44 
because it flowers three or four weeks later than C. jiorida. C. Kousa 
is a native of central Japan and was found in western China by Wilson. 
The Japanese and Chinese plants are both now in flower, the former 
on Hickory Path near Centre Street and the latter with the Chinsse 
shrubs on the southern slope of Bussey Kill. The floral bracts of the 
Chinese plant in the Arboretum overlap and are broader and less 
pointed than those of the Japanese form, and the inflorescence, which 
is three inches across,, is much handsomer than that of the Japanese 
plant. The handsomest form of the Japanese tree which has been 
seen in this neighborhood is growing in Mount Auburn Cemetery where 
it has become an object of much beauty and interest. 
Indigofera Potaninii has been raised at the Arboretum from seeds 
collected in the Province of Kansu by William Purdom during his col- 
lecting trip in northern China for the Arboretum. It is a beautiful 
little shrub now in bloom for the second year in the collection of Chin- 
ese shrubs on the southern slope of Bussey Hill. As it grows here it 
is three, to four feet high, with a single stem and slender erect branches. 
The flowers are bright rose color, half an inch long, in long-stalked, 
erect and spreading racemes from two to three inches in length, from 
the axils of leaves on branches Of the current year, and as the branches 
lengthen new flower-clusters appear and the plant remains in bloom for 
a long time. The flowers are of the same color but are larger than 
those of Indigofera amblyantha which Wilson found in western China 
and which until 7 . Potaninii bloomed was considered the handsomest 
shrubby species which could be growm here. 
Cornus rugosa. Attention is called to the value of this common na- 
tive shrub for the decoration of parks and gardens where, like many 
other eastern American trees and shrubs, it is rarely seen. C. rugosa, 
or C. circinata as it is still best known, is a shrub sometimes ten feet 
high which with plenty of space spreads into broad thickets. The 
young branches are green blotched wdth purple, becoming purple 
as they grow older. The leaves are broad, sometimes nearly circular, 
and dark bluish green; the flowers are ivory white, in compact clus- 
ters, and are followed in the early autumn by bright blue or nearly 
white fruits. This Cornel has been much planted in the Arboretum 
and is greatly improved by good cultivation. It can be seen in the 
Cornel Group at the junction of the Meadow and the Bussey Hill Roads; 
and the large individual plants and the great clumps on the right-hand 
side of the Bussey Hill Road beyond the Lilacs, and the masses among 
the Hickories in the group of these trees show the value of this shrub 
in park planting when great compact masses of foliage are needed. 
Rosa multiflora, var. cathayensis is in flower on the southern slope 
of Bussey Hill. This is a climbing Rose with single pink clustered 
flowers and the Chinese representative of the better known white-flow- 
ered Rosa multiflora. This variety cathayensis is one of the most 
beautiful plants of its class, and is interesting as the wild plant from 
which have been derived the Crimson Rambler, such old-fashioned gar- 
den plants as Rosa multijiora carnea and R. multijiora platyphylla, 
long popular in England under the name of the Seven Sisters Rose. 
