Robert Thompson / Yellow stagshorn fungus (Calocera viscosa) Tollymore Forest, County Down, Northern Ireland, September.

Nick Upton / Young Beefsteak fungus (Fistulina hepatica) developing inside a rotten tree stump, GWT Lower Woods reserve, Gloucestershire, UK, September.

Chris Mattison / Yellow stagshorn fungus (Calocera viscosa), Ecclesall Woods, Sheffield, South Yorkshire, England, UK, October.

David Kjaer / Yellow stagshorn (Calocera viscosa) New Forest, Hampshire, UK

Matthew Maran / Beefsteak fungus (Fistulina hepatica) close up, Hampstead Heath, London, England, UK. October.

Alex Hyde / Small stagshorn fungus (Calocera cornea) growing on dead beech tree. Peak District National Park, Derbyshire, UK. November.

Alex Hyde / Yellow stagshorn fungus (Calocera viscosa) Peak District National Park, Derbyshire, UK. October.

MYN / Marc Pihet / Beef steak fungus (Fistulina hepatica), Maine-et-Loire, Loire-Anjou-Touraine Natural Park, France, October. meetyourneighbours.net project

Alex Hyde / Beefsteak fungus (Fistulina hepatica) bracket fungus growing on English Oak tree (Quercus robur). Derbyshire, UK. September.

Alex Hyde / Beefsteak Fungus (Fistulina hepatica) growing on English Oak tree (Quercus robur). Derbyshire, UK. September.

Philippe Clement / Beefsteak fungus (Fistulina hepatica), growing on a tree trunk, Belgium, October.

Philippe Clement / Close up of a Beefsteak fungus (Fistulina hepatica), showing underside, Belgium, October.