The order Pezizales is a group of fungi within the division Ascomycota, commonly known as cup fungi due to their distinctive cup- or disc-shaped fruiting bodies. Members of this order are mostly saprophytic, decomposing organic matter such as soil, leaf litter, and wood, though some form ectomycorrhizal associations with plants. They produce asci—sac-like structures containing sexual spores—lined along the inner surface of the cup. Pezizales exhibit a wide range of sizes and colors, from small, inconspicuous cups to large, fleshy species like morels and truffles, some of which are highly prized as edible fungi. Their ecological role is significant in nutrient cycling, and they are studied both for their biology and economic importance in culinary and mycological contexts.