor to transfer this species to Epidermophyton. The original 

 descriptions of both species are lacking in data essential to a proper placing 

 of the organisms. 



FAVOTRICHOPHYTON 



FavotricJiophyton Neveu-Lemaire, Precis Parasitol. Hum. 55, 1921. 



FavotricJiophyton (as subgenus of Ectotrichophyton) Castellani & Chal- 

 mers, Man. Trop. Med. ed. 3, 1003, 1919. 



Bodinia Ota & Langeron, Ann. Parasitol. Hum. Comp. 1: 329, 1923. 



Oruhyella Ota & Langeron {pro parte), Ann. Parasitol. Hum. Comp. 1: 

 330, 1923. 



Type Species: FavotricJiophyton ochraceum (Sabouraud) Neveu-Lemaire. 



Chlamydospores, aleurospores, and arthrospores present; giant colony 

 usually elevated, convoluted, moist, glabrous and yeastlike or finally covered 

 with a scant velvet, growth circumscribed, similar to Achorion in appearance; 

 lesions predominantly in domestic animals, dry crusts covering vesicopustules, 

 causing suppuration and even kerion formation in man; in the subgenus 

 Bodinia where the lesions are confined to man, lesions are milder, producing 

 tinea tonsurans of the Sabouraudia type, but usually with some inflammation 

 or even suppuration. 



This genus may be divided into two subgenera; EufavotricJiophyton 

 typified by F. ochraceum and Bodinia typified by F. violaceum {T. violaceum 

 Bodin). It is possible that as more information is available about this group 

 it will seem advisable to recognize Bodinia as a separate genus on account of 

 the different type of lesion produced, but, so far as data are now available, 

 the morphology of the fungus in culture, and the type of giant colony seem 

 to be very close to those of Favotrichophyton. 



Eufavotrichophyton is composed of two groups, a group with white colo- 

 nies which may have been derived from the Ectotrichophyton farinulentum 

 line and the main yellow or ochraceous group which may have been derived 

 from the Ectotrichophyton lacticolor group. 



Recently Baudet (1932) has studied several strains of the white group 

 without identifying his organisms. Perhaps his strain on horses belongs to 

 F. discoides and his strains on cows and goats belong to F. album and F. 

 singulare. Following a suggestion contained in the work of Catanei (1929) 

 on the growth of Achorion Schoenleini in the presence of Staphylococcus sp. 

 and the products of its metabolism, he found a medium of killed staphylococci 

 very suitable for cultivation, giving much more luxuriant colonies with abun- 

 dant aleurospores. These spores were also produced in cultures on potato and 

 carrot. Several strains produced some yellow pigment on potato, especially 

 on subculture on this medium. The staphylococcus medium did not affect 

 the morphology of Favotrichophyton violaceum. 



