Linda Pitkin / Common earthball (Scleroderma citrinum), Abinger Roughs NT, Surrey, England, October.

Linda Pitkin / Common earthball fungus (Scleroderma citrinum), Black Park Country Park, Buckinghamshire, England, November.

David Pike / Common earthball fungus (Scleroderma citrinum), Hannicombe Wood, Dartmoor, Devon. October.

Robert Thompson / Common earthball fungus (Scleroderma citrinum), Tollymore Forest Park, Newcastle, Co. Down, Northern Ireland

Philippe Clement / Common earthballs (Scleroderma citrinum / Scleroderma aurantium) on the forest floor in autumn, France, November