348 List of Shrubs 



winter. They thrive in any except a very wet soil, and prefer light, 

 but can stand half shade. 



C. horizontalis Decne (98), from China, a half-hardy, low shrub, 

 with almost horizontal branches; is one of the most effective shrubs for 

 rockeries, with half evergreen, roundish foliage, and single, pinkish- 

 white flowers and bright red fruit. 



C. microphylla Wall. (99), a dense, prostrate shrub from the Hima- 

 layas, has similar features, but oblong, glossy, evergreen foliage. 



C. Simonsi Bak. (100), and C. frigida Wall. (loi), the former less 

 hardy, are large, beautiful shrubs, both in flower and fruit. 



Besides these evergreen species there are two deciduous ones, bear- 

 ing their white flowers in showy, flat-topped clusters: C. midtiflora 

 Bonge. (102), a large Xfive to eight feet) shrub from China, with 

 slender, curving branches, a very rapid grower, and attractive with its 

 red berries; 



C. nummiilaria Fisch. & Mey. (103), native of the Himalayas, 

 hardy, smaller, and more upright than the preceding, flowering later 

 and more profusely, the red berries persisting into winter. 



*Exochorda. E. grandiflora Lindl. (104), Pearl Bush, a tall (eight to 

 ten feet), hardy (not in Ottawa), Chinese shrub, growing sometimes into 

 tree form, can only by proper pruning be kept in good form; is prized 

 for the profusion of graceful festoons of pearl-white, early flowers (April, 

 May), a floral gem for refined plantations. Unfortunately, the flowers 

 are of short duration, and as they furnish the chief ornamental value of 

 the shrub, it should be planted only in the interior of groups. It 

 requires a moist, fertile soil. 



Pirus and Prunus {Almond, Apple, Cherry, Peach, Pear, Plum, 

 Quince), see under Trees [List C]. 



Physocarpus, see Spiraea. 



Rhodotypus. R. kerrioides S. & Z. (105), a small shrub from Japan, 

 hardy to Massachusetts, half hardy in Ottawa, has few equals in grace- 

 ful, delicate, slender-pointed green foliage, borne on a multiplicity of 

 branches, tipped in spring with conspicuous, large, white, solitary, 

 rose-like flowers, followed by a dry, somewhat shiny, black, apple-like 

 fruit, hanging into winter. It requires a well-drained, fertile soil. 



Rosa. Rose. Rose culture is an art by itself, and an endless variety 

 of flowers have been produced by hybridization, besides the hundred or 

 more species. For ornamental use outside the flower garden, and for 

 hedges and ground cover, at least three species deserve attention, to be 



