4.05 
of Mustard-seeds. In colder countries these plants are 
only of one year’s duration. Numerous other species, all 
highly ornamental, occur in South America and a few also 
in Mexico. 
Trophis Americana, L- 
"West Indian Archipelagus. The foliage of this milky tree 
has been recommended as food for the silk-insect. In Cuba 
and Jamaica it is used as provender for cattle and sheep. 
Tuber aestivum, Vittad. 
The Truffle mostly in the markets of England. The white 
British Truffle, Ghairomyces meandriformis, Vitt., though 
large is valued less. In the Department Vaucluse (France) 
alone about 60,000 lbs. of Truffles are collected annually at 
a value of about £4000. Many other kinds of Truffles are 
in use. Our own native Truffle, Mylitta australis, Berk., 
attains sometimes the size of a Cocos nut, and is also a fair 
esculent. It seems also quite feasible to naturalize the best 
of edible fungi of other genera, although such may not be 
amenable to regular culture. 
Tuber eibarium, Sibthorp. 
Middle and South Europe. The Black Truffle. Like all 
others growing under ground, and generally found in forest- 
soil of limestone formations. It attains a weight over 1 lb. 
Experiments for naturalization may be effected with every 
prospect of success by conveying the Truffle in its native 
soil to us, and locating it in calcareous places ot our forest- 
regions. As condiment or merely in a roasted state it 
affords an aromatic food. T. melanosporum, Vitt., from 
France, G-ermany and Italy, is of a still more exquisite 
taste than T. eibarium, indeed of Strawberry flavor. Again 
T. magnatim, Pico, from Italy, is of delicious fragrance. 
Ullucus tuberosus, Lozano. {Melloca tuberosa, Lindl.) 
Andes of New Granada and Peru, up to an elevation of 
9000 feet. A perennial herb, the tubers of which are edible. 
Urginia Scilla, Steinheil. {Scilla maritima, L.) 
South Europe, North Africa. The medicinal Squill. The 
plant needs not regular cultivation, but settlers living near 
