Biolumina Aurorius, a rare arboreal bioluminescent fungus of the genus Biolumina (family Omphalotaceae, order Agaricales), has translucent, pliant caps up to 15 cm tall with undulating margins and gelatinous sheens. Its dense, thin gills emit warm amber bioluminescence (470–530 nm) via a luciferin-luciferase system, contrasting pale cream to gray caps and semi-translucent, fibrous stipes. It inhabits decaying hardwood in temperate forests (5–25°C) as a saprotroph, decomposing lignocellulose and recycling nutrients. Basidiospores disperse through gill surfaces by air currents. Its extensive mycelium supports wood decay and soil enrichment. Among only ten species, B. Aurorius is a fragile component of temperate fungal biodiversity.