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a short trunk covered with rough bark, wide-spreading branches fur- 
nished with corky wings, and dark green leaves lustrous and nearly 
smooth on the upper surface and slightly downy below. As this tree 
produces many suckers it can be easily multiplied. 
Ulmus laevis. This is a comm.on Elm in northern Russia and in some 
parts of Scandanavia, and occurs occasionally in Denmark and the 
Balkan countries. It has been growing in the Arboretum since 1888, 
and is now fifty-five feet tall with a short trunk, a broad pyramidal head 
and dark green foliage. Botanically this Elm is closely related to the 
American White Elm (Ulmus americana) but differs from it in the 
thicker coat of down on the lower surface of the leaves and in its 
larger and sharper-pointed buds. The leaves of this tree unfold 
here earlier than those of any other Elm. It is probably extremely 
rare in the United States, but American tree lovers can wisely learn 
more about it. 
The Arboretum Collection now contains sixty-two different Elms and 
includes all the known species with the exception of the four Hima- 
layan Elms and the Mexican Elm which are not in cultivation and two 
species from the southern United States which are not hardy here. 
With few exceptions the important and interesting varieties and hybrids 
are represented in the collection. Many of the plants are still too 
small to produce fruit or to show the habit of mature trees, but as 
a whole the collection offers a good opportunity for the study of the 
leaves and branchlets of Elm-trees. 
A good Rhododendron. To a Rhododendron which is growing in Mr. 
Hunnewell’s garden at Wellesley the name of Glennyi has been given. 
This name is probably not correct, at least it is not found in the cat- 
alogues of garden Rhododendrons. There was once, however, in Eng- 
land a Mr. Glenny who raised hybrid Rhododendrons, for on the 5th 
of February, 1838, at a meeting of the Royal Horticultural Society in 
London, “Mr. George Glenny exhibited a Rhododendron said to have 
been raised by himself from seed. It did not appear different from a 
variety raised some years since by Mr. Waterer, of Knaphill, and called 
in the gardens R. jndcherrimum. It is said to have been a hybrid 
between R. arboreum and R. caucasicurn, and was raised at Knaphill 
in 1832; it has pink flowers.” The plant in Mr. Hunnewell’s garden 
is evidently a hybrid of R. caucasicurn, and has been growing there 
for fully fifty years. The original specimens were certainly imported 
from England and are now round-topped bushes about six feet high. 
For at least thirty years they have never suffered from heat or cold 
and have never failed to bloom freely. The leaves show the influence 
of R. catawbiense but the size of the flower-clusters and the size of 
the white flowers, which are a good deal like those of R. Boule de 
Neige, point to R. caucasicurn. The early flowers, for this is one of 
the earliest of the hardy Rhododendrons to flower in this climate, show 
too the caucasicurn influence. But whatever name it should bear and 
whatever its parentage this Rhododendron is a valuable plant, for it 
is certainly one of the hardiest hybrid Rhododendrons which have been 
planted in this country. There are only small plants in the Arboretum 
Collection where it has not yet flowered. 
