MIDSEASON FLOWERING TREES AND SHRUBS 47 



palachian Mountains and is a less desirable garden 

 plant. A fourth species (C. canescens), hardy in the 

 vicinity of Boston, hails from Japan and exceeds 

 in beauty any of the American kinds, but unfortu- 

 nately it does not readily make itself at home with 

 us. The inflorescence is larger than in the American 

 species and the plant grows to a greater size. As I 

 write I have in mind a fine specimen fully fourteen 

 feet high, which is growing on a windswept corner in 

 a garden at Winchester, Mass. Every year each 

 branchlet of this bush terminates in large clusters 

 of fragrant white flowers. In Japan this Pepper- 

 bush is widely distributed and in moist forests is 

 often a tree forty feet tall with a smooth gray-brown 

 trunk five feet and more in girth. 



At midseason the Spiraeas are all past but their 

 place is well taken by the closely allied genus Sorbaria 

 which is distinguished by its pinnate leaves and ter- 

 minal compound panicles of flowers. Five species 

 are hardy in the Arnold Arboretum and thrive in 

 ordinary garden soil. The best results are obtained 

 by planting them in rich loam in a moist place, and 

 by the side of a pond or stream their grace and beauty 

 are seen to best advantage. They are excellent sub- 

 jects for the wild garden and to develop their full 

 beauty they must have plenty of room. One of the 



