TRICHOPHYTONEAE 515 



Cultural characters close to F. album, but colony more circular, elevated 

 disc with central umbo, brownish neutral color, surface smooth and humid, 

 occasionally with a tuft of large hyphae on the disc and the disc even covered 

 with a short velvet, but it usually remains glabrous, humid, and pale yellowish. 



Favotrichophyton album (Sabouraud) Neveu-Lemaire, Precis Parasitol. 

 Hum. 55, 1921. 



Ti'icho'pliyton aJhum Sabouraud, Ann. Derm. Syphiligr. IV, 9: 617-627, 

 PI. 2, 14 figs., 1908. 



Ectotrichophjiton (Favotrichophyton) alhum Castellani & Chalmers, Man. 

 Trop. Med. ed. 3, 1004, 1919. 



Grubyella alba Ota & Langeron, Ann. Parasitol. Hum. Comp. 1: 330, 1923. 



Arthrosporia alba Grigorakis, Ann. Sci. Nat. Bot. X, 7: 414, 1925. 



Achorion (Bodinia) album Guiart & Grigorakis, Lyon Med. 141: 377, 1928. 



Lesions strictly endothrix in calf, ectoendothrix when inoculated into 

 cow and guinea pig, France ; also reported as causing an epizootic of 80 eases 

 in Minas. Geraes in Brazil. On man producing lesions suggesting those of 

 pityriasis rosea but more inflammatory. 



Mycelium and chlamydospores regularly present. 



Colony waxy, cream color (cire de cierge) surface spongy and vermicu- 

 late, umbilicate, margins quite regularly folded, growth slow. 



Favotrichophyton singulare (Cazalbou) Dodge, n. comb. 



Trichophyton singulare Cazalbou, Rev. Gen. Med. Vet. 24: 9-11, 1914. 



Trichophyton album Baudet, Ann. Parasitol. Hum. Comp. 8: 512-519, 1930. 

 not Sabouraud 1908. 



From lesions on two cows from Nantes, France. 



Baudet reports aleurospores, pectinate hyphae, and intercalary or termi- 

 nal, pedicellate chlamydospores present; in one culture on barley, clostero- 

 spores were produced. 



Primary cultures faviform, small globular masses, glabrous and vaguely 

 convoluted. Then the culture spreads out into a round, white velvety disc 

 with a small central button; in subcultures, cream white, with deep circular 

 furrow around central hill, about 10 deep radial furrows and several other 

 shallow ones, the latter much more irregular. On glucose, aspect similar but 

 colony whiter. After pleomorphism about four concentric circular ridges 

 and 12 radiating ones, suggesting a coarse spider web. Often, however, 

 pleomorphism does not occur, and after about a month the velvet disappears 

 and the colony returns to its faviform appearance. 



Baudet ^s T. album is referred here on account of the morphology of the 

 giant colony which differs in several respects from T. album Sabouraud. 



Favotrichophyton camerounense (Ota & Gaillard) Dodge, n. comb. 



Grubyella camerounensis Ota & Gaillard, Ann. Parasitol. Hum. Comp. 4: 

 14-21, Figs. 1-3, 1926. 



Trichophyton papillosum Lebasque, These Sci. Nat. Univ. Paris 71-77, PI. 

 5, Figs. 1, 2, 1933. 



