616 



HORTICULTURE 



June 28, 1919 



A HORSECHESTNUT FROM JAPAN. 

 Aesculus turbinata, the Japanese 

 Horsechestnut, first came to the Ar- 

 nold Arboretum from France in 1881; 

 this plant was lost, and in 1893 it was 

 raised from seeds collected in Japan 

 by Professor Sargent. These plants 

 were also lost, but another supply was 

 raised in 1900 from seeds produced by 

 the fine specimen in the nursery of 

 Ellwanger & Barry in Rochester, New 

 York, and one of these plants has flow- 

 ered this year. In Japan this Horse- 

 chestnut is a magnificent tree, often 

 growing to a height of eighty or ninety 

 feet and forming a tall trunk occasion- 

 ally seven feet in diameter. Like the 

 European Horsechestnut the leaves are 

 composed of seven leaflets, but these 

 are thinner and more lustrous, and 

 the leaf-stalks are longer. The Japan- 

 ese tree in summer therefore appears 

 less dark and massive than the com- 

 mon Horsechestnut. The flower-clus- 

 ters are narrower and the flowers, 

 which are white with scarlet markings 

 at the base of the petals, are hand- 

 somer. Aesulus turbinata, which 

 grows to its largest size in central and 

 northern Japan, is perfectly hardy in 

 New England. Time only can show if 

 it is able to live as long and grow to 

 as large a size here as in its native 

 country. If it succeeds here as the 

 Horsechestnut of the mountains of 

 Greece has succeeded during the last 

 hundred years it will prove to be one 

 of the handsomest exotic trees which 

 has been planted in eastern North 

 America. Aesulus turbinata is one of 

 the five largest deciduous leaved trees 

 of eastern Asia. The others are Cer- 

 cidiphyllum japonicum, Populus Maxi- 

 mowiczii, Acanthopanax ricinifolium, 

 and Zelkowa serrata. These five trees 

 are now established in the Arboretum. 



CORNUS RUGOSA. 



Attention is called again to the value 

 of this common native 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, the name by 

 which it is best known, is a shrub 

 sometimes ten feet high which with 

 plenty of space spreads into broad 

 thickets. The young branches are 

 green blotched with 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 clusters, 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 im- 

 proved by good cultivation. It can be 

 seen in the Cornel Group at the junc- 

 tion of the Meadow and the Bussey 



Hill Roads; and the large individual 

 plants, the great clumps on the right- 

 hand side of the Bussey Hill Road be- 

 yond the Lilacs, and the masses among 

 the Hickories in the groups of these 

 trees show the value of this shrub in 

 park planting when broad compact 

 masses of foliage are needed. 



— Arboretum Bulletin. 



A GOOD COMBINATION. 

 Two native plants, Cornus racemosa 

 and Rosa virginiana, or, as it is often 

 called, R. lucida, are in flower at the 

 Arnold Arboretum and the pure pink 

 flowers of the Rose harmonize so well 

 with the creamy white flowers of the 

 Cornel that these two plants can well 

 be used together in natural planting. 

 Rosa virginiana is confined to the 

 northeastern seaboard region of the 

 continent, and in its best form is a tall 

 shrub with lustrous leaves and pure 

 pink flowers which now perfume the 

 borders of the roads in some parts of 

 the Arboretum. A beautiful floral dis- 

 play is also made when this Rose 

 grows with the native Elder (Sambu- 

 cus canadensis), as it does sometimes 

 in the rear of Massachusetts sea clifls. 



THE NEW CLIMBING ROSE, 

 DR. HUEY. 



A new climbing rose which attracted 

 special attention at the recent meeting 

 of the American Rose Society in Phil- 

 adelphia has been named Dr. Huey. It 

 is a rose which seems likely to become 

 widely distributed and prove highly 



popular. It was originated by Mr. 

 George C. Thomas, Jr.. whose descrip- 

 tion is as follows: 



"The new climbing rose, Dr. Huey, 

 was bred in 1914 and is a cross be- 

 tween the Wichuriana, Ethel, intro- 

 duced by Turner in 1912, and Gruss an 

 Teplitz. It bloomed for the first time 

 in 1916. The great majority of bloom 

 comes into full flower within a week, 

 the flowers being in clusters of three 

 or four, with an occasional single 

 bloom. At Philadelphia the rose be- 

 gins to flower the first week in June, 

 and the blooming period lasts for 

 three weeks. 



"The bud of Dr. Huey is three- 

 fourths of an inch long, while the open 

 flower is a full two inches across. It 

 has fifteen petals of dark crimson 

 maroon, while the stamens and anthers 

 are light yellow. The substance of the 

 petals is medium, but the rose lasts 

 a long time cut as well as on the bush. 



"The young foliage shows its Tep- 

 litz blood with reddish-brown tea col- 

 oring. The old foliage is medium 

 green in color. The value of this rose 

 lies in its absolutely unique and dis- 

 tinct coloring, as it is a dark crimson 

 maroon of great brilliancy, universally 

 pronounced to be a different color from 

 that of any climbing rose in cultiva- 

 tion." 



The rose was named in honor of Dr. 

 Robert Huey of Philadelphia, who is 

 grown roses as a hobby for nearly a 

 half century. 



New Rose Named for I)r. Huey 



