Comatricha nigra

This species has numerous upright globose sporangia on quite long black stalks. The head of a sporangium has a network of interconnecting thin threads. Spores are spherical, faintly warty and dark brown. The plasmodium is a shiny white.

Unless identified by a recognised expert, a photo is required. If the photo doesn't show the key ID features then in the comments box describe the size and identifying characters you have observed.

Found on decaying wood. 

Autumn and winter.

Widespread and fairly frequent in Britain.

Occasional in Leicestershire and Rutland, with very few recent records.