564 
EVERGREEN TREES AND SHRUBS. 
seen small plants in Parsons & Co.’s nurseries. The foliage is so 
silvery, that it is fairly brilliant. Probably 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. Cryptoineria 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- 
w’ard 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 C7'yptomeria elegans. — 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. TJmiopsis. 
Under the three botanical divisions above given, the different 
species of arbor-vitm 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-ViTas. Thuja occide7italis. 
— 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 
