Naturalisation in Extra-Tropical Countries. 523 



Tamarix Germanica, Linne. 



Europe and Western Asia, extending to about 15,000 feet into the 

 Himalayas ; hardy in Norway to lat. 70 20' [Schuebeler]. Likewise 

 available for arresting the ingress of shifting sand, particularly in 

 moist places, also for solidifying precipitous river-banks. The allied 

 T. elegans (Myricaria elegans, Royle) attains a height of 20 feet. 



Tamarix orientalis, Forskael. (T. articulata, Vahl.) 



Northern and Middle Africa, Southern Asia. A fast-growing 

 tree, attaining a height of 60 feet, the trunk occasionally enlarging 

 to a circumference of 12 feet. Springs up readily from seeds, and 

 is also easily propagated from cuttings. Coppices well. The wood 

 serves for ploughs, wheels, and many implements [Stewart and 

 Brandis]. With T. Gallica it grows with sufficient rapidity, to be 

 reared in India for fuel. Dye-galls and a kind of manna are also 

 produced by this tree. The same or an allied species extends to 

 Japan. 



Tamarix tetragyna, Ehrenberg. 



From Egypt to Afghanistan. This is prominently fit for saline 

 soil, so much so as to be turned to use for Barilla. Most kinds of 

 pasture-animals like to browse on these sorts of plants, but should 

 not have them as exclusive feed [Aitchison]. 



Tanacetum VUlgare, Linn6. (Pyrethrum vulgare, Boissier.) 



The Tansy. Northern and Middle Europe, Northern Asia, North- 

 Western America. A perennial herb Of well-known medicinal value, 

 which mainly depends on its volatile oil. One of over a hundred 

 kinds of plants, ordered to be grown in the gardens of Charles the 

 Great already. 



Taraxacum officinale, Weber. 



" Dandelion." In most of the temperate and cold parts of the 

 globe, but apparently not a native of Australia. It lives in Norway 

 northward to lat 71 10' [Schuebeler]. This well-known plant is 

 mentioned, as it can be brought under regular cultivation, to obtain 

 the medicinal extract from its roots. It is also easily naturalised. 

 It is considered wholesome to grazing animals. The young leaves 

 furnish a medicinal salad. It is also an important honey-plant and 

 flowers early in the season. 



Tarchonanthus camphoratus, Linne". 



South-Africa. This bush deserves attention, being of medicinal 

 value. As an odorous garden-plant it is also very acceptable. 



