348 MEDICAL MYCOLOGY 



Young cells with refractive protoplasm, no oil globules, pellicle slimy, usually arising as 

 separate floating islets which are confluent, glassy but tough, sediment more or less gelatinous. 

 Ciferri So Redaelli (1929) still further modify it by excluding species with agglomerations of 

 cells or pseudomycelium. Since so many of the species are pink or reddish, these authors 

 have discarded Berlese's Tarulopsis rosea as the type species in favor of Torula gelatinosa 

 Will, since they claim that the adoption of such a poorly described siiecies would be a perma- 

 nent source of error. 



They characterize their genus as follows: Cells ellipsoid, spherical, or 

 irregular, never citriform or catenulate, rarely, and this particularly in liquid 

 cultures, with formation of irregular sprouting agglomerates of crowns and 

 elongated cells, cells continuous, hyaline or light colored, not forming endo- 

 spores, mycelium or pseudomycelium. Cell wall thin, young cells without 

 the oil globules which may appear in old age ; superficial vegetation with giant 

 colonies according to Will's Type III; little or no fermentative power, usually 

 forming acids on sugar media ; producing hydrogen sulphide and coagulating 

 milk ; producing a carotin pigment, hence colors some shade of orange or red. 



Key to Species 



Cells large, 8-12;tt, spherical to elongate. 



Glycerol assimilated. T. cavicola. 



Glycerol not assimilated. T. bronchialis. 



Cells smaller, rarely over 8fi. 

 No ring to liquid media. 



Gelatin liquefied, colony rose becoming the color of eosin 



powder. T. mena. 



Gelatin not liquefied. 



Milk coagulated, colony orange yellow. T. Sangiorgii. 



Milk not coagulated, colony reddish orange. T. mitis. 



Ring and often floating islets but no pellicle on liquid media. 

 Gelatin liquefied. 



Nitrate assimilated. T. glutinis. 



Nitrate not assimilated. 



Cells long ellipsoid, often curved, milk not clotted. T. rubra. 

 Cells spherical or short ellipsoid, milk clotted. 



Cells 4-5 X 5-7fi. T. Sanniei. 



Cells 2.5-4 X 4-6/x, more slender. T. mucilaginosa. 



Tomlopsis cavicola (Artault) Almeida, Annaes Fac. Med. Sao Paulo 

 9: 10, 1933. 



Cryptococcus cavicola Arthault, Arch, de Parasitol. 1: 259-265, 1898. 



(Vuillemin, Rev. Gen. Sci. Pures Appl. 12: 740, 1901, suggests that this 

 is close to or a strain of Saccharomyces Fresenii or 8. roseus.) 



Isolated from pseudotuberculosis in lung of guinea pig. Only slightly 

 pathogenic to rabbit on subcutaneous injection. Inoculated into eye of rab- 

 bit, it produced lesion from which organism was reisolated. 



Cells ovoid, 8-12yM, solitary or, rarely, in chains of three. 



On agar, growth slow, suggesting Serratia marcescens (Bacillus prodigi- 

 osus). On potato, colony similar to that on Raulin's, but thicker, redder, 



