TICK OF ECONOMIC PLANTS. 411 



Thorn, a general term for spiny plants, chiefly applied to 

 the different species of Cratmjus, as the Hedge Thorn {C. 

 Oxyacantha), and the Cockspur Thorn {C. Cms (jalli). 



Thorn Apple. {Sec Datura.) 



Thrift, a common name for Statice Armeria or Armcria 

 viUgaris, and minor tufty grass-leaved herbs of llie Lead^^•ort 

 family (Plumbaginacete), common on hanks and rocky places on 

 sea-coasts of this country. They are known in gardens as Greater 

 and Lesser Thrift, also by the names of Sea Gilliflowers and 

 Sea Thrift. They are suitable for forming edges for Avalks and 

 borders, for which they are in some gardens used instead of box. 



Thus, or Frankincense, a resin from Alies excelsa. 



Thyme [Tliymus vidgaris), a small-leaved, compact, evergreen 

 shrub, not exceeding 1 to 2 feet in height, of the ]\Iint family 

 (Labiata3), native of Southern Europe, introduced into this country 

 more than 300 years ago, and a favourite for its aromatic scent : 

 also used as a flavouring agent for culinary purposes. In France 

 an oil is extracted from it, known as Oil of Thyme, but fur which 

 marjoram oil is often substituted. 



Thyme, Oat {Teucrium Marum and T. Folium), small, neat 

 shrubs, also of the family Labiata?, not exceeding a foot in 

 height, with small leaves, natives of the ishands and coasts of 

 the Mediterranean. The first is used medicinally, and excites 

 sneezing. Cats are fond of rolling on it. 



Thymol. (See Ajowan.) 



Ti, a name in ISTew Zealand for Dracama tcrmincdis, a tree of 

 the Lily family (Liliaceas), common in the Sandwich Islands 

 and in the islands of the Pacific generally. It has thick flesliy 

 roots which contain saccharine matter, from which the natives 

 extract sugar. They also bake and eat the roots, and a spirituous 

 liquor is obtained from them by distillation. 



Tibisiri, the Indian name for the Miriti Palm (which see). 



Tick Seed, a name in the United States for Dcsmodium 

 acuminaticm and D. nudiflorum, perennial trifoliate-leaved lierbs 

 of the Bean family (Leguminosoj), common in the Soutliern 

 United States. Used as fodder plants, and to increase the secrc- 



