IIYDRANGEACEAE. 



Vol. II. 



I. Philadelphus inodorus L. Scentless 

 Syringa. Fig. 2189. 



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 ; flow- 

 ers white, inodorous, about l' 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 Georgia, Kentucky and 

 Mississippi, principally in the mountains. Escaped 

 from culti\"ation in Pennsylvania. May. 



2. Philadelphus grandiflorus Wiild. 

 Large-flowered Syringa. Fig. 2190. 



Philadell>htis grandiflorus Willd. Enum. Hort. Berol. 

 511, 1809. 



A shrub, 6-io high, resembling the preced- 

 ing species and perhaps not specifically different. 

 Leaves broadly ovate or oval, more or less pu- 

 bescent, especially beneath, 3-5' long, acuminate 

 at the apex, rounded or narrowed at the base, 

 sharply dentate, 3-nerved ; flowers 1-3 together 

 at the ends of the branches, and sometimes also 

 axillary to the upper leaves, white, inodorous, 

 li'-2' broad; calyx-lobes lanceolate, acuminate, 

 twice as long as the tube; capsule about 3" high. 



In low grounds, Pennsylvania to Virginia, Ten- 

 nessee and Florida, April-May. 



3. Philadelphus coronarius L. Garden 

 Syringa. 2\Iock Orange. Fig. 2191. 



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



A shrub 8-io high. Leaves short-petioled, 

 oval, elliptic or ovate-elliptic, 2'-^' long, glabrous 

 above, pubescent beneath, acute or acuminate at 

 the apex, rounded or narrowed at the base, den- 

 ticulate with distant teeth; 3-nerved; flowers 

 numerous, racemose at the ends of the branches, 

 I'-ii' 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. Orange-flower tree, May-June. 



3. DECUMARIA L. Sp. PI, Ed. 2, 1663. 1763. 



W'oody climbing vines, with opposite petioled leaves, and terminal corymbose perfect 

 flowers. Stipules none. Calyx-tube top-shaped, adnate to the ovary, its limb 7-10-toothed. 



