Mycogloëus Luminaris, named for its fungal origin and glowing light, is a bioluminescent fungus in the Irido Myco cluster (Basidiomycota, Agaricales). It features elongated, wavy caps (5-25 cm tall) with orange, purple, and bluish velutinous textures and delicate lamellae for wind-mediated spore dispersal. Stipes are robust, pale orange to off-white with subsurface textures. Bioluminescence (420-490 nm) arises from a luciferin-luciferase system in the caps, emitting blue-green light aiding nocturnal spore dispersal. Native to tropical rainforest understories, it grows saprotrophically on decomposing wood, contributing to nutrient cycling via lignocellulose breakdown. It is rare, closely related to 20 genus species, and vital in forest ecosystems.