KEY TO THE SPECIES OF MOCK ORANGES 



199 



A. Flowers as in the last but a little smaller, scentless ; calyx lobes 



only as long as tube. A vigorous shrub of drooping habit. 



Odorless Stkinga — Philadelphus inodorus. 

 A. Flowers on short branchlets with 1-3 creamy-white flowers ; 



leaves hairy beneath, 1-2^ inches long. Hairy Syringa (309) — 



Philadelphus hirsiitus. 



A. Flowers nearly solitary, 1 inch broad, very fragrant ; leaves entire 

 (J-1 inch long). Small-leaved Sykinga — Philadelphus mi- 

 crophyllus. 



* Bark of old branches not peeling off ; flowers in simple racemes. (B.) 



B. Calyx hairy outside ; bark gray ; tall, to 20 feet ; racemes 5-11- 

 flowered, flowers lJ-2 inches broad, creamy-white, about scent- 

 less. Broad-leaved Syringa (310) — Philadelphus pubfecens. 



B. Calyx smooth outside ; bark brown or grayish brown ; flowers 

 5-9 in clusters. (C.) 

 C. Flowers pure white, scentless (1J-1| inches broad). Gordon's 



Syringa (311) — Philadelphus Gordoniinus. 

 C. Flowers smaller, about 1 inch, scentless ; bark with numerous 



horizontal cracks. Lewis' Syringa — Philadelphus Lfiwisi. 

 C. Flowers 1 inch , slightly fragrant ; bark with whitish longitudinal 

 cracks. Satsuma Syringa — Philadelphus satsiiiiii. 



Fig. 312. — Itea. 



Fig. 313. — Golden Currant. 



