Marie Read / Pileated woodpecker (Dryocopus pileatus) male excavating in search of food, New York, USA. Digital composite.

Ross Hoddinott / Close-up of backlit Porcelain fungus (Oudemansiella mucida) showing gills, Golith Falls, Bodin, Cornwall, UK. September.

Guy Edwardes / Amethyst deceiver (Laccaria amethystina), New Forest National Park, Hampshire, England, UK. November.

Andy Sands / Amethyst Deceiver (Laccaria amethystina) two young toadstools growing up from mossy log, Buckinghamshire, England, UK, September

Alex Hyde / Low angle view of Porcelain fungus (Oudemansiella mucida) growing on a dead Beech tree (Fagus sylvatica). Plitvice Lakes National Park, Croatia. November.

Alex Hyde / Fly (Mycophaga testacea) laying eggs on Porcelain fungus (Oudemansiella mucida) growing on dead Beech tree (Fagus sylvatica). Peak District National Park, Derbyshire, UK. October.

Alex Hyde / Porcelain fungus (Oudemansiella mucida) gills. Peak District National Park, Derbyshire, UK. October.

Linda Pitkin / Foxy spot / Spotted toughshank fungus (Rhodocollybia maculata), Abinger Roughs NT, Surrey, England, October.

Linda Pitkin / Porcelain fungus (Oudemansiella mucida) on beech tree, The Chantries, south of Guildford, Surrey, England, October.

Ross Hoddinott / Close-up of backlit Porcelain fungus (Oudemansiella mucida) showing gills, Cornwall, UK. September

Guy Edwardes / Amethyst Deceiver (Laccaria amethyst) Lewesdon Hill, Dorset, England, UK, September.

Guy Edwardes / Porcelain fungus (Oudemansiella mucida), New Forest National Park, Hampshire, England, UK, October 2017.

Guy Edwardes / Porcelain fungus (Oudemansiella mucida), New Forest National Park, Hampshire, England, UK

Paul Hobson / Porcelain fungus (Oudemansiella mucida) on tree trunk in woodland, view from below. Nottinghamshire, England, UK.

Andy Sands / Porcelain fungus (Oudemansiella mucida) growing from fallen Beech tree, Buckinghamshire, England, UK, October

Guy Edwardes / Porcelain fungus (Oudemansiella mucida), New Forest National Park, Hampshire, England, UK. October.

Robert Thompson / Amethyst deceiver (Laccaria amethystina) fungus, Peatlands Park Co. Armagh, Northern Ireland.

Philippe Clement / Amethyst deceiver (Laccaria amethystina) mushrooms in autumn forest, Belgium, September

Andy Sands / Velvet / Winter shank fungus (Flammulina velutipes) frozen in hard frost, Bedfordshire, England, UK, February. Focus Stacked Image

Andy Sands / Amethyst deceiver toadstools (Laccaria amethystina) growing up from mossy log, Buckinghamshire, England, UK, October. Focus Stacked Image

Alex Hyde / Velvet shank / Winter fungus (Flammulina velutipes), growing on dead tree. Peak District National Park, UK. December. Focus stacked image.

Colin Varndell / Porcelain / Beech tuft toadstools (Oudemansiella mucida) New Forest, Hampshire, UK October

Colin Varndell / Porcelain toadstools (Oudemansiella mucida) New Forest, Hampshire, UK, October.

Andy Sands / Porcelain fungus (Oudemansiella mucida) group of fungi growing from dead beech tree, Buckinghamshire, England, UK, October. Focus stacked image.

Matthew Maran / Porcelain fungus (Oudemansiella mucida) Hampstead Heath, London, England, UK, November.

Alex Hyde / Low angle view of Porcelain fungus (Oudemansiella mucida) growing on a dead Beech tree (Fagus sylvatica). Plitvice Lakes National Park, Croatia. November.

Alex Hyde / Porcelain fungus (Oudemansiella mucida) growing on dead Beech tree (Fagus sylvatica). Peak District National Park, Derbyshire, UK. October.

Alex Hyde / Fly (Mycophaga testacea) laying eggs on Porcelain fungus (Oudemansiella mucida) growing on dead Beech tree (Fagus sylvatica). Peak District National Park, Derbyshire, UK. October.

Alex Hyde / Fly (Mycophaga testacea) laying eggs on Porcelain fungus (Oudemansiella mucida) growing on dead Beech tree (Fagus sylvatica). Peak District National Park, Derbyshire, UK. October.

Alex Hyde / Fly (Mycophaga testacea) laying eggs on Porcelain fungus (Oudemansiella mucida) growing on dead Beech tree (Fagus sylvatica). Peak District National Park, Derbyshire, UK. October.

Alex Hyde / Porcelain fungus (Oudemansiella mucida) gills. Peak District National Park, Derbyshire, UK. October.

Alex Hyde / Porcelain fungus (Oudemansiella mucida) growing on dead Beech tree (Fagus sylvatica). Peak District National Park, Derbyshire, UK. October.

Alex Hyde / Porcelain fungus (Oudemansiella mucida) on the underside of a dead beech tree branch. Peak District National Park, Derbyshire, UK. September.

Alex Hyde / Porcelain fungus (Oudemansiella mucida) on the underside of a dead beech tree branch. Peak District National Park, Derbyshire, UK. September.

Colin Varndell / Porcelain or beech tuft (Oudemansiella mucida) toadstools. New Forest, Hampshire, UK. October.

Paul Hobson / Russet toughshank (Collybia dryophila), Nottinghamshire, UK, November.

Chris Mattison / Amethyst deceiver toadstool (Laccaria amethystina), Derbyshire, UK.

Adrian Davies / Spotted toughshank (Collybia maculata) growing in a ring, Surrey, England, UK, September.

Adrian Davies / Spotted toughshank (Collybia maculata) growing in a ring, Surrey, England, UK, September.

Adrian Davies / Long exposure of a Butter cap fungus (Collybia butyracea) releasing white spores over twenty four hours, controlled conditions, Surrey, England, UK, December.

Adrian Davies / Butter cap mushroom (Collybia / Rhodocollybia butyracea) UK, November

Adrian Davies / Butter cap mushroom (Collybia / Rhodocollybia butyracea) UK, November

Adrian Davies / Butter cap mushrooms (Collybia / Rhodocollybia butyracea) UK, November

Yves Lanceau / Fungi (Baeospora / Collybia myosura) growing on a fircone, showing spore dispersal pattern over 24 hours on black card

Philippe Clement / Spotted toughshank fungus (Collybia / Rhodocollybia maculata) in coniferous forest, Belgium

Philippe Clement / Spotted toughshank fungus (Collybia / Rhodocollybia maculata) Belgium

Ross Hoddinott / RF- Looking up under the gills of toadstools of Porcelain fungus (Oudemansiella mucida), Cornwall, UK. (This image may be licensed either as rights managed or royalty free.)

George McCarthy / Spotted tough-shark fungus {captiveollybia maculata} UK

George McCarthy / Spindle shank fungus {captiveollybia fusipes} UK