DECIDUOUS TREES AND SHRUBS. 89 



Some of the species are evergreen and of j^rostrate 

 growth, very suitable for edgings and rock-work, but 

 rather tender. Of these the Box-leaved Cotoneaster [C. 

 huxifolia) is very dwarf, producing white flowers ; and 

 the Small-leaved Cotoneaster {C. micro])hyUa) with at- 

 tractive dark-green leaves. 



ST. JOHN'S WORT. Hyjjericinn. G, 



Pretty, low shrubs, flowering in July and later, and 

 have the merit of succeeding well in the shade and under 

 the drip of trees. 



Kalm's Hypericum [H. Kahnianiim) is a fine, low 

 shrub, with small, oblanceolate leaves, and bright yellow 

 flowers. Shrubby Hypericum (H. prolificum), varying 

 but slightly from the above, having clusters of larger 

 flowers. H. calycinum is of trailing habit, with yellow 

 floAvers. H. jmtulum is a Japanese species, said to be at- 

 tractive. 



THE STYRAX. Styrax. G. 



The Japan Styrax {S. Japonicd) is a low-growing 

 shrub of picturesque sppearance, with small. Dogwood- 

 like leaves, and white, bell-shaped flowers. Hardy as 

 far north as New York City. 



THE EXOCHORDA. ExocJiovcla gvandiflora. G. 



This is a beautiful, hardy shrub from China, closely 

 related to the Spiraeas, but distinct from them in habit 

 and appearance. The leaves are a tender-green in color, 

 and the flowers pure white, opening in May. 



spiR.^A. SpircBa. E.-H. 



A genus containing many species, among which, and 

 their varieties, are a number of fine, ornamental shrubs. 

 Only the most valuable kinds are here noticed. 



