Horse Dung fungus

Pisolithus arhizus is a common ‘puffball’ species found always in association with eucalypt species. It seems to grow in dry, disturbed areas like gravelly roadsides and walking tracks. This fungus is quite common in West Gippsland.

The aptly named Horse Dung Fungus is a mycorrhizal fungus; it has a symbiotic connection with the roots of nearby eucalypt trees. It is used as a component of plant root stimulant in the horticultural trade.

The spores develop inside cell structures within the body of the fruit. As the fruit matures, it cracks open and releases the spores into the surrounding landscape.

Pisolithus arhizus is considered inedible but the viscous gel inside the fruit can be used as a dye. Other common names include Dead Man’s Foot, Dyeball and Bohemian Truffle.