24 
climate, for there are growing here now seedlings of every known ende¬ 
mic woody plant of the central and northern part of the country. Those 
from the extreme southern part will not be able to bear the cold of 
New England winters. In addition to these recent introductions, fruits 
of Wilson’s last journey in the orient, there are growing in the Arbor¬ 
etum all the trees and shrubs which, growing in the colder parts of 
Korea, occur also in northern Japan, eastern Siberia, Mongolia and 
northern China. 
Azaleas. The flowers of two other eastern American Azaleas open 
their flowers before those of Rhododendron {Azalea) Vaseyi have faded. 
They are R. canescens and R.nudijlorum. These plants have rose-pink, 
fragrant flowers which open before or just as the leaves begin to 
unfold. The former is a northern plant common in some parts of 
southern New Hampshire and northern Massachusetts; the latter is 
more southern, ranging to Florida and Texas. Both these Azaleas take 
kindly to cultivation, and this year are covered with flowers in the 
Arboretum. They can be seen on Azalea Path, and there is a good 
mass of the northern plant on the right-hand side of the Meadow Road 
in front of the Lindens which makes itself known for a long distance 
by the exquisite fragrance of the flowers. Rhododendron ( Azalea) ja- 
ponicum is just beginning to flower. This is a hardy plant with flame- 
colored flowers three inches across. Less spectacular than the red- 
flowered R. Kaempferi, for many persons it is a more attractive plant 
and the handsomest of the Japanese Azaleas. Japanese gardeners have 
recently found forms of this Azalea with yellow flowers in different 
shades which promise to be good garden plants. 
Bush Honeysuckles. For northern gardens there are no more beau¬ 
tiful plants than some of the Bush Honeysuckles, with their myriads 
of yellow, white, rose color or red flowers which in summer or autumn 
are followed by lustrous, usually scarlet fruits. Nearly all of these 
shrubs are able to show their greatest beauty in this climate, but this 
can be obtained only by planting them in rich soil and with sufficient 
space for free growth in all directions. In poor soil and when crowded 
by other plants they are usually miserable objects. The large growing 
kinds like the different forms of L. tatarica, the hybrids L. bella and 
its varieties with white and with rose-colored flowers, and L. notha , 
should be planted as isolated specimens at least twenty feet from any 
other plant. L. Morrowi, a plant of the Amoor region in eastern Si¬ 
beria, requires even more space, for its lower branches which cling 
close to the ground naturally spread over a great area. This shrub 
has gray-green foliage, comparatively large white flowers and bright 
red fruits. It is one of the most useful of the early introductions of 
the Arboretum into the United States and has been largely planted in 
the Boston Parks. Like many other Bush Honeysuckles, L. Morrowi 
hybridizes easily with other species, and most of the plants raised from 
seeds, now sold by American nurserymen as L. Morrowi , are hybrids 
of this species with L. tatarica and are erect growing plants of little 
value for those who want plants with the peculiar habit of L. Morrowi. 
Among the less vigorous growing plants attention is called to two 
hybrids of L. Korolkowi in the collection, L. amoena and L. Arnoldi- 
ana. These have small gray-green foliage and small, bright pink and 
very attractive flowers, and are, perhaps, not surpassed in grace and 
beauty by any Honeysuckles in the collection. 
