This research provides an updated classification system for an important family of fungi that includes many plant pathogens and beneficial species. The study examined over 1,100 fungal specimens to better understand their relationships and establish more accurate ways to identify them. This work impacts everyday life in several ways: • Helps farmers and agricultural workers better identify and manage crop diseases caused by these fungi • Improves food security by enabling better control of plant pathogens that affect important crops • Provides tools for more accurate and faster identification of potentially harmful fungi during quarantine inspections • Advances our understanding of fungal diversity in soil and other environments • Enables development of better biological control agents using beneficial species from this fungal family