The order Boliniales is a group of fungi within the class Sordariomycetes of the phylum Ascomycota. Members of this order are typically characterized by their production of perithecial ascomata (flask-shaped fruiting bodies) containing unitunicate asci and ascospores. They are generally saprobic, decomposing organic matter, though some may have associations with plants or other organisms. Morphologically, Boliniales species often exhibit darkly pigmented, tough fruiting bodies and may produce distinctive secondary metabolites. The order is relatively small and not as extensively studied as other fungal groups, but its members play important roles in nutrient cycling and ecosystem functioning.