Nick Upton / Rusty / Cinnamon porecrust fungus (Phellinus furruginosus / ferrea) growing on the underside of a deciduous tree branch, GWT Lower Woods reserve, Gloucestershire, UK, November.

Adrian Davies / Tiger's Eye Fungus (Coltricia perennis) Surrey, England, UK, November.

Will Watson / Oak Bracket Fungus (Inototus dryadeus) growing on the base of Sessile Oak (Quercus petrea), Ceredigion, Wales, England, UK, August.

Will Watson / Oak Bracket Fungus (Inototus dryadeus) growing on the base of Sessile Oak (Quercus petrea), Ceredigion, Wales, England, UK, August.

Staffan Widstrand / Tiger's eye fungus (Coltricia perennis) growing on forest floor, Iggejaur-Varjisan-Labtjevare. Norrbotten, Sapmi, Lapland, Sweden. August.

Nick Upton / Shaggy bracket (Inonotus hispidus) growing on Ash (Fraxinus excelsior) tree trunk, Wiltshire, UK. September.

Robert Thompson / Oak bracket fungus (Inonotus dryadeus) close up of liquid droplets that it exudes, Gosford Forest Park, County Armagh, Northern Ireland. August.

Robert Thompson / Oak bracket fungus (Inonotus dryadeus) close up of liquid droplets that it exudes, Gosford Forest Park, County Armagh, Northern Ireland. August.

Nick Upton / Cinnamon porecrust fungus (Phellinus ferreus) growing on underside of European hazel (Corylus avellana) tree branch, Kenfig NNR, Wales, UK, October.

Guy Edwardes / Oak bracket / weeping polypore fungus (Inonotus dryadeus) close up of drops on pores, Uplyme, Devon, England. August.

Guy Edwardes / Oak bracket / weeping polypore fungus (Inonotus dryadeus) pores, Uplyme, Devon, England. August.

Guy Edwardes / Oak bracket / weeping polypore fungus (Inonotus dryadeus) pores, Uplyme, Devon, England. August.