Luminomyces resplendens, from Latin 'luminis' (light) and 'resplendens' (shining), is a bioluminescent fungus of the Arboreal Aurantica cluster. It has funnel-shaped, deeply concave caps (10-25 cm tall) with ruffled margins, pearlescent translucency, and orange-amber hues with iridescent speckles. Sturdy, pale, veined stipes support caps with dense, gill-like hymenophores for spore dispersal. Bioluminescence (470-530 nm) likely stems from a luciferin-luciferase system, showing pulsating inner cap glow intensified centrally by oxygen-driven reactions. Native to rare tropical cave systems (10-20°C), it colonizes decaying wood on cave walls and debris. Taxonomically in a family of saprotrophs specialized in lignocellulose degradation, its pulsating fruiting bodies optimize air currents for spore release. Extensive mycelia decompose organic substrates, sustaining cave ecosystem vitality as a rare, ecologically significant subterranean luminescent fungus.