Complimentary 
NEW SERIES VOL. VIII 
NO. 2 
ARNOLD ARBORETUM 
HARVARD UNIVERSITY 
BULLETIN 
OF 
POPULAR INFORMATION 
JAMAICA PLAIN. MASS. APRIL 28. 1922 
Some effects of the Winter. Although evidences of a severe winter 
are seen in dead or badly browned plants of the Red Cedar {Juniperus 
Virginiana), the native Arbor Vitae {Thuya occidentalis), and in many 
Rhododendrons in some of the Boston suburbs, evergreen plants in the 
Arboretum have suffered less than in several of the severe winters of 
recent years. The collection of conifers as a whole is in good condi- 
tion. Even such trees of doubtful hardiness as the California Picea 
Brewer ia7ia and the Japanese Abies Mariesii, two trees which have 
proved difficult to establish here, are as green and fresh as they were 
in the autumn. The Cedars of Lebanon are uninjured, although twice 
in recent winters severe cold has destroyed their leaves. Plants of the 
native White Cedar {Chamaecyparis thyoides) in low wet ground are 
injured or killed, although within twenty miles of the Arboretum there 
are hundreds of acres of undrained swamp land covered with this tree. 
It is interesting that plants of the White Cedar on a comparatively 
dry hillside in the Arboretum have never suffered from severe cold. 
The Arboretum Junipers, the Japanese Umbrella Pine {Sciadopitys), the 
different forms of the Japanese Yew {Taxus cuspidata), and the variety 
repandens of the European Taxus baccata are uninjured. Other forms 
of the European Yew have suffered in the loss of leaves or in the ends 
of branches, and only the variety repandens can be depended on in 
New England. Our native Yew (Taxus canadensis), the Ground Hem- 
lock of northern woods, is more badly browned than usual but will 
recover with the loss perhaps of a few branches. The buds of the 
Chinese Pinus sinensis and of some of its varieties do not appear in- 
jured, but these Pines will lose most or all of their old leaves. This 
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