Pisolithus arhizus (Horse Dung fungus)

Pisolithus arhizus

Was known as Pisolithus tinctorius

Basidiomycota - puffball     Family: Sclerodermataceae

These usually occur in compacted soil, such as road edges and can even crack asphalt and pavements. making it one of the toughest mycorrhizal fungi.

It has mycorrhizal associations with a number of different tree species.