Earthballs at Holme Fen

Earthballs at Holme Fen

Observation - Earthballs at Holme Fen - UK and Ireland. Description: Found while clearing birch seedlings/saplings that are, once again, invading a relatively dry area b

Found while clearing birch seedlings/saplings that are, once again, invading a relatively dry area being managed for heather and related ground flora: on peat. Marsh and bog isn't perhaps the best description.
They were old, with no appreciable odour, producing brown spores when squeezed.