The order Agaricostilbales is a small group of basidiomycetous fungi within the class Agaricostilbomycetes (phylum Basidiomycota), characterized mainly by their simple, often yeast-like forms and production of slender, stalked basidia. Members of this order are typically saprotrophic, living on decaying plant material, though some are associated with insects or other fungi. They reproduce sexually via basidiospores and may also propagate asexually through budding, reflecting their close relationship to yeast-like lifestyles. While not as well-known as other fungal orders, Agaricostilbales play a role in nutrient cycling and showcase the morphological diversity within Basidiomycota.