The Family Agaricostilbaceae is a group of fungi within the phylum Basidiomycota, class Agaricostilbomycetes. Members of this family are typically microscopic, yeast-like, or filamentous fungi that are found in soil, decaying plant material, or as symbionts with other organisms. They reproduce sexually via basidia and asexually through budding or conidia, depending on the species. Agaricostilbaceae fungi are important in nutrient cycling and decomposition, contributing to ecosystem functioning, and some species are studied for their unique biochemical and morphological traits.