Philippe Clement / Sulphur tuft fungus (Hypholoma fasciculare) close up of caps of a cluster on tree trunk in autumn forest, Belgium, October

Ingo Arndt / Sulphur Tuft (Hypholoma fasciculare) mushrooms, Germany

Guy Edwardes / 2020VISION / Sulphur Tuft (Hypholoma fasciculare) cluster. Bolderwood, New Forest National Park, Hampshire, England, UK, October.

Guy Edwardes / 2020VISION / Sulphur Tuft (Hypholoma fasciculare) toadstools. Bolderwood, New Forest National Park, Hampshire, England, UK, October. Did you know? Only about 5% of all fungi have been formally classified.

Guy Edwardes / 2020VISION / Sulphur Tuft (Hypholoma fasciculare) toadstools, Bolderwood, New Forest National Park, Hampshire, England, UK, November.

Gary K. Smith / Sulphur tuft fungi (Hypholoma fasciculare) amongst fallen beech leaves Norfolk, UK, October.

Gary K. Smith / Woodland / Sulphur tuft fungi (Hypholoma fasciculare) growing on rotting tree stump, Norfolk, UK, October.

Adrian Davies / Sulphur Tuft Fungus (Hypholoma fasciculare) growing in clusters, Sussex, England, UK, September

Vincent Grafhorst / Sulphur Tuft (Hypholoma fasciculare) mushrooms, Ommen, Overijssel, Netherlands

Vincent Grafhorst / Sulphur Tuft (Hypholoma fasciculare) mushrooms, Ommen, Overijssel, Netherlands

Vincent Grafhorst / Sulphur Tuft (Hypholoma fasciculare) mushrooms, Ommen, Overijssel, Netherlands

Philippe Clement / Sulphur tuft fungus (Hypholoma fasciculare / Psilocybe fascicularis) Belgium

Guy Edwardes / Sulphur tuft (Hypholoma fasciculare) fungus, Dorset, England, September

Philippe Clement / Sulphur tuft fungus (Hypholoma fasciculare) Belgium

John Waters / Sulphur tuft fungus {Hypholoma fasciculare} growing from dead tree stump on forest floor, mixed woodland, Mendip Hills AONB, Somerset, UK

Silvia Reiche / Sulphur Tuft (Hypholoma fasciculare) mushrooms, Hoogeloon, Netherlands

Adrian Davies / Sulphur tuft fungus {Hypholoma fasciculare} UK

Brian Lightfoot / Sulphur tuft toadstools (Hypholoma fasciculare) Scotland

Brian Lightfoot / Sulphur tuft fungi (Hypholoma fasciculare)

Duncan Mcewan / Sulphur tuft fungus {Hypholoma fasciculare} in conifer plantation, Oct, Inverness-shire, Scotland

Niall Benvie / Sulphur Tuft toadstools (Hypholoma fasciculare) Scotland

Philippe Clement / Child looking at circle of Sulphur tuft fungus (Hypholoma fasciculare) Belgium

Philippe Clement / Child looking at circle of Sulphur tuft fungus (Hypholoma fasciculare) Belgium

Philippe Clement / Sulphur tuft fungus (Hypholoma fasciculare) on decaying wood, Belgium

George McCarthy / Sulphur tuft fungi (Hypholoma fasciculare) in woodland England Surrey in October

Philippe Clement / Sulphur tuft fungus on decaying wood {Hypholoma fasciculare} Belgium

Philippe Clement / Sulphur tuft fungus on decaying wood {Hypholoma fasciculare} Belgium

Philippe Clement / Sulphur tuft fungus on decaying wood {Hypholoma fasciculare} Belgium

George McCarthy / Sulphur tuft fungus {Hypholoma fasciculare} UK - toadstools

Duncan Mcewan / Sulphur tuft fungi on fallen Beech trunk, Scotland (Hypholoma fasciculare)

Nigel Bean / Sulphur tuft fungus in woodland, England, UK

Nigel Bean / Sulphur tuft fungus, woodland, England, UK

Nigel Bean / Sulphur tuft fungus caps, woodland, England, UK

Wild Wonders of Europe / Oxford / Sand dunes encroaching on Pine trees (Pinus sp) with Marram grass (Ammophila arenaria) growing n dunes, Doana National & Natural Park, Huelva Province, Andalusia, Spain, May 2009

Nick Upton / Sheep's bit / Sheep's bit scabious (Jasione montana) flowering on a stable coastal sand dune among Marram grass (Ammophila arenaria), Gower Peninsula, Wales, UK, July.

Nick Upton / Sheep's bit / Sheep's bit scabious (Jasione montana) flowering on a stable coastal sand dune among Marram grass (Ammophila arenaria), Gower Peninsula, Wales, UK, July.

Nick Upton / Sheep's bit / Sheep's bit scabious (Jasione montana) flowering on a stable coastal sand dune among Marram grass (Ammophila arenaria), Gower Peninsula, Wales, UK, July.

Alex Hyde / Sand wasp (Ammophila sp) female with a caterpillar that has been stung and paralysed, Midi-Pyrenees, France, August.

Nick Garbutt / Fox-tail Grass (Alopecurus sp) in flower, blowing in the breeze, Shores of Hudson Bay, Manitoba, Canada, late September

Wild Wonders of Europe / Oxford / Sand dunes encroaching on Pine trees (Pinus sp) with Marram grass (Ammophila arenaria) growing on dunes, Doñana National & Natural Park, Huelva Province, Andalusia, Spain, May 2009

Harley Betts / European Beachgrass (Ammophila arenaria) topped dune with rippled sand, Farewell Spit, Golden Bay, New Zealand

Colin Monteath / European Beachgrass (Ammophila arenaria) and Pingao Grass (Desmoschoenus spiralis), Mason Bay Sand Dunes, Rakiura National Park, Stewart Island, New Zealand

Colin Monteath / European Beachgrass (Ammophila arenaria) and Pingao Grass (Desmoschoenus spiralis) with hiker in Mason Bay Sand Dunes, Rakiura National Park, Stewart Island, New Zealand