24 
Aesculus georgiana. This shrub, which is a native of central Geor- 
gia, is covered again with its compact clusters of yellow and rose-col- 
ored flowers. Perfectly able apparently to support the New England 
climate, this Buckeye is one of the handsomest and most interesting 
southern shrubs which the Arboretum has made known and introduced 
into gardens. 
Aesculus Briotii. This French form of the so-called red-flowered 
hybrid Horsechestnut {Aesculvs carnea) is in flower in the Collection. 
It is the most brilliantly colored of all the forms of Aesculus carnea, 
and few trees hardy in this climate bear such showy flowers. It begins 
to flower when not more than ten feet high; it is perfectly hardy, and 
it should be seen more generally in American gardens. 
Daphnes. Three white-flowered Daphnes are now in flower on Azalea 
Path, D. alpina from the mountains of central Europe, £>. caucasica 
from the Caucacus, and D. altaica from the mountains of southern 
Siberia., They are small, erect-growing shrubs with narrow leaves. 
D. alpina may be distinguished from the others by the downy covering 
on the lower surface of the young leaves and on the young branchlets. 
The others are perhaps only geographical forms of one species, but the 
flowers of D. altaica are very fragrant, and those of D. caucasica have 
a disagreeable odor, 
American Magnolias. Several of these plants can now be seen in 
flower in the Magnolia Group on the right-hand side of the Jamaica 
Plain entrance; those already in flower are M. Fraseri, M. cordata, 
M. acuminata and M. tripetala. M. macrophylla, M. glauca and the 
hybrid M. Thompsoniana will not open their flower-buds until later. 
Diervilla florida, var. venusta. The specimen of this Korean plant 
on Hickory Path, near Centre Street, is now covered with large deep 
rose colored flowers and is one of the most strikingly beautiful objects 
in the Arboretum. As a flowering plant it is doubtful if any other 
species or any of the numerous hybrids in this genus equals this in 
beauty. 
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 Arboretum. Copies 
of this guide can be obtained at the Administration Building in the 
Arboretum, from the Secretary of the Massachusetts Horticultural 
Society, 300 Massachusetts Avenue, Boston, from The Houghton, 
Mifflin Company, 4 Park Street, Boston, and at the oflBce of the Harvard 
Alumni Bulletin, 50 State Street, Boston. Price, 30 cents. 
The subscription to these Bulletins is $1.00 per year, payable in 
advance. 
