TBICHOPHYTONEAE 511 



Also endemic in France, Belgium, Netherlands, Denmark, since the war be- 

 coming- endemic in Germany, occasional in Italy, Montreal, and Philadelphia, 

 rare in Japan and Sao Paulo in Brazil. 



Colonies snow white when young and velvety, then gradually turning 

 pale rose (color of peach blossoms) while the reverse becomes gooseberry 

 violet; divided into sectors, each becoming elevated and rounded. Pleo- 

 morphic velvet starting as crescent or ring at margin, wholly white, surface 

 plane, cut by narrow radial furrows. On Sabouraud conservation agar, pri- 

 mary colony as on sugar media but pure white, reverse black. Pleomorphic 

 colony on this medium elevated with central boss and five petaliform sectors 

 separated by broad and deep furrows. 



Var. vinosum (Sabouraud) Dodge, n. comb. 



Trichophyton vinosum Sabouraud, Maladies de cuir chevelu 3: 386-388, 

 1910. 



Ectotrichophyton vinosum Castellani & Chalmers, Man. Trop. Med. ed. 3, 

 1007, 1919. 



Megatrichophyto7i viyiosiim Neveu-Lemaire, Precis Parasitol. Hum. 55, 1921. 



Producing circinate lesions on the face. France. 



Suggestive of M. roseum, but the pale rose soon becomes wine red. Colony 

 at first slightly acuminate, umbonate at the center, radiate with a flat white 

 border, becoming flatter in age, never presenting the roundness of M. roseum, 

 reverse not colored. In 2 months, colony larger than M. roseum ever becomes, 

 with a double white border around a wine red powdery center. 



Doubtful Species 



Megatrichophyton nodoformans (Castellani) Neveu-Lemaire, Precis 

 Parasitol. Hum. 55, 1921. 



Trichophyton nodoformans Castellani, Proc. R. Soc. Med. 6: Derm. Sect. 

 35, 1912. 



Ectotrichophyton nodoformans Castellani & Chalmers, ]\Ian. Trop. Med. 

 ed. 3, 1007, 1008, 1919. 



Producing tinea cruris, with thick elevated margins and deep-seated 

 nodules along the edge, resembling blind boils. Pyogenic, also attacking the 

 hair follicles. Ceylon. 



Colonj^ powdery white, w^ith central knob; the growth slowly deepens 

 in the medium and the submerged portion has a characteristic brick-red color 

 which generally disappears after repeated transplantations. On glucose agar, 

 growth somewhat more abundant and the brick red pigmentation of the sub- 

 merged growth is usually absent. On glycerol agar, growth quite abundant 

 but no pigment. On ordinary agar, growth scanty, whitish. 



Morphology not described, hence the position of this species is doubtful. 

 There seems to be little to distinguish it from Epidermophyton salmoneum 

 Froilano de Mello (see p. 484) except the statement that it may attack the 

 hair. However, since I have not had an opportunity to studj^ a similar case 



