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See also:TRUFFLE (from Med. F r. trufle, a variant of truffe, generally taken to be for tafie, from See also:Lat. tuber, an esculent See also:root, a tuber, cf. Ital tartufo, truffle, from Lat. torae tuber; another Ital. See also:form tartufola gave Ger. Tartoffel, dissimilated to Kartoffel
, See also:potato), the name of several different See also:species of subterranean See also:fungi which are used as See also:food
.
The species sold in See also:English markets is Tuber aestivum; the commonest species of See also:French markets is T. melanosporum, and of See also:Italian the See also:garlic-scented T. magna-turn
.
Of the three, the English species is the least desirable, and the French is possibly the best
.
The See also:truffle used for See also:Perigord See also:pie (pate de foie gras) is T. melanosporum, regarded by some as a dark variety of our See also:British species, T. brumale
.
When, however the stock of T. melanosporum happens to be deficient, some manufacturers use inferior species, such as the worthless or dangerous Choeromyces meandriformis
.
Even the See also:rank and offensive Scleroderma vulgare (one of the puff-See also:ball See also:series of fungi) is sometimes used for stuffing turkeys, sausages, &c
.
Indeed, See also:good truffles, and then only T. aestivum, are seldom seen in English markets
.
The See also:taste of T. melanosporum can be detected in Perigord pie of good quality
.
True and false truffles can easily be distinguished under the See also:microscope
.
Tuber aestivum, the English truffle, is roundish in shape, covered with coarse polygonal warts, See also:black in See also:colour outside and brownish and veined with See also:
The odour of T. aestivum is very strong and penetrating; it is generally esteemed powerfully fragrant, and its taste is considered agreeable
.
The See also:common French truffle, T. melanosporum, is a winter species
.
It is a valuable See also:article of See also:commerce and is exported from France in See also:great quantities
.
The tubers are globose, See also:bright See also:
It is black in colour, globose, more or less See also:regular in shape, and is covered with See also:sharp polygonal warts; the mature flesh is blackish grey marbled with white veins
.
The odour is very strong and lasts a See also:long See also:time; the taste is generally esteemed agreeable
.
Choeromyces meandriformis, which occurs in Britain, is sometimes sold for T. magnaturn, the colour of the flesh of both species being somewhat similar
.
Scleroderma vulgare, the " false truffle," is extremely common on the See also:surface of the ground in woods, and is gathered by Italians and Frenchmen in See also:Epping See also:Forest for the inferior dining-rooms of See also:London where See also:continental dishes are served
.
It is a worthless, offensive, and possibly dangerous fungus
.
A true summer truffle, T. mesentericum, found in oak and birch woods on calcareous See also:clay soil, is frequently eaten on the See also:Continent
.
It is esteemed equal
to T. aestivum, of which it is regarded as a variety and probably grows in Britain
.
Another edible species, T. macrosporum, also grows in Britain, in clayey places under young beeches and oaks, on the See also:borders of streams and roads, and sometimes in fields ; more rarely it grows in plantations of See also:willow and See also:poplar
.
It has a strong See also:scent of onions or garlic somewhat similar to T. aestivum, but it is less esteemed on See also:account of its toughness and its small size
.
Terfezia leonis, a famous truffle of Italy, See also:Algeria, See also:Sardinia, &c., resembles externally a potato
.
It grows in See also: It is not scented, and its taste is generally considered insipid or soapy . Melanogaster variegatus, an ally of the puff-balls, and therefore (like Scleroderma) not a true truffle, is sometimes eaten in See also:England and France . It has been, and possibly still is, occasionally sold in England under the name of " red truffle." It is a small ochreous-brown species with a strong aromatic and pleasant odour of See also:bitter almonds . When the plant is eaten raw the taste is sweet and sugary, but when cooked it is hardly agreeable . The odour belonging to many truffles is so potent that their places of growth can be readily detected by the odour exhaled from the ground . Squirrels, hogs and other animals commonly dig up truffles and devour them, and pigs and See also:dogs have long been trained to point out the places where they grow . Pigs will always eat truffles, and dogs will do so occasionally; it is therefore usual to give the trained See also:pig or See also:dog a small piece of cheese or some little See also:reward each time it is successful . Truffles are reproduced by spores, which serve the same purpose as seeds in flowering See also:plants; in true truffles the spores are See also:borne in transparent sacs (See also:asci), from four to eight spores in each See also:ascus . The asci are embedded in vast See also:numbers in the flesh of the truffle . 5, T. magnatum . 6, Choeromyces meandriformis . 7, Scleroderma vulgare . 8, Melanogaster variegatus . In false truffles the spores are See also:free and are borne on See also:minute spicules or supports . The spores of the See also:chief See also:European truffles, true and false, enlarged five See also:hundred diameters, are shown in the accompanying See also:illustration . Many references to truffles occur in classical authors . The truffle Elaphomyces variegatus was till quite See also:recent times used, under the name of See also:Hart's See also:nut or Lycoperdon nut, on account of its supposed aphrodisiac qualities . |
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