TAXONOMY 



45 



Fig. 27. Spontaneous variations in a j^east, Cryptococcus pulcherrimus. Giant 

 colonies derived from a single cell. The original strain was smooth and red. 

 Rough and white variants were obtained. Sectors and secondary colonies may- 

 be seen. From L. Punkari and A. T. Henrici, J. Bad., 26, 125 (1933). 



