Lepku

Lepku is a fictional species of bioluminescent fungus described in the world-building setting of Veridia. It appears in field guides and lore within this imaginary universe and is commonly referenced in discussions of nocturnal forest life.

Physically, lepku forms small fruiting bodies about 1–3 cm across, cup- to funnel-shaped, with a translucent cap. The color ranges from amber to pale green, and the surface often bears a fine, powdery layer. Its most distinctive feature is a soft blue-green bioluminescence that glows brightest at night and fades with age. The underside may show delicate gill-like structures where spores are produced.

Taxonomically, lepku is placed in the fictional genus Lepkus within the family Lepkaceae, order Leptales. This placement is specific to the Veridian biome and is not used in real-world mycology.

Habitat and ecology: lepku grows on decaying hardwood in cool, humid microhabitats, typically in clusters on moss-covered logs and thick duff. It is saprotrophic, meaning it primarily decomposes organic matter, and it can contribute to nutrient cycling in its fictional ecosystem. Reproduction occurs via spores released from microscopic surfaces on the underside of the fruiting body, dispersed by wind and raindrop splash.

Cultural significance: in Veridian folklore, lepku's glow is said to guide travelers through foggy forests. Artisans sometimes incorporate dried lepku rims into lanterns, and scientists within the fiction explore its luminescence as a potential biosensor.

Conservation status and discovery are contextual to the Veridian setting, with fictional accounts noting discovery by field naturalist Ari N. Kael in the mid-22nd century.