498 



MEDICAL MYCOLOGY 



On oats spirals highly developed, on other media Math higher carbohy- 

 drates less so. Coremia common on cereals, horse dung, and starch + peptone 

 media. Closterospores abundant. Only relatively small chlamydospores on 

 Sabouraud agar, aleurospores caducous and not abundant, sporophores simple. 



On Sabouraud glucose or maltose, velvety, center more or less crateriform 

 with long-, slender, delicate rays, sometimes flexuous or somewhat interwoven, 

 snow white, no pleomorphism. Sabouraud suggests that this species may be 

 a pleomorphic form of some member of the T. gypseum g-roup (e.g., E. menta- 

 grophytes) in which the pleomorphic form is so fixed that it is not reversible 

 either in natural or artificial inoculation in animals. While in one case a cat 

 was suspected as being the source, it has not been isolated from domestic 

 animals. 



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



TricJiophyton niveum. var. denticulatKm Saboui-aud, Maladies du cuir 

 chevelu 3: 338 [footnote], 1910. 



Trichophyton denticnlafum Sabouraud, Maladies du cuir chevelu 3: 374- 

 377, 1910. 



fTrichophyton candidum endosporum Rosenbach, Uber die tiefen eiternden 

 Schimmelerkrankungen der Haut 38, 1894. 



Ectotrichophyton (Microtrichophytoyi) denticulatum Castellani & Chalmers, 

 Man. Trop. Med. ed. 3, 1006, 1919. 



Microtrichophyton denticidatum Neveu-Lemaire, Precis Parasitol. Hum. 54, 

 1921. 



Aleurosporia denticidata Grigorakis, Ann. Sci. Nat. Bot. X, 7: 413, 1925. 



Trichophyton {Aleurosporia) denticulatum Guiart & Grigorakis, Lyon 

 Med. 141: 377, 1928. 



Lesions more inflammatory than in the species. Inoculable into guinea 

 pig where the lesions are similar to those produced by E. mentagrophytes. 



Colony a circular velvety felt, with fringe of short teeth ; snow white, 

 not pleomorphic. 



Ectotrichophyton radioplicatum (W. Fischer) Dodge, n. comb. 



Trichophyton gypseum radioplicatum W. Fischer, Derm. Woch. 57: 1402- 

 1406, 1 fig., PI. 11, Figs. 3-6, 1913. 



Trichophyton radioplicatum Bruhn & Alexander in Jadassohn, Handbuch 

 d. Haut- u. Geschlechtskrankh. 11: 173, 174, 1928. 



Large lesions on lower jaw and neck of coachman, sycosis, infiltrated, 

 with some pus, ectothrix infection of hairs with small spores. Inoculation 

 of guinea pigs successful, spontaneous healing in 3 weeks ; ectothrix. Germany. 



Spores, racquet mycelium present, spirals of 6-12 turns present, tips of 

 hyphae thickened but no closterospores, chlamydospores in chains, aleuro- 

 spores abundant, either in simple or compound thyrses. Pleomorphic mycelium 

 with a few spores. Since the morphology was studied several months after 

 isolation, closterospores were probably present at first, becoming degenerate 



