European gardens and probably hybrids of American species, for none 
of these plants have yet been found growing wild and their parentage 
is not clear, but whatever their origin may have been they are attract- 
ive and useful garden plants. 
The Arboretum owes much of its early summer beauty to the Vibur- 
nums, and none of these plants are more conspicuous just now than the 
native Nannybery, Viburnum Lentago, which has been largely used here. 
This large shrub, or small tree, with its large lustrous leaves and broad 
convex clusters of white flowers tinged with yellow, and its drooping 
clusters of black fruit, is one of the handsomest of the whole genus, 
and if it grew on the borders of Tibet instead of along New England 
roadsides it would be better known and more highly considered in 
New England gardens than it is at present. 
The three species of the Opulus Viburnums are now in flower on the 
right-hand side of the Bussey Hill Road and in the Viburnum Collection, 
and their comparative value as flowering plants can be seen. The Eu- 
ropean Viburnum Opulus has smaller flower-clusters than the others, 
but it is a larger plant and holds its leaves later in the autumn with- 
out change of color; the beauty of the bright red fruits is thus height- 
ened by contrast with the leaves. The American species, Viburnum 
americanum , is a plant of more open habit. The leaves turn orange 
color in the autumn and fall early, leaving the orange-red fruits on the. 
naked branches. The Asiatic speeies, V. Sargentii, has the handsomest 
flowers of the three species as the neutral ray-flowers are much larger 
than those of the other species. The habit of this plant is good, but 
the fruit is small and inconspicuous. There are forms of the European 
Viburnum Opulus with yellow fruit (var. xanthocarpum), and there is 
a dwarf very compact form which rarely flowers; the Snowball of old- 
fashioned gardens is a form of the European plant in which all the 
flowers are sterile. 
Rosa Hugonis has been in flower in the Shrub Collection for the first 
time in the Arboretum. It is a native of western China, with clear 
yellow single flowers and neat pale foliage. There are not many yel- 
low-flowered Roses hardy in New England, and R. Hugonis promises 
to be a valuable addition to the number. 
Other plants now in flower or soon to flower of special interest are 
Berber is Poiretii and B. sinensis , Rosa spinosissima altaica and R. 
spinosissima fulgens, Potentilla fruticosa ochroleuca and P. Vietchii, 
Lonicera Maacki and its variety podocarpa and several Diervillas, all 
in the Shrub Collection. Worthy of notice, too, are several of the new 
Chinese Cotoneasters, to be seen in the Bussey Hill collection of Cain- 
ese plants and in the Shrub Collection. 
In the Lilac Group the Korean Syringa velutina is flowering for the 
first time in the Arboretum. The small rose pink flowers of this shrub 
are borne in long, narrow, irregular clusters at the ends of the slender 
arching branches. 
The Arboretum will be grateful for any publicity 
given these Bulletins. 
