540 MEDICAL MYCOLOGY 



Microsporum Audouini var. equinum Delacroix & Bodin apud Bodin, Les 

 teignes tondantes du cheval . . . These, Paris 41-47, 1896 ; Arch, de Parasitol. 

 1: 379-409, 2 pis., 1898. 



Fusarium equinum Novgaard, Sci. n. s. 14: 11, 898, 899, 1901. 



Sabouraudites (Closteramma) equinus Ota & Langeron, Ann. Parasitol. 

 Hum. Comp. 1: 329, 1923. 



Produces tinea tonsurans on horse, rarely on man, usually heals spon- 

 taneously on the latter. Not inoculable into guinea pig while culture remains 

 glabrous, and very old cultures lose their virulence. Denmark, France, and 

 North Italy, also Java and Uruguay. 



Arthrospores on hair 2-3/x, spherical or somewhat polyhedral from pres- 

 sure ; hyphae in hair 2-2. 5/a, parallel to the long axis of the hair. Compara- 

 tively few, poorly developed closterospores, 25-35 x 18-20/a, only 1-4-celled ; 

 aleurospores, arthrospores, and chlamydospores present. 



Colony nearly glabrous, scarcely velvety, almost humid, with deep radial 

 folds, somewhat cerebriform in center, not rising above the general level of 

 the medium. On malt agar, wholly glabrous, reddish ochre, center slightly 

 elevated and folds extremely regular, following the rays ; yellow or more or 

 less brownish. Aging cultures covered with a light, white velvet, subcultures 

 much more velvety than the primary one. 



Microsporum Ramosii Parreiras Horta (orthog. mutat.). 



Microsporum Ramos Parreiras Horta, Brasil Med. 38: 59, 60, 1924. 



Producing disseminated folliculitis in a 14-year-old boy, Brazil. 



Aleurospores abundant, closterospores not reported. 



On Sabouraud agar with sucrose, colony yellow, then vermilion, finally 

 with white pleomorphic velvet. 



Dedicated to Joao Ramos e Silva. The author suggests that it is very 

 close to M. equinum. It should be studied further for a possible relationship 

 to the subgenus Kamhayashia. 



Microsporum marginatum Cazalbou, Premier Cong. Intemat. Path. Comp. 

 1912, 2: 307, 308, 1914. 



Producing lesions on mule from Algeria ; not reported since original case. 



Mycelium regular, developing racquet mycelium, closterospores and thyrses 

 of aleurospores. 



On maltose peptone, colony circular, slight central crater from the outer 

 slope of which radiate a large number of rays. Upper surface and reverse, 

 the color of chamois skin with a line of deeper color connecting the outer 

 ends of the rays, margin lighter. Silky velvet above, inconspicuous. On glu- 

 cose peptone, equal development, fewer rays and shorter, yellowish below a 

 subperipheral zone, rose color, 4-5 mm. broad. On malt extract (3% maltose), 

 colonies less vigorous, glabrous, central area blackish, the rest grayish, mar- 

 gins sinuous. 



Microsporum villosum Minne, Soc. Beige Derm. 7: 1906, 1907; Kong. 

 Deutsch. Derm. Ges. 10: 447, 1908; Sabouraud, Maladies du cuir chevelu 3: 

 242, 243, 1910. 



