Hydropus moserianus

About

Hydropus moserianus is a species of agaric fungus in the family Marasmiaceae, first described in 1983 from collections in the Netherlands, and since recorded from Belgium. It is a small ground-dwelling fungus with a dark greyish-brown cap and widely spaced gills that run down its thin stipe. Unlike many related species that grow on wood, this fungus is found in terrestrial habitats including coastal dunes and forest soils.

Summary from Wikipedia