This research examined and reclassified a group of mushrooms found in Brazil’s Atlantic Forest, describing nine new species previously unknown to science. The study combined detailed physical examination of the mushrooms with DNA analysis to better understand how different species are related to each other. This work helps scientists better organize and understand fungal diversity. Impacts on everyday life: – Helps identify and catalog biodiversity in threatened forest ecosystems – Contributes to understanding the role of fungi in forest health and ecology – Provides foundation for potential future discoveries of useful compounds from fungi – Improves scientific classification systems used to study and communicate about fungi – Aids in monitoring environmental changes through fungal diversity