Luminarius Noctiglo, a rare bioluminescent fungus in the Aetherium Arborescens cluster (family Aetheriaceae, genus Aetherium, order Agaricales), exhibits a 5-25 cm immobile fruiting body with a convex to flattened blue-green cap covered in orange wart-like tubercles. Bright orange luminescence (470-530 nm) originates from adnate gills and tubercles, driven by a luciferin-luciferase reaction. The cylindrical, fibrous stipe shows longitudinal striations and blue-green tint. Native to tropical rainforest canopies, it thrives on decomposing wood at 5-25°C. As a lignocellulosic decomposer, it aids nutrient cycling and microhabitat diversity. Bioluminescence may attract nocturnal arthropods, enhancing wind-driven spore dispersal and ecosystem function.