USES. 101 
green beech trees in South America, has been named Cyttaria. 
One of these, Cyttaria Darwinii, B., occurs in Terra del Fuego, 
where it was found by Mr. C. Darwin* growing in vast numbers, 
and forming a very essential article of food for the natives. 
Another is Cytlaria Berteroi, B., also seen by Mr. Darwin in 
Chili, and eaten occasionally, but apparently not so good as 
the preceding. Another species is Oyttaria Gunnii, B., which 
abounds in Tasmania, and is held in repute amongst the settlers 
for its esculent properties.t 
Fic. 44.—Cyttaria Gunnii, B. 
It remains for us only to note the subterranean fungi, of which 
the truffle is the type, to complete our enumeration of esculent 
species. The truffle which is consumed in England is Zuber 
estivum, Vitt.; but in France the more highly-flavoured Tuber 
melanospermum, Vitt.,§ and also Zuber magnatum, Pico, with 
some other species. In Italy they are very common, whilst 
some are found in Algeria. One species at least is recorded in 
the North-west of India, but in Northern Europe and North 
America they appear to be rare, and Terfezia Leonis is used as 
anesculent in Damascus. A large species of Afylitta, sometimes 
several inches in diameter, occurs plentifully in some parts of 
Australia. Although often included with fungi, the curious 
production known under the name of Pachyma cocos, Fr., is not 
* Berkeley, in ‘* Linn. Trans.” xix. p. 37; Cooke, in ‘‘ Technologist” (1864), 
p. 387. 
+ Berkeley, M. J., in ‘‘ Linn. Trans.” xix. p. 37. 
t Berkeley, M. J., in ‘‘ Hooker, Flora Antarctica,” p. 147; in ‘‘ Hooker's 
Journ. Bot.” (1848), 576, t. 20, 21. 
§ Vittadini, C., ‘‘Monographia Tuberacearum (1831), pp. 36, &c. 
