The order Lulworthiales is a group of fungi within the class Sordariomycetes, primarily known for their adaptation to marine environments. Members of this order are typically marine or estuarine fungi, often found colonizing submerged wood, algae, and other plant debris in saltwater habitats. They are ascomycetous fungi, producing flask-shaped fruiting bodies called perithecia and specialized spores adapted for dispersal in aquatic conditions. Lulworthiales play an important ecological role in the decomposition of lignocellulosic material in marine ecosystems, contributing to nutrient cycling and supporting food webs in coastal habitats. Though relatively small and specialized, this order highlights the diversity and adaptability of fungi to extreme or unique environments.