and European collections. Q. dentata and Q. variabilis have not yet 
produced fruit in the Arboretum. Q. serrata and Q. aliena from 
Korea, and Q. mongolica from eastern Siberia and Mongolia are still 
too young to be productive. 
The general collection of eastern Asiatic Oaks is planted on the 
southern slope of Bussey Hill to the left of the southern end of Azalea 
Path. Here are plants of the Japanese form of Q. variabilis. On the 
lower side of Azalea Path there is a good specimen of Q. glandulifera 
and a specimen of Q. grosseserrata. Near the southern end of Oak 
Path there is the largest specimen of Q. variabilis in the collection. 
This tree was raised from seed sent from Peking in 1882. Near this 
tree are young plants of Q. serrata and two plants of Q. dentata. 
Several specimens of Q. glandulifera , Q. crispula and Q. grosseserrata 
can be seen in the mixed plantation along the road at the top of 
Peter’s Hill, and there is a group of these three species on the steep 
slope rising from the Parkway directly opposite the Forest Hills en- 
trance to the Arboretum. 
The Oaks of Europe do not often flourish in New England. None 
of the species of the Mediterranean region are hardy here; and al- 
though the two common Oaks of western Europe, Q. pedunculata and 
Q. sessilifora are hardy and grow rapidly in this country for a few 
years, they are short-lived here and not to be depended on. It is pos- 
sible, however, that the Hungarian Oak, Q. conferta, or as it is often 
called, Q. pannonica, may prove an exception to this general rule in 
regard to European Oaks as the climate of eastern Europe with its 
cold winters and hot dry summers is not as unlike that of eastern 
North America as the climate of western Europe. Q. conferta is a 
large and valuable timber tree with large, dark green, deeply lobed 
and lustrous leaves; it grows rapidly and is very hardy here, but it is 
too soon to speak of its permanent value or to say more than that it 
is a tree which deserves a more general trial in this country than it 
has yet received. The largest specimen in the neighborhood of Boston 
can be seen in the Arboretum on Oak Path near the Japanese Q. den- 
tata. 
The black-fruited Sambucus canadensis and its varieties are in bloom 
in the Shrub Collection and the common form is conspicuous along the 
Bussey Brook; and, although these Elders are now in full bloom, the 
brilliant red or orange fruits of the early-flowering species, S. pubens 
of North America and the Old World S. racemosa are nearly ripe. As 
a foliage plant the most beautiful of these red-fruited Elders is prob- 
ably the Japanese S. racemosa , var. Sieboldii, which is well established 
with the other Elders in the Shrub Collection. 
The brilliant fruits of some other plants are already conspicuous in 
the Arboretum, notably of some of the Bush Honeysuckles. These 
plants produce fruit in great quantities and it remains in good condition 
for several weeks, and as the different species ripen their fruit from 
early summer to the beginning of October their second period of beauty 
is a long one. On different species or hybrids the fruit is blue, black, 
orange, or scarlet, and these beautiful and abundant fruits following 
beautiful flowers make them desirable garden plants, especially in the 
northern United States where they are very hardy and where they 
appear to bloom more freely than in other parts of the world. No 
group of shrubs in the Arboretum is more worthy of the careful at- 
tention of persons who desire to plant hardy, fast-growing shrubs 
beautiful when covered in spring with innumerable flowers or in early 
summer when their showy fruits are ripe. 
