Black Perigord truffle
Tuber melanosporum
A highly prized ectomycorrhizal fungus cultivated by inoculating the roots of host oak and hazelnut saplings, which fruit underground years later.
Family
Tuberaceae
Soil types
Grown in well-drained, alkaline (limestone-derived) soils in symbiosis with host tree roots, unlike saprotrophic mushrooms grown on substrate.