Phosphorea Lumibranchia, named for its luminous gills, is a bioluminescent fungus with wavy, translucent caps 5-25 cm tall and finely ribbed gills emitting blue-purple light (420-490 nm). Its stout, flexible stipe supports the fruiting body, which sways rhythmically in canopy breezes, with a static base. Belonging to Mycophyta, order Agaricales, genus Phosphorea, it includes 10 congeners in the Noctiluca Grove clade. Bioluminescence arises from a luciferin-luciferase system in gills and cap margins, likely attracting nocturnal spore dispersers. Native to tropical rainforest canopies at 10-25°C, it decomposes lignocellulosic arboreal matter, playing a vital ecological role. Spore dispersal combines gravity and cap movement. Classified as vulnerable, it is essential for forest biodiversity and nutrient cycling.