Nick Upton / Rufous milkcap (Lactarius rufus) emerging from woodland leaf litter, Gloucestershire, UK, October.

Nick Upton / Rufous milkcap fungi (Lactarius rufus) emerging from woodland leaf litter, Gloucestershire, UK, October.

Nick Upton / Woolly milkcap (Lactarius torminosus) emerging from woodland leaf litter, Gloucestershire, UK, October.

Philippe Clement / Oak milkcaps (Lactarius quietus), Belgium, October

Adrian Davies / Mild Milkcap Fungus (Lactarius subdulcis) with milk being exuded from damaged gills. Surrey, England, UK, November.

Adrian Davies / Milk cap fungus (Lactarius sp) showing drops of white milky fluid exuded from damaged gills, Surrey, England, November

Juan Manuel Borrero / Basket of edible milkcaps (Lactarius deliciosus) Pyrenees, Barclelona Province, Spain, October

Philippe Clement / Woolly milkcap / Bearded milk cap fungus (Lactarius torminosus) growing on forest floor in autumn, Belgium, October

Guy Edwardes / 2020VISION / Gills of Fleecy Milkcap (Lactarius vellereus). Bolderwood, New Forest National Park, Hampshire, England, UK, November.

Philippe Clement / Fleecy milkcap fungus (Lactarius vellereus) among autumn leaves, Belgium

George McCarthy / Milk cap fungus {Lactarius pyrogalus} amongst leaf litter, UK

George McCarthy / Ugly Milk cap fungus {Lactarius turpis} UK

George McCarthy / Rufus Milk cap fungus {Lactarius rufus} UK

George McCarthy / Fleecy Milk cap fungus {Lactarius vellereus} UK

George McCarthy / Slimy Milk cap fungus {Lactarius blennius} UK

Bengt Lundberg / Basket of summer harvested milk-cap mushrooms (Lactarius deliciosus) Sweden

Juan Manuel Borrero / Mushrooms for sale in market, Catalonia, Spain. Lactarius deliciosus and other species

Igor Shpilenok / Milkcap toadstools {Lactarius resimus} Russia.

Philippe Clement / Fleecy milkcap fungus {Lactarius vellereus} Belgium

George McCarthy / Fleecy milk cap fungus {Lactarius velereus} UK

George McCarthy / Woolly milk cap fungus {Lactarius torminosus} UK

George McCarthy / Saffron milk cap fungus {Lactarius deliciosus} UK

Juan Manuel Borrero / Edible milkcap fungi for sale {Lactarius deliciousus} in market, Catalonia, Spain

Robert Thompson / Milk cap fungus (Lactarius uvidus) Selshion Moss, County Armagh, Northern Ireland, UK, November

Yves Lanceau / Milkcap fungus (Lactarius sp) showing spore dispersal pattern over 24 hours on black card

Yves Lanceau / Milkcap fungus (Lactarius controversus) showing spore dispersal pattern over 24 hours on black card

Pascal Pittorino / Edible milkcaps (Lactarius deliciosus) in a Basket, Grands Causses Regional Natural Park, Lozere, France, November

Pascal Pittorino / Basket of Edible milkcaps (Lactarius deliciosus) Grands Causses Regional Natural Park, Lozere, France, November

Philippe Clement / Fleecy milk-cap fungus (Lactifluus / Lactarius vellereus) on the forest floor in beech woodland in autumn, France, November

Philippe Clement / Fleecy milk-cap (Lactifluus vellereus / Lactarius vellereus) on the forest floor in beech woodland in autumn, France, November