Complimentary 
NEW SERIES VOL. IV 
NO. 3 
ARNOLD ARBORETUM 
HARVARD UNIVERSITY 
BULLETIN 
OF 
POPULAR INFORMATION 
JAMAICA PLAIN, MASS. MAY 11, 1918 
Effects of the severe winter. Injuries to plants with deciduous 
leaves have fortunately been less serious than to broad-leaved Ever- 
greens. All Azaleas are unhurt in branch and bud, with the exception 
of some of the flower-buds of Rhododendron {Azalea) Kaempheri, and 
promise to bloom exceptionally well. The ability of some of the hand- 
somest of the eastern North America and the eastern Asiatic Azaleas 
to bear uninjured the cold of a winter like the last teaches an impor- 
tant lesson; and it is well to repeat what has been so often said in 
these Bulletins, that in these Azalea species, but not in their hybrids 
which are usually short-lived and not always hardy, are found some of 
the most beautiful of the shrubs which can be grown in this part of 
the country, and that for the eastern United States they are more 
satisfactory than any evergreen Rhododendrons. All the new Chinese 
Cotoneasters have come through the winter without injury with the 
exception of the variety elegans of C. Dielsiana, the varieties rugosa 
and Jioccosa of C. salicifolia some plants of C. horizontalis and its vari- 
ety perpusilla which have lost the ends of the branches. The fact that 
most of these Cotoneasters have been able to support without injury 
the cold of last winter is important, for among them are some of the 
most beautiful of the Chinese shrubs of recent introduction. The 
Chinese Poplars are uninjured with the exception of P. lasiocarpa, 
which has never done well in the Arboretum, and P. yunnanensis, which 
has lost a good many branches. This tree has suffered here before and 
will probably not live long in eastern Massachusetts, although it has 
grown well in the neighborhood of New York. The Chinese Butternut 
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