Naturalisation in Extra-Tropical Countries. 539 



Trfgonella corniculata, Linn. 



From South-Europe to Africa and India. An annual fodder-plant, 

 cultivated also as a pot-herb by the natives of India in the cool 

 season [Roxburgh]. T. occulta (Delile) and T. Balansae (Boissier 

 and Renter) are allied species. 



Trigonella Foenum Grsecum, Linn6. 



Countries on the Mediterranean Sea, Western and Central Asia. 

 The seeds of this annual herb find their use in veterinary medicine. 

 The foliage used in some oriental countries as a culinary vegetable. 



Trigonella sauvissima, Lindley. 



Interior of Australia from the Murray-River and its tributaries 

 to the vicinity of Shark-Bay. This perennial, fragrant, clover-like 

 plant proved a good pasture-herb. It was used as a spinage during 

 Sir Thomas Mitchell's expedition. A lithogram, illustrating this 

 plant, occurs in the work on the "Plants indigenous to Victoria." 

 Some of the many European, Asiatic and African species of this 

 genus deserve local pastoral tests. 



Trillium erectum, Linn6. 



" The Birthroot." Eastern North-America. This liliaceous plant 

 has found its way into the materia medica. 



Triodia exigua, Th. Kirk. 



South-Island of New Zealand, at 1,200 to 3,000 feet elevation. 

 Forms naturally almost even plots, often many square-yards in 

 extent ; the leaves are hard, short and shining ; the compact growth 

 of the turf or sward prevents weeds and other grasses to encroach. 

 It is particularly to be recommended for croquet-lawns, never 

 requiring mowing [Prof. Th. Kirk]. Should prove especially 

 valuable in colder countries for lawns, and may hold its ground 

 also in hotter climes through some irrigation. Likely of use alsa 

 for edgings in gardens. 



Triphasia Aurantiola, Loureiro. 



South-Eastern Asia. This shrub is worth cultivation for the 

 exquisite fragrance of its flowers. The fruits, though small, are of 

 pleasant sweetness ; they should prove good for preserves. The 

 plant may also prove well adapted for hedges. Glycosmis citrifolia 

 (Lindley) and Claussena punctata (Oliver), also East-Asiatic fruit- 

 shrubs, may possibly show themselves hardy in sheltered forest- 

 regions of warm temperate climates. 



Tripsacum dactyloides, Linn. 



Central and Northern America ; known popularly as a Gama- 

 grass. A reedy -perennial grass, more ornamental than utilarian. 

 It is the original Buffalo-grass, and attains a height of seven feet,. 



