A Grouping of the Monilias by Fermentation and Precipitin Reactions

A more reliable method for determining the fermentation of the sugars was found to be a test for the presence or absence of the sugar after a periodof incubation of four or five weeks. The monilias by fermentation of the sugars and by the precipitin tests of extracts of monilias, show three fairly definite groups : Group 1 comprises M. albicans, M. psilosis, because of its similarity in all reactions to M. albicans, and M. candida. The last-mentioned organism, though not as closely related to M. albicans as M. psilosis, is according to the aforementioned tests closely related to this group and should be classified so as to show this close relationship. Group 2 comprises M. parapsilosis which includes the monilia described by Stovall as Monilia type 1. Group 3 comprises M. Krusei which is not closely related to any of the aforementioned species.