Lilac Group. There is here also a large plant of Lonicera bella, with 
pale yellow flowers, the result of a cross between L. tatarica and 
L. Morrowii ; and here, too, are plants of L. chrysantha from north- 
eastern Asia now in full bloom, and of L. orientalis from southeastern 
Europe which will not open its flowers for several days. 
Other interesting Bush Honeysuckles now to be seen in the Shrub 
Collection are Lonicera xylosteoides, with white flowers, a hybrid be- 
tween the Tartarian Honeysuckle and L. Xylosteum, L. muendeniensis , 
with pale yellow flowers, a hybrid of the Tartarian Honeysuckle with 
L. Morrowii from northeastern Asia, L. muscaviensis with pale yellow 
flowers, a hybrid between L. Morrowii and L. Ruprechtiana , L. seg- 
reziensis with white flowers, a hybrid between L. quinquelocularis and 
L. Xylosteum , L. multijlora with white flowers, a hybrid between 
L. micrantha and L. Morrowii , and two beautiful plants with pale 
bluish foliage and small rose-colored flowers, L. Korolkowii fioribunda , 
and a hybrid of L. Korolkowii with L. tatarica which appeared in the 
Arboretum a few years ago and known as L. amoena Arnoldiana. 
These are only a very few of the plants now in bloom in this collec- 
tion, which is one of the most important in the Arboretum. 
An examination of the plants of the wild Lilac, Syringa vulgaris , is 
interesting as showing the great improvements which have been made 
in garden Lilacs since the introduction of this plant into western 
Europe. The original Lilac, S. vulgaris, was found only a few years 
ago to be a native of the mountains of Bulgaria, and there is now a 
group of these plants raised from seeds collected from the wild plants 
in Bulgaria now flowering at the foot of the bank on the left-hand 
side of the path which passes up through the Lilac Group. These 
plants are labeled “Syringa vulgaris, mountains of Bulgaria.” 
The two northern pink-flowered species of Azalea, or Wild Honey- 
suckle, as these plants are often called, Rhododendron canescens and 
R. nudijlorum, are now in flower. The former is a northern and the 
latter a more southern plant, and is especially common in the Gulf 
States from Florida to eastern Texas. The flowers of these plants open 
before or with the unfolding leaves and in early spring fill the woods 
with their fragrance. Both species can now be seen on Azalea Path, 
and there is a good mass of Azalea canescens on the right hand side of 
the Meadow Road in front of the Linden Group. 
The flowers of the Highbush Blueberry, Vaccinium corymbosum , have 
never been more abundant or lasted longer in good condition in the 
Arboretum than this year, and it is desirable to call attention again 
to this wonderful plant which is beautiful in its flowers, its abundant 
edible fruits, and the splendid scarlet of its autumn leaves. The High- 
bush Blueberry, which grows naturally along the borders of swamps 
and other low places, where it occasionally reaches a height of from 
twelve to eighteen feet, is easily cultivated in good garden soil. On the 
plants in the Arboretum, where they have been largely planted, the 
flowers differ in size and in the time of opening. The individuals vary, 
too, in the size and quality of their fruit, but all the forms seem equally 
valuable as garden plants. For its fruit, which is the best of all Blue- 
berry fruit, and for the beauty of its flowers and autumn leaves, this 
shrub cannot be too often planted. There are several plants on each 
side of Azalea Path near its entrance from the Bussey Hill Road; and 
the Highbush Blueberry can also now be seen in many of the Roadside 
plantations, especially in the piece of swampy ground on the right-hand 
side of the Meadow Road in the rear of the Horsechestnut Group. 
Aronia, a genus of the Rose Family, confined to eastern North Amer- 
ica, sometimes considered a section of the genus Pyrus, contains val- 
