Philippe Clement / Close up of underside of Red cracking bolete {Boletus chrysenteron} showing pores, Belgium

Igor Shpilenok / Cep mushroom {Boletus edulis} Bryansky Les Zapovednik, Russia.

Philippe Clement / Red capped boletus fungus {Boletus rubellus} Belgium

Jan Vermeer / King Bolete (Boletus edulis) edible mushroom in autumn forest, Europe and North America

Philippe Clement / Cep / Penny bun toadstool {Boletus edulis} Belgium

Yva Momatiuk & John Eastcott / Bolete (Boletus sp) mushroom, in tundra, summer, Denali National Park and Preserve, Alaska

Yva Momatiuk & John Eastcott / Bolete (Boletus sp) mushroom, in tundra, summer, Denali National Park and Preserve, Alaska

George McCarthy / Peppery boletus fungus {Boletus piperatus} UK

George McCarthy / Cep / Penny bun fungus {Boletus edulis} UK

George McCarthy / Cep / Penny bun fungi with fused caps {Boletus edulis} UK

George McCarthy / Cep / Penny bun fungus in woodland {Boletus edulis} UK

Brian Lightfoot / Cep (Penny bun) (Boletes edulis). UK, Europe

Brian Lightfoot / Cep (Penny bun) (Boletes edulis). UK, Europe

Yva Momatiuk & John Eastcott / King Bolete (Boletus edulis) mushroom held by mushroom gatherer, Graham Island, Haida Gwaii, British Columbia, Canada

Yva Momatiuk & John Eastcott / King Bolete (Boletus edulis) mushroom, Graham Island, Haida Gwaii, British Columbia, Canada

Yva Momatiuk & John Eastcott / Bolete (Boletus sp) mushrooms on tundra in autumn, Dempster Highway, Yukon, Canada

Yva Momatiuk & John Eastcott / Scaly Hedgehog (Sarcodon imbricatus) and King Bolete (Boletus edulis) mushrooms, Yukon, Canada

Yva Momatiuk & John Eastcott / Scaly Hedgehog (Sarcodon imbricatus) and King Bolete (Boletus edulis) mushrooms, Yukon, Canada

Mark Taylor / Boletus fungus (Boletus sp) gills / pores, UK

Nick Upton / Birch bolete mushroom (Leccinum scabrum) growing in deciduous woodland leaf litter, Kenfig NNR, Wales, UK, October.

Nick Upton / Birch bolete mushroom (Leccinum scabrum) growing in deciduous woodland leaf litter, Kenfig NNR, Wales, UK, October.

Yves Lanceau / Brown birch bolete fungus (Leccinum scabrum / Boletus leucophaeus / scaber) edible, showing spore dispersal pattern over 24 hours on black card

Guy Edwardes / Brown birch bolete (Leccinum scabrum), New Forest National Park, Hampshire, England, UK. October.

Guy Edwardes / Brown birch bolete (Leccinum scabrum), New Forest National Park, Hampshire, England, UK. October.

Guy Edwardes / Cep / porcini / penny bun / king bolete (Boletus edulis), New Forest National Park, Hampshire, England, UK. October.

Guy Edwardes / Scarletina bolete (Neoboletus luridiformis), New Forest National Park, Hampshire, England, UK. October.

Guy Edwardes / Brown birch bolete (Leccinum scabrum), New Forest National Park, Hampshire, England, UK. October.

Guy Edwardes / Rooting bolete fungus (Caloboletus radicans). New Forest National Park, England, UK. October.

Guy Edwardes / Mottled bolete fungus (Leccinum variicolor). New Forest National Park, England, UK. October.

Pascal Pittorino / Ceps (Boletus edulis) in wooden crate at Cep fair in the town of Mende, Lozere, France, April

Linda Pitkin / Cep / Penny Bun fungus (Boletus edulis), , Surrey, England, August 2010.

Linda Pitkin / Bay bolete (Boletus badius), Blackheath Common, Surrey, England, September.

Linda Pitkin / Parasitic bolete fungus (Pseudoboletus parasiticus), The Chantries, south of Guildford, Surrey, England, October.

Linda Pitkin / Orange bolete fungus (Leccinum aurantiacum, formerly in Boletus), Bookham Common, Surrey, England, September.