The Tuber Uncinatum is the black truffle of Burgundy, flourish on limestone soils hardwoods and pines at altitudes up to 1300 meters. The harvest is from October to January. The flesh is hard and whitish at first, dark brown in maturity, with numerous, thin, white ramifications, which do not change color when exposed to air. At a young age is pleasant and moderate odor, while unpleasant maturity and taste reminiscent of walnuts.