like any of the described species. This fact led to the general study of 
American Hawthorns which has been carried on at the Arboretum dur- 
ing the last twelve years. During these years three thousand lots of 
seeds collected from wild plants in different parts of the country have 
been planted and thousands of seedlings have been raised and distribu- 
ted. A set of these seedlings has been planted on the eastern slope of 
Peter’s Hill where the oldest of them are already beginning to flower. 
On the left-hand side of the South Street entrance may also be seen 
the largest plant in the Arboretum of the Ohio Buckeye ( Aesculus gla- 
bra) now in full flower. The earliest blooming of the American Magno- 
lias, M. Fraseri, is unfolding the pale-yellow petals of its large flowers 
which open as the leaves begin to expand. This native of the forest of 
the southern Appalachian Mountains is a comparatively small tree; it does 
well at the Arboretum where it flowers freely every year. It can be 
seen in several specimens with the other American Magnolias on the 
right of the Jamaica Plain entrance and between the gate and the Ad- 
ministration Building. 
In the Shrub Collection the red-fruited Elders are in full flower and are 
handsome shrubs, especially in early summer when their brilliant fruit 
ripens. In the collection can be seen the North American Sambucus pu- 
bens, the European and Siberian S. racemosa and their varieties, and 
the Japanese S. racemosa var. Sieboldiana. This is a very vigorous 
large shrub, and although the flower and fruit clusters are smaller than 
those of the other forms of this group, the bronze color of the finely di- 
vided leaves makes it particularly attractive at this season. 
The large plant of Fothergilla major with its attractive heads of 
white flowers is now in full bloom in the Witch Hazel Group near the 
pond at the end of the Meadow Road; it is also in the Shrub Collection. 
Many of the Bush Honeysuckles are beginning to flower. One of the 
most conspicuous of the early-flowered species of this group is Lonicera 
chrysantha from eastern Siberia. A large plant of this can be seen on 
the right-hand side of the Bussey Hill Road opposite the Lilacs, and 
here, too, are several large plants of some of the hybrids of the Tartar- 
ian Honeysuckle. 
An illustrated guide to the Arboretum containing a map showing the 
position of the different groups of plants has recently been published. It 
will be found useful to persons unfamiliar with the position of the differ- 
ent groups of plants. Copies of this guide can be obtained at the Admin- 
istration Building in the Arboretum, from the Secretary of the Massa- 
chusetts Horticultural Society, 300 Massachusetts Avenue, Boston, from 
The Houghton, Mifflin Company, 4 Park Street, Boston, at the Old Cor- 
ner Bookstore, Bromfield Street, Boston, and at the office of the Harvard 
Alumni Bulletin, 50 State Street, Boston. Price, 30 cents. 
The Arboretum will be grateful for any publicity 
given these Bulletins. 
