Complimentary 
NEV/ SERIES VOL. IX NO. 16 
ARNOLD ARBORETUM 
HARVARD 
BULLETIN 
OF 
POPULAR INFORMATION 
JAMAICA PLAIN, MASS. OCTOBER 23, 1923 
Autumn Colors in the Arboretum. In spite of the dry summer and 
autumn it is doubtful if the leaves of the trees and shrubs in the 
Arboretum have ever assumed more brilliant colors than they have 
during the past two weeks; and it is doubtful, too, if there are any¬ 
where two hundred and fifty acres which can show such a variety of 
autumn colors or on which the season of such colors is so long, for in 
the Arboretum are growing the trees and shrubs of the northern hem¬ 
isphere, and the leaves of those from northeastern Asia usually change 
color sometime later than those of related North American plants. 
No pen can describe the beauty of the Arboretum in these October 
days, but in this number of the Bulletin a few of the plants which 
help to make this picture will be mentioned. 
Quercus conferta, sometimes called Q. pannonica and the Hungarian 
Oak, is unusual among Oaks in the clear canary yellow color of its 
ripening leaves. This is the handsomest of the European Oaks which 
has been tried in the Arboretum in which it has grown rapidly and 
promises to become a large and valuable tree, distinct in its large, 
thick, lustrous, deeply lobed leaves. It is a common forest tree on 
low mountain slopes and hills in southeastern Europe where it is widely 
distributed and grows sometimes to a height of a hundred feet and 
forms a trunk from three to four feet in diameter. The Hungarian 
Oak is unfortunately still a rare tree in the United States, and the 
best specimen known to the Arboretum in the country is in the Morris 
Collection at Chestnut Hill, Pennsylvania. This tree has produced 
acorns for several years and plants have been raised from them here. 
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