Phosphorindigo Luminaris, named for its blue bioluminescence, is a rare species in the 'Luminous Terra' cluster within Mycenaceae, genus Phosphorindigo, order Agaricales. It has medium-sized fruiting bodies (10-25 cm), with broadly convex deep indigo to violet caps showing pulsating glow and deeply decurrent gills emitting warm amber light, creating a blue-to-orange gradient. Robust, fibrous stipes bear luminescent speckles. Bioluminescence peaks at 420-490 nm via a luciferin-luciferase enzyme system, visible as fluctuating pulses. Found exclusively in temperate forest understories (10-20°C) on decomposing hardwood, it engages in saprotrophic nutrient cycling. Spore dispersal is wind-facilitated by elevated gill structures. Its extensive mycelium decomposes lignin and cellulose, essential for ecosystem decomposition. It holds Rare Protected status for conservation.