Splitgill mushroom
Schizophyllum commune
The Splitgill mushroom is a saprobic fungus with a global distribution, primarily found on decaying hardwood and occasionally softwood. It produces fan-shaped, typically greyish to whitish fruiting bodies with a distinctly fuzzy or hairy upper surface. Its most notable feature is the longitudinal splitting of the gills on the underside, which curl inward during dry conditions to protect the spore-producing surface. It is considered one of the most widely distributed fungi on Earth and is remarkably resilient to environmental stress.

Details
Identification
Fan- or shell-shaped cap (1-4 cm), upper surface greyish-white and densely fuzzy/hairy, underside with longitudinally split gills, tough texture.
Diet
Saprotrophic; decomposes lignin and cellulose in dead wood, causing white rot.
Overwintering
Survives as mycelium within the wood or as desiccated, revivable fruiting bodies.
Ecology
Ecological role
Important primary decomposer in forest ecosystems, breaking down organic matter and making nutrients available for the cycle.
Natural predators
Various mycetophagous insects (e.g., beetle larvae) and slugs.
Competitor species
Other wood-decay fungi such as the Turkey Tail (Trametes versicolor).
Ecosystem service
Nutrient cycling (wood decomposition), soil formation.
Threats
No known threats; partially benefits from accumulations of dead wood.
Scientific profile
Profile
Distinguishing features
The unique feature is the longitudinally split gills (hence the name), which serve as a protection mechanism against desiccation. The fungus can resume spore production upon rehydration after drying out.
Habitat
Light-exposed locations, forest edges, clear-cuts, parks, and gardens. Frequently found on sun-exposed, fallen or standing deadwood.
Reproduction
Sexual reproduction via basidiospores. The species possesses a complex heterothallic mating system with over 23,000 different mating types.
Protection & threats
Status not on standard scale
Main threats
No threats known; the species is globally distributed and very common.
Conservation measures
No conservation measures required.