We describe , a new cactophilic yeast species occurring in necrotic tissue of in New South Wales, Australia, and on several islands in the Caribbean Sea. The new species is homothallic and appears to occur in nature in the haploid state. After conjugation between a mother cell and a bud, four hat-shaped spores are produced that are rapidly released from the ascus. The range of guanine-plus-cytosine contents for the nuclear deoxyribonucleic acids of 22 strains is 35.7 to 36.6 mol% (average, 36.1 mol%; standard deviation, 0.2 mol%). The type strain of is strain UCD-FST 83-994.3 (ATCC 64111, CBS 7256) isolated at Discovery Bay, Jamaica.


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