Piotr Naskrecki / Sac Fungus (Cordyceps sp) mycelium covering cricket that was parasitized and killed by the fungus, Sipaliwini, Surinam

Adrian Davies / Fungal mycelium, close up growing on plant vegetation, Surrey, England, UK, October

Adrian Davies / Fungal mycelium, close up growing on plant vegetation, Surrey, England, UK, October

Stephen Dalton / Honey fungus (Armillaria mellea) mycelium exposed under bark of host tree, UK

Stephen Dalton / Fungal hyphae / Mycelium (roots) under bark of rotting tree, UK

Adrian Davies / Mycelial cords / rhizomorphs of Honey fungus {Armillaria mellea} UK

SINCLAIR STAMMERS / Fungal mycelium (Fungi) growing over timber

Piotr Naskrecki / Fungus Gardening Ant (Cyphomyrmex faunulus) nest showing fungal mycelium of the fungal garden these insects cultivate in their nests, Guyana

Piotr Naskrecki / Fungus Gardening Ant (Cyphomyrmex faunulus) worker on fungal mycelium in the fungal garden these insects cultivate in their nests, Guyana

Piotr Naskrecki / Leafcutter Ant (Trachymyrmex sp) showing fungal mycelium of the fungal garden these insects maintain and feed with leaves, Guyana

Philippe Clement / Bay bolete (Xerocomus / Boletus badius) underside of cap bruising blue and mycelium visible at base of stem, Belgium

Philippe Clement / Butter cap fungus showing mycelium at base {Collybia butyracea} Belgium