56 
here several times. This is the only form of Vitis vinifera which it has 
been possible to grow here, and it would seem to be a good subject for 
plant breeders anxious to produce better grapes for northern markets. 
Chinese Roses. The severe winter like that of 1917-18 has injured 
several of the Roses of western China, although apparently none of 
them have been killed. Rosa Helenae, the handsomest perhaps of the 
Roses discovered by Wilson, has lost much of its wood and will not 
flower this year; and Rosa multihracteata, which has not been injured 
before, has been killed to the ground. The Chinese form of Rosa Rox- 
burgii (var. normalis), which flowered last year for the first time in 
the Arboretum, has had no flowers this season, although the wood has 
not been much injured. Rosa Moyesii has been little injured, but has 
flowered very sparingly and in the Arboretum has never lived up to 
the reputation it has gained in England. Rosa Hugonis was not injured 
by the winter, but it did not produce quite such a large crop of flowers 
as in previous years, and one exceptionally hot day nearly ruined these 
just as they were opening. No new development among Roses shows 
that the beauty of the flowers of Father Hugo’s Rose is equalled by 
that of any other Chinese species. Uninjured by the cold of the past 
winter, the form of Rosa multijiora from western China (var. cathay- 
ensis) has not before been more thickly covered with its pale pink clus- 
tered flowers. This Rose can be grown as a bush with long arching 
stems as it appears in the Arboretum, or it can be used successfully 
to cover a- large arbor, as it has in another Massachusetts gar- 
den. The flowers are as beautiful as those of most of the popular Ram- 
bler Roses of garden origin, and the plant is hardier than many of these 
Roses. To the students of Roses this form of Rosa multijiora is of 
interest as the wild type from which the Chinese obtained the popular 
“Crimson Rambler’’ Rose which for centuries before it was brought to 
this country had been a popular garden plant in China. Rosa bella, 
introduced by the Arboretum from northern China into western gardens, 
has never been injured here by cold. It is a tall stout shrub which 
produces every year in June great numbers of large rose-red flowers 
followed by showy fruits. A good garden plant for cold countries, Rosa 
bella might in the hands of a skilful plant-breeder have a useful influ- 
ence in a new race of hardy Roses. The winter has not injured Rosa 
caudata which promises to be one of the most useful of the western 
China Roses. It is a Cinnamon Rose and a vigorous growing shrub now 
more than six feet high, with stout arching stems covered with stout 
spines, handsome foliage and flowers two inches in diameter with pure 
pink petals marked with white at the base. The broad flower-clusters 
sometimes contain as many as twenty-five flowers, and as these open 
gradually the plant remains in bloom during at least a couple of weeks. 
The value of this Rose as a garden plant is increased by the fact that it 
is one of the few Roses in the collection which flower in July, and that 
its large orange red fruit is exceptionally handsome. Rosa omeiensis 
was not hurt during the past winter, but the form of this Rose (var. 
pterocantha) with the stems furnished with large bright red translu- 
cent spines lost considerable wood in the Shrub Collection. 
These Bulletins will now be discontinued until the autumn. 
