Tuber Uncinatum - also called the Bourgogne truffle, the Champagne truffle, the Lorraine truffle or the Haut-Marne truffle - is a really high-quality truffle. It's also called the grey truffle because of its deep brown colour tending towards black. Its chocolate-coloured flesh has a delicate perfume which is less strong than the Perigord truffle. /// Unlike the black Perigord truffle - a mushroom found in open clearings because it enjoys the warmth – the Uncinatum prefers shady areas. Generally, natural truffle areas will be established in formerly cultivated areas which the forest has re-taken. /// The natural geographic zone of the Tuber Uncinatum extends from the Mediterranean as far as Russia. Its capacity for adaptation makes it the candidate of choice for truffle culture in orchards.