66 
side and green below. With this are plants of the variety ovatus with 
leaves as fresh and green as they were at midsummer. 
Evonymus radicans var. vegetus. Visitors to the Evonymus Collec- 
tion should look also at the plants of this broad-leaved evergreen from 
the forests of Hokkaido. Although it is capable of climbing high up 
the trunks of trees and the sides of buildings it has been grown in 
the collection as a broad, low, round-topped shrub. Of all the forms 
of E. radicans it is the hardiest and the best for this climate; none of 
the others bloom here so freely or produce such abundant crops of 
fruit. This is white, slightly tinged with yellow and the seeds, which 
can now be seen, are bright orange color. 
Platanus orientalis. This name now appears in many American nur- 
sery catalogues, and a tree under this name has been largely planted 
in recent years in the middle and less commonly in the New England 
States. This tree, however, is not Platanus orientalis, which has leaves 
deeply divided into long pointed lobes, and is a native of southeastern 
Europe and of western and southern Asia Minor. Under favorable 
condition^ it grows to an enormous size and attains a great age. Very 
large specimens can be seen in Greece, in the neighborhood of Con- 
stantinople, in Dalmatia, and in other countries of southern Europe. 
There are a few old trees in Great Britain, some of which are believed 
to be more than two centuries old. In the Arboretum Platanus orien- 
talis is only a small bush, the branches being killed to the ground 
nearly every winter, and we have no information of the occurrence of 
any other specimen in the eastern United States. This noble tree will 
probably be hardy and grow to a large size in some parts of Califor- 
nia. The tree which is grov/n as Platanus orientalis in the eastern 
United States is Platanus acerifolia, which is easily distinguished from 
the Oriental Plane by the much less divided leaves which in shape are 
very similar to those of the native Plane tree. It is this tree which 
has been so generally planted in London that it is often called the Lon- 
don Plane. The origin of this tree is unknown. Some students believe 
it is a hybrid between the Oriental Plane and the Plane-tree of the 
eastern United States; others that it is a species from the mountains 
of Asia Minor, Afghanistan or northern Persia. No tree, however, 
like P. acerifolia is now known to grow wild in any part of that region, 
and those who support its hybrid origin point out the fact that the 
leaves resemble those of the American species and that the fruit is 
usually furnished with the terminal prickle which is found on that of 
Platanus orientalis. Whatever its origin Platanus acerifolia is a noble 
tree, and the Planes in the streets and squares of London, in spite of 
the difficulties of London conditions for trees, are probably the finest 
trees to be found in any city. Thistree has been cultivated in the United 
States for more than a century and has proved an excellent tree for 
street planting in the middle Atlantic states; it is a comparatively new 
tree to New England where it is generally satisfactory, although it 
sometimes suffers from severe cold. It is desirable that the name, 
Platanus orientalis should disappear from American nursery cata- 
logues. 
