504 EVERGREEN TREES AND SHRUBS. 



seen small plants in Parsons & Co.'s nurseries. The foliage is so 

 silvery, that it is fairly brilliant. Trobably not hardier than the 

 species, but considered as an evergreen shrub, to be protected 

 regularly, it commends itself to the attention of collectors. 



The Japan Cedar. Cryptomeria japonica. — This is an ex- 

 quisitely graceful tree when young, and so peculiar in the form and 

 droop of its foliage, that it is quite unfortunate it cannot be grown 

 as an open ground tree in the northern States. It is decidedly 

 tender. At Newport, and near Philadelphia, a few specimens have 

 survived the winter uninjured, but they are exceptional. South- 

 ward of Washington it is comparatively safe, Sargent recommends 

 that it be grown at the north in tubs, to be wintered in a cool, dry 

 cellar or green-house, and placed where wanted on the lawn in 

 summer, burying the tubs in the ground, so that the tree will seem 

 to belong there. In its native country it is a great tree. 



The Cryptomeria degans. — This is a very peculiar smaller 

 species, with foliage in general appearance between that of the red 

 cedar and common asparagus, dense, of a light green color, and 

 somewhat drooping. Small plants survive the winters in open 

 ground at Rochester with protection. 



THE ARBOR-VIT^ FAMILY. Thuja. Biota. Thuiopsis. 



Under the three botanical divisions above given, the different 

 species of arbor-vitae are grouped. They are all conical or pyra- 

 midal trees, or fastigiate shrubs, remarkable for the flattened ap- 

 pearance of their leaves and branchlets, which in most varieties 

 appear as if they had been pressed. 



The American ARBOR-ViTiE. Thuja occidentalis. 

 — This beautiful native tree, frequently called the 

 white cedar, is now well known everywhere in this 

 country. It grows wild in most of the eastern and 

 middle States, but in greatest abundance on the banks 

 of the Hudson, forming a conical tree, branched to the 



