KKY TO THK SPKCIKS OF MOCK ORAXCKS 



199 



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



only as long as tube. A vigorous shrub of drooping h;iliit. 



ODORLESS SYRINGA Philadelplms inodorus. 

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



leaves hairy beneath, l-2 inches long. HAIUY SYKIN<;A (309) - 



riiiladelphus hirsiitus. 



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

 (-1 inch long). SMALL-LEAVED SYRIXGA 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 1^-2 inches broad, creamy-white, about scent- 

 less. BROAD-LEAVED SYRINGA (310) Philadelphia pube"scens. 



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



5-'J in clusters. (C.) 

 C. Flowers pure white, scentless (1-1 f inches broad). GORDON'S 



SYRIXGA (311) Philadelphia Gordonianus. 

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



horizontal cracks. LEWIS' SVRINGA Philadelphus Lewisi. 

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

 cracks. SATSUMA SYRIXGA Philadelphus satshmi. 



FIG. 312. Itea. 



&fV -V > v ^ 

 6& * 



FIG. 313. Golden Currant. 



