Konrad Wothe / Coral fungus (Ramaria sp) Alps, Upper Bavaria, Germany, September.

Robert Thompson / Grey coral fungus (Clavulina cinerea) Gosford Forest Park, Co. Armagh, Northern Ireland. September

Guy Edwardes / Upright coral fungus (Ramaria stricta), Ebernoe Common, West Sussex, England, UK. October.

Philippe Clement / Strict-branch coral / Upright coral fungus (Ramaria / Clavaria stricta) on the forest floor, Luxembourg, August

Philippe Clement / Strict-branch coral / upright coral fungus (Ramaria / Clavaria stricta) on the forest floor, Luxembourg, August

Andy Sands / Upright coral fungi (Ramaria stricta) growing up from dead wood among Beech leaf litter, Buckinghamshire, England, UK, October. Focus Stacked Image

Cyril Ruoso / Coral tooth fungus (Hericium coralloides), Alberes Mountains, Pyrenees, France, October.

Cyril Ruoso / Coral tooth fungus (Hericium coralloides), Alberes Mountains, Pyrenees, France, October.

Cyril Ruoso / Coral tooth fungus (Hericium coralloides) Alberes mountains, Pyrenees, France. September.

Cyril Ruoso / Coral tooth fungus (Hericium coralloides), Alberes Mountains, Pyrenees, France, September.

Andy Sands / Grey coral fungi (Clavulina cinerea) coral like fungi growing up through beech leaf litter on forest floor, Buckinghamshire, England, UK, October . Focus stacked image

Andy Sands / Apricot club fungus (Clavulinopsis luteoalba) Hertfordshire, England, UK - November . Focus stacked image

Alex Hyde / Coral Fungus (Ramaria abietina) growing in coniferous woodland. Nordtirol, Austrian Alps. August.

Alex Hyde / Upright coral fungus (Ramaria stricta) Plitvice Lakes National Park, Croatia. November.

Alex Hyde / Upright coral fungus (Ramaria stricta) Plitvice Lakes National Park, Croatia. November.

Colin Varndell / Fungus (Ramaria stricta) New Forest, Hampshire, UK September.

Alex Hyde / Golden spindles fungus (Clavulinopsis fusiformis) Sherwood Forest National Nature Reserve. Nottinghamshire, UK. October.

Adrian Davies / Upright Coral Fungus (Ramaria stricta), Surrey, UK, October.

Adrian Davies / Coral Spot Fungus (Nectria cinnabarina) on branch, England

Adrian Davies / Coral Spot Fungus (Nectria cinnabarina) on branch, England

Suzi Eszterhas / Coral fungus growing on rainforest floor, Danum Valley Conservation Area, Malaysia

Martin Gabriel / Coral Fungus (Ramaria sp.) growing on forest floor. Near Kelheim, Bavaria, Germany, October.

Martin Gabriel / Coral Fungus (Ramaria sp.) growing on forest floor. Near Kelheim, Bavaria, Germany, October.

Kerstin Hinze / Upright coral ramaria fungus (Ramaria stricta) Querumer forest Brunswick, Lower Saxony, Germany, October

Niall Benvie / Coral spot fungus (Nectria sp) growing on rotting tree trunk, Angus, Scotland, UK, November

Eric Baccega / Toothed coral fungus (Hericium Coralloides) growing on tree. Cap Breton Highlands National Park, Nova Scotia, Canada, September

Eric Baccega / Toothed coral fungus (Hericium Coralloides) growing on tree. Cap Breton Highlands National Park, Nova Scotia, Canada, September

Adrian Davies / Upright Coral fungus (Ramaria stricta) in leaf litter, Sussex, England, UK, October

Adrian Davies / Upright Coral (Ramaria stricta) in leaf litter, Sussex, England, UK, October

Robert Thompson / White coral fungus (Clavulina cristata) amongst moss, Clare Glen, County Armagh, Northern Ireland, UK, October

