CRYPTOCOCCUS CAVICOLA 353 



CRYPTOCOCCUS PARASITARIS (Trabut) Vuillemin 1 

 Syn.: SACCHAROMYCES PARASITARIS. Trabut 



Discovered by Trabut on the grasshopper (Acridium peregrinwri), 

 upon which it is a parasite, this species has round cells, 3 to 4/z, 

 provided with refractive droplets. It does not ferment dextrose. 



CRYPTOCOCCUS PSORIARIS. Rivolta 

 Syn.: SACCHAROMYCES PSORIASIS. Cattaneo 



This yeast, encountered by Rivolta 2 in a case of dermititis, has 

 round cells from 28 to 30 jit, a double membrane, and is often united 

 in chains of 6 to 8 cells. 



CRYPTOCOCCUS CAPILLITII. Vuillemin 

 Syn.: SACCHAROMYCES CAPILLITII. Oudemans and Pekelharing 



This yeast has been described by Saccardo 3 as a spherical yeast 

 from 2.5 to 8/z in diameter, of a homogeneous color, with a thick 

 membrane. It seems to bud. Blanchard considers it an Oomycete, 

 and Guegen thinks that it is more closely related to the Algae. 



CRYPTOCOCCUS OVALIS. Vuillemin 

 Syn.: SACCHAROMYCES OVALIS. Bizzozero 



This organism was discovered by Malasses. The cells are shaped 

 like a gourd (3.3 to 3.5 x 2.3 to 2.6/-t). They are made up of a large 

 part surmounted by a bud. The membrane is thin and the contents 

 include a large brilliant granule. Bizzozero considers this parasite 

 as a yeast and gives the name of Saccharomyces ovalis to it. It has 

 not been secured in culture. It was found in association with the pre- 

 ceding species and according to Saccardo may be another form of it. 

 The recent researches of Dold 4 seem to indicate that this organism 

 may not be a yeast but a bacterium. 



CRYPTOCOCCUS CAVICOLA. Arthault 



This species has been found by Stephen Arthault 5 in a pulmonary 

 cavity. It is cultivated on potato and on agar, giving moist colonies, 



1 Guegen, F., Les champignons parasites de 1'homme et des animaux, These 

 agreg. Pharmacie, Paris, 1902. 



2 Rivolta, Parasiti vegetali, 18-73. 



3 Saccardo, P. A., Sylloge fangorum, v. VII, p. 921. 



4 Dold, H. On the so-called Bacillus (Dermatophyton Malasserzi). Para- 

 sitolog. 3, 1910. 



6 Arthault, Flore et faune des cavernes pulmonaires, Arch. d. Paras., 1899. 



