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foliage. These forms are usually known as Biota and some of 

 them, especially the dwarf ones, are among the favorites of 

 nursery practice. 



The Chinese Arbor-Vitae is native to northern and western 

 China, where it does not attain heights much over 40 feet. 



Just beyond this tree and the outer road is another low bushy 

 American Globe Arbor-Vitae. Directly beyond it are two more 

 Chinese Arbor-Vitae with their characteristic perpendicular habit. 



The four trees along the inner road which we have passed are 



Thuja orientalis var. aurea, the Golden Chinese Arbor-Vitae 



Here is another form where confusion of names may exist. 

 These trees in spring have bright yellowish foliage. 



The next taller and very narrow evergreen by the outer road is 

 Thuja occidentalis var. pyramidalis, the American Pyramidal 



Arbor-Vitae 



This is merely a narrower form of the common native Arbor- 

 Vitae, which we shall soon see. 



The four larger broad trees that face us now are 



Thuja Standishii, Japanese Arbor-Vitae 



This is one of the most successful and best-looking of the 

 several kinds of Arbor-Vitae in the Garden. Its heavy foliage is 

 the most open of the species of Thuja and readily distinguishes 

 it from the Chinese and the American species. It very much 

 resembles, however, the native Western or Giant Arbor-Vitae. 

 The difference will be pointed out when we see the latter. 



The Japanese Arbor-Vitae, once common, is now one of the 

 rarest of useful ornamental trees in Japan. In feudal times it 

 constituted with four other conifers the famous five trees of Kiso 

 which were strictly preserved as Tamc-Ki (the preserved tree). 

 The other four were the Umbrella Pine, Sawara Cypress, Hinoki 

 Cypress and False or Hiba Arbor-Vitae. These are all in the 

 Garden, the last in the greenhouse. In Japan this Arbor-Vitae 

 may attain a height of 75 feet. Its wood is used to some extent. 



Between the last one of these four specimens of Japanese 

 Arbor-Vitae and the outer road stands a narrower 



Thuja occidentalis, the American Arbor-Vitae 



