192 



OF -nn: siiunss 



KEY TO THE SPECIES OF DEUTZIA 



* Flowers in elongated clusters with the petals edge to edge, not lap- 

 ping. (A.) 



A. Low plant, 2 feet, with small light green rough leaves ; flowers 



in compound clusters, panicles. SIEBOLI>'S DEUTZIA Deutzia 



Sieboldiana. 

 A. Low plant, 3 feet, with small, bright green rather smooth 



lra\rs and flowers in nearly simple clusters, racemes. 



SLENDER DEUTZIA or BRIDAL WREATH (294) Deutzia gracilis. 



A. Tall plant. <i feet, with dull green rough leaves (1-3 inches 

 long) ; flowers in compound clusters, panicles. ROUGH-LEAVED 

 DEI TZIA (295) Deutzia scabra. 



* Flowers in broad clusters, corymbs. (B.) 



B. Tall, 7 feet ; flowers white with the petals edge to edge in the 

 bud; leaves dark green above, much paler beneath. Deutzia 

 discolor. 



B. 3-4 feet ; petals edge to edge, pinkish outside ; calyx red. PA- 

 TUNG SNOW-FLOWER Deutzia discolor purpurascens. 



B. Spreading shrub to 3 feet ; flowers white with petals partially 



lapping in the bud. LEMOIXE'S 

 DEUTZIA (297) Deutzia Le- 

 nioinei. 



B. Erect shrub to 6 feet ; flowers with 

 their petals decidedly lapping at 

 their edges in the bud. SMALL- 

 FLOWERED DEUTZIA Deutzia 

 parviflora. 



Hydrangea. The most popular 

 shrub in cultivation North at the 

 opening of the twentieth century 

 was, probably, a variety of one of the 

 25 species of Hydrangeas, LARGE- 

 FLOWERED HYDRANGEA (298) Hy- 

 drangea paniculata grand iflora. The 

 Hydrangeas have opposite simple 

 serrated (rarely lobed) leaves. The 

 flowers are usually of two kinds in 

 large more or less rounded clusters. 

 small ones with 4 or 5 petals and 

 8 or 10 stamens, producing small cap- 



FII ;. 298. Large-flowered 

 Hydraugea. 



