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Thuja occidentals var. aureo-variegata, the Golden Variegated 

 or Goldspot Arbor-Vitae 



This is a variegated yellowish form of the American Arbor- 

 Vitae. 



Next by the inner road is a narrow American Arbor-Vitae and 

 then come two low darker-colored globular bushes. Their foliage 

 is quite different from the other kinds of Arbor-Vitae and one 

 might not suspect them to belong here. But they are 



Thuja occidentalis var. Spaethii, Spaeth's Arbor-Vitae 



This is. perhaps, the oddest form of Arbor-Vitae in the Garden. 

 It has two kinds of foliage, the awl-shaped juvenile type predomi- 

 nating. The adult scaly foliage generally found on the lower 

 portions of the plant is very small. It must sometimes be cut out, 

 nowe\er, for vigorous shoots of it are apt to spoil the shape of 

 the plant. This odd variety is not quite hardy in the Garden, for 

 the foliage generally dies every winter. 



The next seven trees of varying sizes are the American Arbor- 

 Vitae. The last of these is nearer the outer road and shows a cut 

 stump near the base. Just beyond it and closer to the outer road 

 is a narrow and taller Pyramidal Arbor-Vitae. 



Between the last American Arbor-Vitae with the cut stump and 

 the inner road is a 



Thuja occidentalis var. Wareana, Siberian Arbor-Vitae 



This is one of the difficultly distinguished forms. The plants 

 in the collection have been retained under this name from nurseries 

 which supplied them. Next nearer the inner road is an American 

 Arbor-Vitae. 



Close by in the center of the strip the tree with heavier foliage is 



Thuja plicata, the Giant Arbor-Vitae 



This is a very fine small specimen of one of our largest native 

 trees in the West. Under cultivation it is quite rapid-growing and 

 tolerant of shade. 



In its range from Alaska to northern California and Montana 

 the Giant Arbor-Vitae may attain a height of 150 or 200 feet. It 

 is of value commercially, principally as the chief source of shingles 

 in this country. From eisrht to twelve million shingles are annu- 



