Photomyces prismaticus, named for its light-emitting prismatic caps, is a bioluminescent fungal species in the Luminispectra Chromagloria cluster. It features broad, undulating caps (10-30 cm) with magenta, orange, and yellow hues and veined surfaces. Gill-like, ribbed structures extend beneath, supported by a creamy white stipe. Bioluminescence emits 420-490 nm blue light outlining cap margins and veins, likely via a luciferin-luciferase system adapted to low-light aquatic habitats. Dynamic light undulation suggests physiological regulation possibly attracting dispersal vectors. Found in tropical wetland forests, P. prismaticus decomposes lignocellulosic substrates, aiding nutrient cycling. Taxonomically within genus Photomyces (Agaricales), it shares traits with other spectral bioluminescents. Spore dispersal involves mechanical release and vector mediation. The mycelium thrives in moist substrates, enhancing soil health and ecosystem biodiversity.