flutter gracefully, in the slightest breeze. The branches, too, are 
drooping and form a narrow open head. This tree is not known in a 
wild state, and all the plants in cultivation have been derived from a 
single individual found many years ago in a garden in Odessa. A sup- 
posed hybrid of this tree with Tilia americana ( T . vestita), often sold 
in nurseries as T. alba spectabilis, is one of the most beautiful Lin- 
dens with leaves of the size and shape of those of T. americana but 
silvery white on the lower surface. In Europe much attention is paid 
to another supposed hybrid Linden, T. euchlora or, as it is more gen- 
erally known, T. dasystyla. This is a fast-growing, pyramidal tree 
with dark green leaves, and is now largely planted as a street-tree in 
Germany and Holland. It is hardy here and promises to be a useful 
tree in New England. 
Tilia americana, which will not be in flower for several days, is a 
common northern tree, growing probably to its largest size along the 
northern borders of the United States from Nova Scotia to Minnesota, 
and easily distinguished by the green and shining lower surface of the 
large leaves which have no hairy covering with the exception of the 
conspicuous tuft3 in the axils of the principal veins. The leaves of 
this tree cultivated near Boston are often made brown, especially in 
hot dry summers, by the red spider which, however, can be controlled 
by spraying with arsenate of lead. Tilia spectabilis is believed to be 
a hybrid between this American tree and the European T. tomentosa. 
It is a vigorous, fast-growing tree, and holds its foliage in the autumn 
much later than its American parent. In some European nurseries it 
is sold under the name of Tilia Moltkei. Tilia Michauxii is a common 
tree in the northern states and is distributed from the valley of the 
St. Lawrence River to the mountains of North Carolina, and to Mis- 
souri and Arkansas. It may be readily distinguished by the thin cov- 
ering of pale brownish hairs on the lower surface of the leaves. The 
third of the Linden trees of the northern states grows from western 
New York to northern Alabama, and through Kentucky to southern 
Indiana and Illinois, reaching its largest size and greatest beauty in 
the forests which cover the high slopes of the mountains of North 
Carolina and Tennessee. The leaves of this tree are larger than those 
of the other American Lindens, oblong in shape, very oblique at the 
base and silvery white on the lower surface, and, hanging on long 
slender stalks, the slightest breeze makes them turn first one surface 
and then the other to the eye. This beautiful and perfectly hardy tree 
appears to be rarely cultivated. The Lindens, of which there is a large 
collection in the Arboretum, may be seen in the meadow on the right- 
hand side of the Meadow Road entering from the Jamaica Plain en- 
trance. 
The collection of Grapevines on the trellises at the eastern end of 
the Shrub Collection is one of the most complete and important groups 
in the Arboretum and should be visited by every one interested in 
hardy vines or in seeing the decorative value of some of our native 
Grapevines which are still little known to gardeners. All the species 
of eastern North America, with the exception of two or three from the 
extreme south, and several exotic species are well represented in the 
collection and they all have decorative value. 
In the Shrub Collection Hypericum Buckleyi, the earliest of the St. 
John’s Worts to bloom, is now covered with its small yellow flowers. 
It is a dwarf plant only a few inches high, but spreads into a broad 
mat. In the Shrub Collection, too, the two forms of Zenobia are in 
bloom, and among Andromeda-like plants hardy in this climate none 
