Geopora sepulta (Fr.) Korf. & Burds. (illustrated 55% life size) Fruit body 1–3cm across, subglobose, subterranean, appearing on the surface when mature, resembling small insect burrows as the upper part splits open; disc cream-coloured. Spores 24–28×15–18¼, broadly ellipsoid. Asci 230×18¼. Habitat in sandy soil or silt; autumn to late spring. Very rare. Not edible. Note in my first book this species was incorrectly named Sepultaria arenicola (Lev.) Massee.