This research describes six new species of underground mushrooms discovered in tropical forests of Southeast Asia. These fungi are unique because they produce their spores inside enclosed fruiting bodies rather than on gills like typical mushrooms. The study challenges previous assumptions that such enclosed mushrooms mainly evolved in dry climates for protection against moisture loss. Impacts on everyday life: – Improves our understanding of fungal diversity in tropical forests – Helps identify new species that may have potential applications in medicine or biotechnology – Contributes to knowledge about plant-fungal relationships in tropical ecosystems – Provides insights into fungal evolution and adaptation – Highlights the importance of protecting tropical forests as reservoirs of undiscovered species