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Department of Dairying, Iowa State College, Ames, Iowa
ABSTRACT
Approximately 90 cultures of pink yeasts were isolated and studied in more or less detail. These came largely from milk, cream, soft cheese and butter obtained in the vicinity of Ames. It was found that most of the cultures belonged to a common type, which is considered to be Torula glutinis, although it is smaller than the dimensions given in most of the descriptions of this organism. Two other types were encountered in small numbers and named Torula rubicunda and Torula paraglutinis to make possible their distinction from the common type. A description of Torula glutinis is given together with a list of the variations from this type shown by Torula rubicunda and by Torula paraglutinis.
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