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century. It is a large shrub with arching branches, and large, soli- 
tary, pure white, cup-shaped, scentless flowers. This beautiful plant 
is not now very often seen in gardens. It is impossible in this bulle- 
tin even to mention all the species, varieties and hybrids of Philadel- 
phus in the collection which is now one of the most complete in the 
Arboretum. It will well repay a careful study by persons interested 
in handsome garden shrubs and in the effects of hybridization, natural 
or intended, in this genus. 
A new Chinese Rose. From the seeds of a Rose collected by Wilson 
in western China a new species of the Moschata Group has been raised. 
It is now flowering in the Arboretum for the third year and is to be 
named Rosa Helenae; it is a vigorous and perfectly hardy shrub with 
slender, arching stems furnished sparingly with short red spines, and 
five or six feet high, light green cheerful foliage, and terminal and 
axillary many-flowered clusters of pure white, delicately fragrant flow- 
ers an inch and a half in diameter and borne on short erect branch- 
lets. It is a plant which will be prized by persons realizing that 
among the wild Roses are some of the most beautiful of all flowering 
plants and who find a place for them in their gardens. 
Magnolia macrophylla. This is the last of the Magnolias in the 
collection to flower. It is a medium-sized tree with wide-spreading 
branches, and is distinguished by the fact that of all trees which grow 
beyond the tropics it has the largest leaves and the largest flowers. 
The leaves are silvery white on the lower surface, from twenty to 
thirty inches long and from eight to nine inches wide, and the cup- 
shaped, creamy-white, fragrant flowers are often a foot in diameter. 
An inhabitant of the south where it is widely distributed from North 
Carolina to western Louisiana, this Magnolia is perfectly hardy in New 
England, but unless it is planted in sheltered positions the trees often 
become disfigured by the wind which tears the large delicate leaves. 
Magnolia glauca. Less showy than Magnolia macrophylla, this is a 
more valuable plant for general cultivation. Often a large tree in the 
south, at the north Magnolia glauca is never more than a small tree, 
or more often a large shrub. The leaves are dark green and very lus- 
trous on the upper surface and silvery white on the lower surface; 
the flowers are small, cup-shaped, creamy white and delightfully fra- 
grant, and continue to open in succession from the middle of June 
until August. In all North America there is not a more delightful 
shrub to plant in the garden, or one that will give larger returns in 
beauty and fragrance; yet it is difficult to find it in any quantity in 
American nurseries, and it is unknown to most American planters of 
this generation. A hybrid, M. major, often called M. Thompsoniana, 
between M. glauca and M. tripetala, another American species, has 
the general appearance of M. glauca but has larger leaves and larger 
fragrant flowers. It is with the American Magnolias on the right-hand 
side of the Jamaica Plain Gate and is now in flower. 
Hydrangea petiolaris. The so-called Climbing Hydrangea was intro- 
duced into the United States from Japan in 1876 by the Arboretum 
and is now often seen in Massachusetts gardens. It is usually allowed 
to climb up the trunks of trees, and it is perhaps not well known that 
this Hydrangea is an excellent plant for covering brick and stone walls. 
