Scientists in Korea discovered two previously unknown types of black yeast fungi living inside galls (abnormal growths) on Chinese magnolia vines caused by tiny gall midge insects. Using genetic testing and microscopic examination, they identified these as entirely new species of fungi. These fungi appear to have beneficial relationships with their host plants, potentially helping them grow better and resist environmental stress. This discovery adds to our understanding of the diverse fungal species in Korea and their interactions with plants and insects.