This research provides a comprehensive analysis of mushroom species in the genus Armillaria found in China. The study combines traditional mating tests with modern DNA analysis and physical examination to identify and describe eight new species. This work is important because: • It helps scientists better understand and identify fungi that can cause tree diseases and wood decay • It establishes standard methods for identifying these fungi worldwide • It contributes to our knowledge of fungal biodiversity in China • It helps in monitoring and managing forest health • It demonstrates how different scientific approaches can work together to improve species classification