56 
sometimes grows one hundred feet high or more, with a massive trunk 
and ascending or spreading branches; it suckers freely and also pro- 
duces, at least in England, large crops of seeds. The Huntington Elm 
can be seen to great advantage in Cambridgeshire, England, where it 
has been largely planted, especially in Cambridge itself where there is 
a noble avenue of these trees. In New England it grows perhaps mere 
rapidly than any other Elm-tree, and it is one of the best Elms to 
plant here. 
Ulmus hollandica, var. belgica. This is another hybrid probably of 
the same parentage. It is a tree with a tall rough-barked stem and 
wide-spreading branches which form a broad head covered with dense 
foliage. It was cultivated in Flanders in the eighteenth century and 
for many years has been the principal Elm-tree planted by roadsides 
and in parks in Belgium and Holland. It is said that in Belgium it 
grows more rapidly than any other Elm-tree, and that it succeeds bet- 
ter on poor sandy soil than any other Elm. As it grows in the streets 
of the Dutch cities there is certainly no better street tree, but it is 
still too soon to speak of its value or of its rapidity of growth in this 
country, although the plants in the Arboretum are flourishing. This 
Elm is often sold in European nurseries as Ulmus hollandica. There 
is a variety of this tree (var. Dumontii), with more ascending branches 
which form a narrow head. This has been planted as a street tree in 
Europe but is believed to grow more slowly than the common form of 
the Belgian Elm. 
Ulmus hollandica, var. Klemmer is another supposed hybrid of the 
same parentage, and in habit is more fastigiate than the Belgian Elm. 
This has also been a favorite tree with Belgian and Dutch planters. 
Ulmus hollandica, var. superba. This is probably another hybrid of 
the same parentage and is described by European dendrologists as a 
narrow pyramidal tree; it is therefore different from the tree in the 
Ellwanger & Barry Nursery at Rochester, New York, called Ulmus 
superba, which is probably only a varietal form of Ulmus glabra or 
another hybrid of that species. 
Ulmus hollandica, var. major. This is also probably an English 
hybrid of the same parentage; it is a large dark-barked tree with wide- 
spreading branches and corky branchlets, and suckers freely. This 
tree is common in England, and it is the Elm with winged branches 
which is sometimes found in American collections under the name of 
Ulmus campestris. It is often called Ulmus hollandica and is sold in 
European nurseries under that name. 
During the next month several interesting plants will flower in the 
Arboretum. Among trees may be mentioned the Chinese Koelreuteria 
paniculata, the American and Asiatic forms of Aralia spinosa, the 
Japanese Acanthopanax ricinifolium and Sophora japonica; and among 
shrubs the Pepper-bush of the eastern United States ( Clethra alnifolia), 
which has been largely used in the roadside plantations, and Panax 
sessiliflorus from eastern Siberia which is in the Aralia Group near 
the junction of the Meadow and Bussey Hill Roads. 
These bulletins will now be discontinued until autumn. 
