24 
Ornus, is a common tree in southern Europe, and is now in flower at 
the upper end of the Ash Group near the top of the eastern slope of 
Bussey Hill. Manna is the hardened sap of this and a related species. 
Another species of Flowering Ash, F. Bungeana, is also in flower near 
F. Ornus. This is an old inhabitant of the Arboretum and is an irreg- 
ularly growing shrub ten or twelve feet high from the mountains near 
Peking. It flowers here regularly every year and produces large crops 
of seeds. The plant of a third species, Fraxinus Paxiana, will soon 
be in flower. This is one of Wilson’s discoveries in western China and 
is flowering this year for the first time in America. It is a small tree 
remarkable for the large size of the nearly globose terminal winter-buds. 
A new Diervilla. Among the plants brought from Korea a few years 
ago into the Arboretum by Mr. Jack is a form of Diervilla florida 
which has been named var. venusta. This is one of the handsomest of 
all Diervillas and one of the earliest to flower. It is very vigorous and 
every year completely covers itself before the leaves are half grown 
with large rosy pink flowers. Few of the shrubs introduced by the 
Arboretum in recent years give greater promise of usefulness and 
popularity in northern gardens. It is in the Shrub Collection, but the 
best plant in the Arboretum now in full bloom is on Hickory Path near 
the Pecan tree. 
Bush Honeysuckles. For northern gardens there are no more beau- 
tiful shrubs than some of the Bush Ploneysuckles, with their myriads 
of yellow, white, rose color or red flowers which in summer or autumn 
are followed by lustrous, usually scarlet fruits. Many 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, 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 Siberia 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 Amer- 
ican nurserymen as L. Morrowi are hybrids of that 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 less vigorous 
growing plants attention is called to two hybrids of L. Korolkowi in the 
collection, L. amoena and L. Arnoldiana. These have small gray- 
green foliage and small, bright pink and very attractive flowers, and are 
hardly surpassed in grace and beauty by any honeysuckles in the collection. 
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