EREMASCACEAE IMPERFECTAE 227 



When growth reaches edge of tube, hyphae push up along the glass. Below, 

 abundant development of hyphae. At 25° on same medium, colony covered 

 by short white velvet which forms concentric zones of different thicknesses 

 with wrinkled center and humid zone of growth. On gelatin, velvety, white 

 growth at surface with large rays from center toward edge. In potato decoc- 

 tion, dense deposit of yellowish, filamentous flakes. Liquid turbid and of 

 mucus consistency. Acid production with fructose, and galactose before pel- 

 licle develops. With pellicle on surface, upper portion of liquid becomes 

 alkaline but alkali production ceases if pellicle is immersed. No action on 

 glucose. In sucrose and lactose slight acid formation at first but giving place 

 to alkali by twentieth day. Trend strictly alkaline with maltose, mannite, 

 dextrin, inulin. No fermentation. Slight acidification of milk but no coagula- 

 tion. Gelatin not liquefied. 



Doubtful Position 



The following species are referred here either on account of the lack of 

 adequate descriptions or because of characters which make their presence in 

 this genus anomalous. 



Mycoderma nobile A. Sartory, R,. Sartorj?-, Meyer & Charles, Ann. Myc. 

 29: 325-338, 6 figs., 1931. 



Following a wound, organism produces a soft tumor suggesting a gumma 

 on the forearm, with vertebral metastasis. Besides the Mycoderma, cultures 

 on alkaline media showed colonies of Staphylococcus citreus, especially in 

 coagulated serum. Pathogenic for guinea pigs. 



Cells in the tissue spherical, 5/a in diameter, or ovoid, 3.5 x Ifj., no mycelium 

 observed. On carrot, long tufts of hyphae, up to 5fi in diameter, branches 

 long and slender, l-2ja in diameter. Raquet mycelium present. Sometimes 

 the branches are strongly curved, sometimes chlamydospores and arthrospores 

 are formed. 



On agar and gelatin media growth velvety at first, finally becoming 

 powdery or chalky or even moist, adherent, and viscous. On glucose media 

 there is a blackening of the medium. On glycerol agar growth luxuriant, 

 zonate, of glabrous and silky zones. On carrot, colonies whitish velvety, 

 covering the medium. Growth similar on potato but a little slower. Growth 

 only at 37° C, not at room temperature, ceasing at about the twelfth day. 

 In liquid media tough pellicle, folded, forms a ring, falls to bottom after 15-20 

 days, and a new pellicle is formed. Acid and fermentation of glucose and starch. 

 Acid with sucrose and lactose, slight fermentation with galactose and man- 

 nose, no action or assimilation of fructose or maltose. Milk coagulated and 

 digested. Gelatin not liquefied. 



Mycoderma sulfureum (Beauverie & Lesieur) Dodge, n. comb. 



Cryptococcus sulfureus Beauverie & Lesieur, Jour. Physiol. Path. Gen. 14: 

 996-998, 1912. 



