43 
part of New England and the middle and middle western states, that 
is in those parts of eastern North America where gardening is most prac- 
ticed. This means that Rhododendrons, Azaleas and other plants of the 
Heath Family must be excluded from the list, for plants of this family 
will not grow in soil impregnated with lime. The selection is more diffi- 
cult now than it would have been a year ago, for the past winter has 
hurt some of the shrubs which might have been included in such a 
list but which have not been able to support the excessive cold to 
be expected occasionally in the northeastern states. As they were un- 
injured by the cold of last winter the following twelve shrubs may at 
least be considered hardy whether all our readers approve or not of 
our selection. In our opinion four of the Cotoneasters of western 
China must be included in any list of the twelve best shrubs of recent 
introduction; they are C. hupehensis, C. multijlora var. calocarpa, 
C. racemijlora var. soongorica, and C. nitens. C. hupehensis is a broad, 
tall and shapely shrub with bright green leaves and white flowers 
which make the plant as conspicuous as any Spiraea. The flowers are 
followed by small scarlet fruits which are a good deal hidden by the 
leaves. C. multijlora var. calocarpa is a large shrub with slender, 
gracefully arching stems, and blue-green leaves. The flowers are borne 
in erect clusters on short lateral branchlets which rise above the arch- 
ing stems, and few shrubs are more graceful in habit or more charm- 
ing in the arrangement of their flowers; the fruit is scarlet and about 
a quarter of an inch in diameter. C. racemijlora var. soongorica is 
also a large and vigorous shrub with arching stems. The flowers are 
white and a little larger than those of C. hupehensis-, the leaves are 
dull blue-green in color, and the fruit is large and showy. Many per- 
sons consider this the handsomest of the Chinese Cotoneasters. C. nit- 
ens is also a large broad shrub; the leaves are dark green and very 
lustrous; the flowers are red, and the fruit is black. Of these four 
Cotoneasters the last has the handsomest foliage but the smallest 
flowers and fruit. 
Two Roses can properly find a place in this list of twelve shrubs, 
the Chinese Rosa Hugonis and the Korean R. Jackii. The former has 
pale yellow flowers and has often been described in these Bulletins; 
it is one of the handsomest of all single-flowering Roses and one of 
the most important introductions of recent years. Rosa Jackii bears 
clusters of white flowers like those of R. multijlora, but the flowers 
are nearly twice as large and open two or three weeks later. This is 
one of the last of the Roses to flower here and is now in bloom in the 
Shrub Collection. 
Two Lilacs recently described in these Bulletins, can be included in 
the list, Syringa Sweginzowii from northern China and S. rejlexa from 
western China. Diervilla Jlorida var. venusta, introduced a few years 
ago from Korea, is perfectly hardy and the handsomest of all the spe- 
cies, varieties and hybrids of Diervilla in the large Arboretum collec- 
tion. It can fairly be considered one of the best shrubs introduced 
into this country by the Arboretum in recent years. Prinsepia sinensis 
from northern China properly finds a place in this list. It is perfectly 
hardy; the leaves unfold earlier in the spring than those of any other 
