Luminifungus Chromatica, from Latin 'luminis' (light) and 'chromatica' (colored), is a bioluminescent fungus native to temperate forest understories. Its agaricoid fruiting body has a 10-25 cm purplish-pink cap with irregular speckling and densely spaced golden-yellow decurrent gills glowing blue (420-490 nm). The cylindrical stipe (15-50 g) has longitudinal striations. Bioluminescence arises via a luciferin-luciferase reaction in gills, likely attracting spore dispersers. Thriving at 10-25°C on decaying hardwood, it acts as a saprotrophic decomposer within the Irido Myco cluster. Classified in Mycenaceae, genus Luminifungus, order Agaricales, it disperses spores aided by bioluminescence-enhanced wind currents. Its extensive mycelium recycles lignocellulose, crucial in forest ecosystems. It is vulnerable, needing conservation among ~200 clade species.