Gyromitra esculenta

"Gyromitra esculenta" is an ascomycete fungus from the genus "Gyromitra", widely distributed across Europe and North America. It normally fruits in sandy soils under coniferous trees in spring and early summer. The fruiting body, or mushroom, is an irregular brain-shaped cap dark brown in colour that can reach 10 cm high and 15 cm wide, perched on a stout white stipe up to 6 cm high.