EREMASCACEAE IMPERFECTAE 287 



layers cells are in chains, 2.5-3.5 x 10-20//., developing by budding, chains 

 branched, cells larger at one end. Same, but less pronounced, on glucose 

 agar, malt agar, or bouillon. True mycelium in 15 days on carrot or in potato 

 decoction. Hyphae slender, 1-2/x, septate as in Mycoderma lactis. 



Maximum temperature for growth 50°-52° C, optimum temperature 35°- 

 40° C, no growth at 12° C. In 12 days at 25° C, giant colony attains size 

 of one franc piece. 



On Pollacci agar, colony irregular, white to yellowish, smooth, moist. 

 Colony on malt agar at 25° C, for 24 hours, round, sometimes elliptic or oval, 

 3-7 cm. Refractive granules fuse on fifth day. Giant cells 10/a with numerous 

 fatty granules. Growth on carrot similar. In malt extract, a grayish white 

 sediment appears in 24 hours, but no pellicle or ring in 25 days. After a 

 month, some cells tend to creep up the sides of the tube. No spores formed 

 on Gorodkova agar, carrot, or plaster block. The giant colony appears gray- 

 ish white, humid, brilliant, margin rounded and distinct, rays from center. 

 Organism does not invert sucrose; moderate fermentation of glucose, fructose, 

 and maltose, none of other sugars. Gelatin not liquefied. 



Blastodendrion cutaneum (Ota) Dodge, n. comb. 



Mycelohlastanon (Mycelorrhizoides) cutaneum Ota, Derm. "Woch. 78: 232- 

 234, 1924. 



[Oidiomyces unguium] Frei, Arch. Derm. Syphilis 129: 404-433, 1921, or- 

 ganisms of Fabry, Miinchen. Med. Woch. 65: 1557-1558, 1917; Ibid. 66: 321, 

 1918; Berendsen, Arch. Derm. Syphilis 126: 751-763, 1919; Samson, Derm. 

 Woch. 76: 473-481, 1922. 



In 24-hour-old cultures on malt agar at 25° C., cells are mostly ovoid, thin- 

 walled with large vacuole and very small oil globule. Cells, sometimes in 

 chains, usually 2-5/1, (sometimes 9/i) in diameter, 50-60/1 long, Ifi in diameter at 

 rounded end and 3/^ at point. In 10 days, cell chains have broken up, cell 

 walls are thickened, and large fat granules appear. In 30 days, they have 

 broken down into ovoid forms, interior with large vacuole and fat drops. 

 On carrots, mycelium penetrates substrate as slender cells, 2-3/t in diameter; 

 hyphae dichotomous. No pellicle on malt extract. Fermentation with glucose, 

 fructose, mannose, galactose and maltose only. 



Var. Fujii Dodge, n. var. 



Mycelohlastanon cutaneum var. 7. Fujii, Jap. Jour. Derm. Urol. 31: 959- 

 983, J5/i^5. [71-72], 1931. 



Organism isolated from an infection on the hand of a Japanese farmer. 

 Three years before the middle finger became grayish in color and translucent, 

 slightly swollen. Surface dull, edematous, erj^thematous, then cracked and 

 became vesiculose with little pruritus. Organism injected intraperitoneally 

 into mice, was fatal to most within 72 hours. 



Cells 15-13-10 X 7.5-5.8/1 in diameter, spherical, ovoid, or polyhedral. Pyri- 

 form cells show diameter of 3/i, at smaller end. Cell wall thin. On Gorodkova 



