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simple leaves, that is leaves not divided like those of the Rowan Tree 
into numerous leaflets, which in Japan sometimes grows to the height of 
sixty feet. In the Arboretum, where this tree has been growing for 
twenty-five years, there are shapely pyramidal specimens from twenty 
to thirty feet tall. The leaves are dark green, three or four inches 
long, and nearly full grown when the flowers open; these are small and 
arranged in compact six- to twelve- flowered clusters, and are followed 
by small, scarlet and orange fruits which remain on the branches after 
the leaves fall and until eaten by birds. There is a specimen of this 
Sorbus near the Cherries on the right hand side of the Forest Hills 
Road. The species and varieties of Sorbus were first planted in a group 
in the Arboretum on the bank above the Shrub Collection near the For- 
est Hills entrance. Several of these trees, including the eastern Amer- 
ican species, are still growing here; but as this bank was too hot and 
dry, and not large enough for more than a few plants, another plan- 
tation of Sorbus has been made in the cooler ground by the Meadow 
Road. The plants grow better here but the group, like most of the 
large groups of trees in the Arboretum, requires more room for u 
proper display of all the interesting species and varieties. Mountain 
Ashes (Sorbus) suffer severely from the attack of scale insects and 
can only be kept in good condition by the annual use of the sprayer. 
Rosa omeiensis has opened its flowers this year several days before 
R. Hugonis -and R. cinnamomea which are usually the first Roses to 
flower in the Arboretum. This Chinese Rose, which is common on the 
mountains of western China, gets its name from Mt. Omei, one of the 
sacred mountains of the Empire, where it is common. It is a hardy, 
fast-growing shrub with erect stems covered with bright red prickles, 
white fragrant flowers hardly more than an inch in diameter, and bright 
red fruit on elongated fieshy, yellow stalks. On its native mountains 
it sometimes grows to the height of twenty feet. Judged by the way 
it has grown in the Arboretum, this Rose should make an excellent 
hedge for New England gardens. 
Aesculus georgiana is covered again with its compact clusters of large 
red and yellow flowers. This southern Buckeye has not been injured 
by the severe winters of 1917-18 and 1919-20, and is certainly one of 
the best new plants which have been brought into our gardens in re- 
cent years. When first discovered it was believed to be confined to the 
neighborhood of Stone Mountain in central Georgia, and to be always 
a shrub in habit, but is now known to range northward in the Pied- 
mont region to North Carolina, and often to grow into a small tree. 
The oldest plants in the Arboretum are beginning to assume a treelike 
habit, and in the parks at Rochester, New York, Aesculus georgiana 
is a shapely small tree with a straight well developed trunk. Many 
other Horsechestnuts and Buckeyes are now in flower: and the large 
group of these trees and shrubs on the right hand side of the Meadow 
Road is just now one of the most interesting and attractive in the 
Arboretum. 
