TL;DR: Four new species of yeast were found in a study of the yeasts associated with insect frass underneath the bark of Tsuga heterophylla (the Pacific Coast hemlock) and it has been proposed to establish a “Candida parapsilosis Group” of species to which C. oregonensis was assigned.
Abstract: In a study of the yeasts associated with insect frass underneath the bark ofTsuga heterophylla (the Pacific Coast hemlock) four new species of yeast were found These were described asSporobolomyces singularis, Bullera tsugae, Cryptococcus skinneri andCandida oregonensis Sporobolomyces singularis is a non-pigmented species, which required an amendment of the genus definition Ballistospore formation of the new species ofSporobolomyces and ofBullera was absent on malt agar and on potato glucose agar, but positive on corn meal agar An unusual case of quantitative transgalactosylation by growing cells ofSporobolomyces singularis on lactose has been described It has been proposed to establish a “Candida parapsilosis Group” of species to whichC oregonensis was assigned