flower. This is a native of swamps in the northeastern part of the 
country where it sometimes grows twenty feet high. In cultivation it 
has proved one of the handsomest of all the Viburnums introduced into 
the Arboretum where it forms a round-headed compact shrub. The 
leaves, which are thick and lustrous vary greatly in size and shape. 
The flowers are slightly tinged with yellow and are borne in large 
slightly convex clusters; the fruit is larger than that of the blue-fruited 
shrubby species, and at first yellow-green later becomes bright pink 
and finally blue-black and is covered with a handsome pale bloom; fruits 
of the three colors are found together in the same cluster. The third 
of these species, Viburnum venosum, will not be in flower for another 
week. This resembles V. dentatum in general appearance and in the 
blue fruit, but the young branches and the under surface of the leaves 
are covered with a thick coat of stellate hairs. This Viburnum is found 
growing naturally only in the neighborhood of the coast from Cape Cod 
and Nantucket to New Jersey. A larger plant with large lustrous 
leaves and more showy flowers, and larger later-ripening blue fruit, 
Viburnum Canbyi, will not flower for two or three weeks. This plant 
appears to be confined to eastern Pennsylvania and northern Delaware, 
where it is by no means common; in cultivation it grows to a large size. 
One of the attractive plants now in flower in the Shrub Collection is 
Halimodendron argenteum, the so-called Salt-tree because it inhabits the 
saline steppes near the river Irtish in Siberia. The pale rose-colored 
fragrant pea-shaped flowers, which are produced in great profusion, 
are borne in small clusters, and their delicate beauty is heightened by 
the color of the leaves which are covered with a silky down. This 
plant remains in flower during several weeks in the Arboretum and 
produces abundant crops of pods but the seeds apparently are rarely 
fertile. 
The large and widely distributed genus Indigofera of the Pea Family 
has given a few beautiful small shrubs to our gardens. Two of these 
can now be seen in good condition on Hickory Path near Centre Street. 
The showier of the two, I. Kirilowii, is a low shrub spreading by un- 
derground stems, with ample leaves and comparatively large bright 
pink flowers in long racemes. It is a native of Korea. With it is a 
plant of Indigofera amblyantha , one of Wilson’s discoveries in western 
China and a slender little shrub with erect stems and axillary racemes 
of small rose-colored flowers which are produced continuously through 
the summer. Among Wilson’s discoveries there is not a more delight- 
ful small shrub than this. On the left-hand side of Azalea Path, near 
its entrance from the Bussey Hill Road are two other species of Indi- 
gofera, the white-flowered I. decora from China, and the purple-flow- 
ered I. Gerardiana from the Himalayas. The stems of these two plants 
are killed back to the ground every winter but new stems spring up in 
the spring, and as the flowers are produced on the new growth the 
killing of the old stems does not interfere with the flowering of these 
plants. 
The Arboretum will be grateful for any publicity 
given these Bulletins. 
