i86 



SAXIFRAGACEAE. 



[Voi,. II. 



Flowers inodorous, solitary or few. 



Calyx-lobes about equalling the tube. 



Calyx-lobes about twice as long as the tube. 

 Flowers racemose, numerous, fragrant. 



1. P. inodorus. 



2. P. grandiflorus. 



3. P. coronarius. 



i. Philadelphus inodorus L,. Scent- 

 less Syringa. (Fig. 1861.) 



Philadelphus inodorus L. Sp. PI. 470. 1803. 



A shrub, 6-8 high, glabrous or very nearly so 

 throughout. Leaves ovate or oval, acute or acu- 

 minate at the apex, rounded or sometimes nar- 

 rowed at the base, 2'-$' long, strongly 3-nerved, 

 serrate with small distant teeth, or entire; flowers 

 white, inodorous, about i' broad, solitary or 2 or 

 3 together at the ends of short branches; calyx- 

 lobes triangular-ovate, acute, about as long as the 

 tube; capsule about 3" high. 



In thickets, Virginia to Alabama and Georgia, 

 principally in the mountains. Escaped from culti- 

 vation in Pennsylvania. May. 



2. Philadelphus grandifldrus Willd. 

 Large- flowered Syringa. (Fig. 1862.) 



Philadelphus grandiflorus Willd. Knum. Hort. 

 Berol. 511. 1809. 



A shrub, 6-lo high, resembling the pre- 

 ceding species and perhaps not specifically dif- 

 ferent. Leaves broadly ovate or oval, more or 

 less pubescent, especially beneath, $'-$' long, 

 acuminate at the apex, rounded or narrowed at 

 the base, sharply dentate, 3-nerved; flowers i- 

 3 together at the ends of the branches, and 

 sometimes also axillary to the upper leaves, 

 white, inodorous, i%'-2' broad; calyx-lobes 

 lanceolate, acuminate or acute, twice as long 

 as the tube; capsule about 3" high. 



In low grounds, Virginia to Tennessee and 

 Florida. April-May. 



3. Philadelphus coronarius L. 



Garden Syringa. Mock Orange. 



(Fig. 1863.) 



Philadelphus coronarius L. Sp. PI. 470. 1753. 



A shrub 8-io high. Leaves short-peti. 

 oled, oval, elliptic or ovate-elliptic, z'-tf long, 

 glabrous above, pubescent beneath, acute or 

 acuminate at the apex, rounded or narrowed at 

 the base, denticulate with distant teeth, 3- 

 nerved; flowers numerous, racemose at the ends 

 of the branches, I'-iJ^' broad, creamy white, 

 very fragrant; calyx-lobes ovate, acute, longer 

 than the tube. 



Escaped from gardens in Virginia and Ohio, 

 and sparingly in the Middle and Eastern States. 

 Native of central Europe. May-June. 



