Geopora arenicola, commonly known as the hole in the ground truffle,[1] is a species of fungus belonging to the family Pyronemataceae. It is an uncommon species found in Europe and Uzbekistan.[2]
The fungus forms a rounded ascocarp underground on sandy loam soils. This fruit body remains subterranean for most of the year but breaks the surface in the spring to form a cream-coloured cup (apothecium) up to 3cm (01inches) across and 3 cm tall.
It is likely mycorrhizal, but it is difficult to determine the host species.[3]