370 MEDICAL MYCOLOGY 



Spores spherical or ovoid, 3.5-4.5/*, thick-walled. 



No white spots or craters on surface of glycerol agar cultures. Indol not 

 produced. Litmus in broth strongly decolorized. No acid formation in lac- 

 tose broth. — Schmitter. 



Malassezia pachydermatis (Weidman) Dodge, n. comb. 



Pityrosporum imchydermatis Weidman in Fox, Kept. Lab. Mus. Comp. 

 Path. Zool. Soc. Philadelphia 36, 1925. 



Pityrosporum rhinoserosum Sabouraud in Lodder, Anaskosporogenen 

 Hefen 1 : 189, 1934. 



Isolated from scaling of the skin of Rhinoceros unicornis in the Zoological 

 Garden in Philadelphia. 



In scales, cells small, sprouting, polar. In malt extract, cells ovoid or 

 flask-shaped, 1.5-3 x 2.5-5/x, sprouting over a broad base, polar. 



Growth very slow, elevated, center pointed, dark yellowish, thick, surface 

 smooth, regular, dull. On malt agar, colony brown, margin lighter, dull, some- 

 what irregular surface, margin smooth. On malt gelatin, colony gray, dull, 

 smooth, margin irregular. On malt extract, a few islets, a thin ring, and 

 granular sediment. On alcohol, a few thin islets. No fermentation; gelatin 

 liquefied after 12 weeks. 



Doubtful Species 



Mycoderma Dombrayi Vuillemin, C. R. Acad. 8ci. 189: 405-406, 1929. 



Isolated from white pityriasis of the skin of penis and scrotum of a der- 

 matologist. 



The scales show filaments varying from 3-6.75/a in diameter with chlamy- 

 dospores ; same appearance on liquid media. Chlamydospores reach a diam- 

 eter of 14/x on germination. 



BIBLIOGRAPHY 



The following articles relating to Hemispora infections were overlooked 

 when this genus was transferred from the Toriileae at a late stage in the prepa- 

 ration of this work : Falchi 1925, see p. 689 ; Fonseca & Area Leao 1927, see 

 p. 689 ; Porcelli 1922, see p. 692 ; Sartory, Meyer & Meyer 1930, see p. 692, and 

 Vuillemin 1906, see p. 693. 



Aars, C. G. 1930. Piedra, Arch. Derm. SyphiJol. 22: 401-409, 9 figs. 



Acton, Hugli W. 1918. The diagnosis of acute infections of the throat occurring amongst 

 troops of the Mesopotamian Expeditionary Force, Indian Jour. Med. Bes. 6: 152-156. 



— . 1919. Mycotic infections of the throat due to Endomyces tropicalis, Indian Jour. Med. 

 Bes. 6: 591-600, 4 pis. 



Acton, Hugh W. & Ganapati Panja. 1927. Seborrheic dermatitis or pityriasis capitis: a 

 lesion caused by Malassezia ovale, Indian Med. Gaz. 62: 603-614, 10 pis. 



Agostini, Angela. 1932. Observations on fungi found in cases of North American blastomy- 

 cosis of the skin and lungs, Jour. Trop. Med. Hyg. 35: 266-269, 3 figs. 



— . 1934. Su due ifomiceti isolati da micosi umane. Blastomicoides immitis (Rixford & 

 Gilchrist) Castellani e Blastomycoides tulanensis Castellani, Atti 1st. Bot. R. Univ. 

 Pavia IV, 4: 9-15, S figs. 