Philippe Clement / Coral spot (Nectria cinnabarina) fungus on branch, Belgium

Juergen Freund / Close up of (Acropora sp) coral fungus coral, Great Barrier Reef, Australia

Adrian Davies / Toothed coral fungus (Hericium coralloides) on fallen Beech branch, Endangered species, Sussex, England

Adrian Davies / Toothed coral fungus (Hericium coralloides) on fallen Beech branch, Endangered species, Sussex, England

Robert Thompson / Coral spot fungus {Nectria cinnabarina} growing on recently cut Rhododendron stump, Annagarriff Wood NNR, County Armagh, Northern Ireland

Norbert Wu / Mushroom Coral (Fungiidae) don't show flourescence as much when illuminated by the light of a camera flash, 40 feet deep, Komodo Island, Indonesia. Sequence 2 of 2

Norbert Wu / Mushroom Coral (Fungiidae) show fluorescence (and not) under normal daylight filtered by seaswater, 40 feet deep, Komodo Island, Indonesia. Sequence 1 of 2

Duncan Mcewan / White Coral fungus (Clavulina cristata) Scotland

Nigel Bean / Yellow coral fungus {Ramaria sp} Austrian tyrol, Alps, Europe

Nigel Bean / Coral fungus {Ramaria sp} Austrian tyrol, Alps, Europe

Duncan Mcewan / Coral fungus {Clavulina sp} in coniferous woodland. Scotland, UK

John Waters / Coral tooth fungus {Hericium coralloides} Bialowieza National Park, Poland

Philippe Clement / Grey coral fungus {Clavulina cinerea} among beech leaves, Belgium

John Waters / Coral Tooth Fungus (Hericium coralloides) on fallen log Bialowieza National Park, Poland

George McCarthy / Grey coral fungus {Clavulina cinerea} UK

Duncan Mcewan / Coral fungus {Clavulina sp} in coniferous woodland. Scotland, UK

George McCarthy / Toothed coral fungus {Hericium coralloides} Sussex, UK

Duncan Mcewan / White coral fungus in conifer leaf litter {Clavulina cristata} Scotland, UK

Jaymi Heimbuch / White Coral Fungus (Clavulina cristata) mushroom, Oregon

Robert Thompson / Coral spot fungus {Nectria cinnabarina} growing on recently cut Rhododendron stump, Annagarriff Wood NNR, County Armagh, Northern Ireland

Ross Hoddinott / Upright coral fungus (Ramaria stricta) growing on mossy stump, Bolderwood, The New Forest, Hampshire, UK. November.

Alex Hyde / Meadow coral (Clavulinopsis corniculata) fungus, Peak District National Park, Derbyshire, UK. November.

Robert Thompson / White coral fungus (Clavulina coralloides) Pomeroy Forest, County Tyrone, Northern Ireland.

Guy Edwardes / Coral spot fungus (Nectria cinnabarina) on deadwood, Perthshire, Scotland, UK. October.

Guy Edwardes / Upright coral fungus (Ramaria stricta). Devon, England, UK. October.

Guy Edwardes / Upright coral fungus (Ramaria stricta) under autumn leaves. Devon, England, UK. October.

Guy Edwardes / Upright coral fungus (Ramaria stricta). Devon, England, UK. October.

Andy Sands / Apricot club fungus (Clavulinopsis luteoalba). Buckinghamshire, England, UK. October. Focus stacked image.

Andy Sands / Upright coral fungus (Ramaria stricta). Buckinghamshire, England, UK. October. Focus stacked image.

Jussi Murtosaari / White coral fungus (Clavulina cristata). Jyvaskyla, Central Finland. September.

Jussi Murtosaari / White coral fungus (Clavulina cristata) on log in woodland. Jyvaskyla, Central Finland. September.

Linda Pitkin / Upright coral fungus (Ramaria stricta), Penn Wood, Buckinghamshire, England, November 2013.

Will Watson / Coral Spot (Nectria punnicea var. ilicis) an Ascomycota fungus on Holly (Ilex aquifolium) bark, ancient semi-natural woodland, Herefordshire Plateau, England, February.