356 MEDICAL MYCOLOGY 



Yeast cells ovoid or pyrif orm the first day, mostly 4-5/1. in diameter but some 

 as high as T/x, few sprouting forms. On second day, cells all pyriform. No 

 ascospores observed. 



On glucose agar, colonies white, creamy. On maltose agar, the same, but 

 with tendency to become thicker in the middle. Colony grayish on poor agar. 

 On potato, colony dry and chalkj- white. In broth to which glucose has been 

 added, white sediment, liquid clear, no pellicle or ring, some gas evolved. 

 Gelatin is very slowly liquefied. This organism grows as well at 37° as at 

 20°-22° C. 



Eutorula irritans (Mattlet) Dodge, n. comb. 



Cryptococcus irritans Mattlet, Ann. Soc. Beige Med. Trop. 6: 15, 1926. 



Isolated from sputum of a patient in Belgian Congo, who had long attacks 

 of coughing and dry rales. Greenish yellow purulent clots showing yeast 

 cells were abundant in the sputum. Treated with potassium iodide and novar- 

 senobenzol Billon. After 3 weeks, the symptoms and the yeasts disappeared 

 from the sputum. 



Yeast cells in sputum 2-4/* in diameter. On potato decoction at 25° C, in 

 3 days, yeast cells 2-6/i, thin-walled. Old cells thick-walled with fine radial 

 striations. 



On Sabouraud agar, colonies ocliraceous, circular, soon flowing. On potato 

 decoction, deposit of yellowish flocci, disappearing on shaking, no pellicle. 

 On gelatin, liquefaction of upper portion in shape of a cone. Optimum tem- 

 perature 25° C. No action on milk. Organism ferments glucose, fructose, 

 maltose, galactose, and lactose, not sucrose, mannite, dextrin, or inulin. 



ASPOROMYCES 



Asporomyces Chaborski, Recherehes sur les Levures Theromphiles et Cryo- 

 philes, These Geneve 627: 26-30, 1918. 



The type species is Asporomyces asporus Chaborski. 



Reproduce only by sprouting, the yeast cells put forth copulation canals 

 from time to time but no fusion occurs and no spores are produced. 



Asporomyces Mug-era (Mattlet) Dodge, n. comb. 



Cryptococcus Mugera Mattlet, Ann. Soc. Beldge Med. Trop. 6: 12-13, 1926. 



Frequently isolated from stools of dysentery patients in Belgian Congo. 



In potato decoction, small spherical yeast cells with a small oil globule, 

 about 3/x in diameter in 3 days, very old cells up to Ifi, spherical with the wall 

 thick and somewhat warted. Copulation forms observed between cells about 

 4/x in diameter, but no ascospores seen. 



On Sabouraud agar, colonies white, dull, circular, smooth, center of colony 

 slightly yellowish in age. In potato decoction, slight turbidity with granular 

 sediment, pellicle and ring formed. Optimum temperature 37° C. Milk, acid 

 then neutral. Gelatin not liquefied. Acid formation in glucose, fructose, 

 galactose, and sucrose. 



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