Fosforilla

Fosforilla is a fictional genus of bioluminescent fungi used in speculative biology and science fiction. The name combines the roots for light, from Latin and Greek, with the diminutive suffix -illa, suggesting a small glowing organism. It is not recognized by real-world taxonomic databases.

Typically described as small, stalked fruiting bodies with a conical to bell-shaped cap ranging from 0.5 to 2 centimeters, fosforilla specimens are noted for a persistent greenish-yellow glow (luminance peaking in the 520–560 nm range). The glow is produced by a luciferin–luciferase system, and may continue for several hours after sunset. The mycelium remains hidden in leaf litter or decaying wood.

Fosforilla is placed in tropical and subtropical forests in fictional accounts, often found on decaying hardwoods and rich soil layers. In some narratives, its distribution is described as patchy, forming localized rings around fallen logs or stumps.

As a saprotroph, fosforilla would contribute to organic matter breakdown. The luminescence is sometimes explained as an ecological signal to attract nocturnal detritivores or as a byproduct of metabolism. Reproduction would occur via small spores released from basidia within the fruiting body.

Because it is fictitious, fosforilla serves as a device for exploring luminescence and ecosystem interactions in fiction and education. Some writers imagine potential applications in living signage or biosensors, though there are no real specimens or practical protocols associated with fosforilla.