Andy Sands / Common stump brittlestem (Psathyrella piluliformis) Buckinghamshire, England, UK, October. Focus stacked image

Philippe Clement / Brittlecap / Tufted brittlestem fungus toadstools {Psathyrella hydrophila / piluliformis} Belgium

Philippe Clement / Brittlecap toadstools {Psathyrella hydrophila / piluliformis} Belgium

Nick Upton / Common stump brittlestem (Psathyrella piluliformis) cluster growing at base of Beech (Fagus sylvatica) tree, New Forest National Park, Hampshire, UK, October.

Guy Edwardes / Common Stump bristlestem fungi (Psathyrella piluliformis) large cluster fruiting on fallen Beech trunk, New Forest National Park, Hampshire, England, UK. Focus stacked image. October.

Guy Edwardes / Common Stump bristlestem fungi (Psathyrella piluliformis) large cluster fruiting on fallen Beech trunk, New Forest National Park, Hampshire, England, UK. Focus stacked image. October.

Guy Edwardes / Common Stump bristlestem fungi (Psathyrella piluliformis), fruiting on fallen Beech trunk, New Forest National Park, Hampshire, England, UK. October.

Robert Thompson / Common stump brittlestem toadstool (Psathyrella piluliformis), Clare Glen, Tandragee, County Armagh, Northern Ireland, UK.

Linda Pitkin / Common stump brittlestem funfi (Psathyrella piluliformis), Abinger Roughs NT, Surrey, England, October.