SCOTLAND: The Big Picture / Red squirrel (Sciurus vulgaris) sitting on Chicken of the Woods fungus (Laetiporus), Cairngorms National Park, Highlands, Scotland, UK, June.

Nigel Cattlin / Giant polypore (Meripilus giganteus) at base of diseased Pedunculate oak (Quercus robur) tree. Berkshire, England, UK. August.

Colin Varndell / Giant polypore fungus (Meripilus giganteus) fruiting at base of mature Beech (Fagus sylvatica) tree. Dorset, England, UK. October.

Adrian Davies / Cauliflower fungus (Sparassis crispa). Surrey, England, UK.

Adrian Davies / Cauliflower fungus (Sparassis crispa) at base of Pine tree. Surrey, England, UK.

Adrian Davies / Cauliflower fungus (Sparassis crispa) at base of Pine tree. Surrey, England, UK.

Nick Upton / Horse's hoof / Tinder fungus (Fomes fomentarius) growing on a rotten Downy birch (Betula pubescens) tree trunk which a woodpecker has drilled a hole into, Muraka Forest reserve, Estonia, April

Paul Hobson / Horse shoe fungus (Fomes fomentarius) on dead Birch (Betula sp). Nottinghamshire, England, UK. August.

Philippe Clement / Chicken-of-the-woods (Laetiporus sulphureus) fungus in early stage growing on dead tree stump in summer, France, July

Philippe Clement / Artist's bracket fungus (Ganoderma applanatum / Ganoderma lipsiense) on tree trunk, Belgium, October

Colin Varndell / Fruiting body of giant Polypore fungus (Meripilus giganteus) Dorset, England, UK. August.

Bruno D'Amicis / Autumn colours and ancient Beech (Fagus sylvatica) tree with Tinder fungus (Fomes sp.) growing on its trunk in Coppo del Principe old-growth Beech forest. Abruzzo, Lazio and Molise National Park / Par...