much planted in the suburbs of London. There is another Elm in Europe 
which is perhaps a hybrid but its parentage is uncertain, and it appears 
to be without an authentic name. This is the Elm which is planted in all 
the Dutch cities and, judging by its appearance in these cities, one it is 
of the best of all street trees. There are large trees in Holland, in the 
Champs Elysees in Paris, and at Versailles, so if it is a hybrid it is not 
of recent date. 
When in Massachusetts we speak of Ulmus campestris we do not 
refer to any of the trees already mentioned in this bulletin but to the 
so-called Elm of the roadsides, avenues and hedge-rows in southern 
England. The origin of this tree is obscure. Growing spontaneously 
it is known only in England; it never ripens seeds, and it increases by 
suckers which are produced in profusion. Some authors have thought 
that it might be a hybrid; by others it has been suggested that it was 
brought from Italy to Britain by the Romans. It is a splendid tall long- 
lived tree with a massive trunk and erect or spreading branches. This is 
a tree which has grown to a larger size in Boston and its suburbs than 
any other planted tree. Major Paddock established a nursery of these 
trees at Milton in the eighteenth century and the Paddock Elms, once the 
glory of Tremont Street, and the so-called English Elm trees which once 
stood on Boston Common are of this form. The oldest name for this 
tree is Ulmus surculosa. All these Elms, and many other species, hy- 
brids and varieties in small individuals can be seen on the northeastern 
slope of Bussey Hill. Ulmus surculosa is common near Boston. Ulmus 
glabra and some of its varieties are not uncommon in this neighborhood, 
and occasionally plants of Ulmus nitens and Ulmus foliacea can be found 
in eastern Massachusetts. As these last are usually raised from seeds in 
European nurseries the imported seedling plants show great variation in 
habit, foliage and in the presence and absence of wings on the branchlets. 
Two of the trees of eastern Asia are now in bloom. Koelreuteria pan- 
iculata is a native of northern Japan and is often planted in the gardens 
of Peking. It is a medium-sized tree with compound leaves and large 
erect clusters of bright yellow flowers. This is a valuable tree for it is 
very hardy, the foliage is handsome and the flower-clusters appear after 
the flowers of nearly all trees have passed. It is to be seen on the right- 
hand side of the Meadow Road between the Evonymous Group and the 
Horsechestnuts. 
The second of the Asiatic trees in flower, Maackia amurensis, belongs 
to the Pea Family and is a native of eastern Asia. It is a small tree with 
orange-brown bark, dull green compound leaves, and short erect clusters 
of small yellowish white flowers. Botanically it is a nearer relative of the 
North American Yellow-wood or Virgilia, Cladrastis lutea. It has some- 
times been supposed to belong to the genus Cladrastris, from which it dif- 
fers, however, in the winter-buds, in the inflorescence and in the bark 
and wood. As an ornamental tree it is in every way inferior to its Amer- 
ican relative, and it is only of botanical interest. Two trees of Maackia 
can be seen on the right-hand side of Bussey Hill Road at the top of the 
Heath Family Group. 
The Arboretum will be grateful for any publicity 
given these Bulletins. 
