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

Nigel Cattlin / Honey fungus (Armillaria mellea) rhizomorphs / fungal cords on dead core of rotten tree. Berkshire, England, UK. March.

Adrian Davies / Honey fungus (Armillaria mellea) at base of tree. Red cross on tree indicates it is diseased and will be cut down. Surrey, England, UK. October.

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.

Adrian Davies / Honey fungus (Armillaria mellea) Sussex, England, UK, October.

Adrian Davies / Honey fungus (Armillaria mellea) rhizomorphs / boot laces / mycelium. Sussex, UK, November.

Nick Upton / Large clump of Honey fungus (Armillaria mellea) growing on a treestump in deciduous woodland, near Olsztynek, Masuria, Poland, September.