Tuber melanosporum    Vittad. 

common name(s) : Black Truffle, Perigord Truffle 

New classification: Ascomycota/Pezizomycotina/Pezizomycetes/Pezizomycetidae/Pezizales/Tuberaceae  
Former classification: Ascomycota/Hymenoascomycetes/Pezizomycetideae/Tuberales/Tuberaceae  

synonyms: Tuber nigrum 

edibility : edible, good

photo gallery of  Tuber melanosporum
photo gallery of  Tuber melanosporum potential confusions with  Tuber melanosporum toxicity of Tuber melanosporum genus Tuber  

The fruiting body is more or less spherical, irregular, dark: blackish brown, dark reddish brown to coal black. The outer skin is completely covered with obtuse and acute, grooved, contiguous and polygonal 3-5mm warts (often 6-faced), without stem.

The flesh is firm, white in the youth, then grey and finally purple-brown or violaceus-brown to black (with age or cut and exposed to air), and crossed by thin and very dense white veins, surrounded with translucent lines, giving it a marbled look; its taste is very pleasant, aromatic; the odour is very strong and characteristic, aromatic, invasive to the point of being almost annoying.

The fertile surface is internal.

It grows underground (at a depth ranging from 2in to one ft, which is from 5 to 20cm deep), in deciduous woods, on a rather calcareous and well drained soil, preferably with oak, also with hazel, more rarely with poplar, elm, beech, hornbeam, elm trees.
Dimensions: width of fruiting body approximately 6 cm (between 2 and 15 cm)

Distinctive features : Dark reddish brown to coal black, irregularly hemispherical fruiting body, covered with acute, polygonal and contiguous 3-5mm wide warts; very fragrant flesh, white they grey, becoming reddish brown to violet black with age or when cut, and crossed with dense white veins; found underground on calcareous soils, in deciduous woods, preferably with oak or hazel trees, in warm and dry areas.

Tuber melanosporum is still unreported so far in the forest of Rambouillet, and is rare, more generally speaking .



page updated on 14/01/18