168 SAXIFRAGE FAMILY. 



t- •»- Green, or nearly so, beneath. 



H. arbor^scens, Linn. Wild from Penn. and Mo. S., rarely planted ; 

 is snKH)tli or nearly so, with ovate or slightly heart-shaped, serrate, 

 pointed leaves; the flat cyme often without any enlarged sterile flowers, 

 but sometimes with a full row round the margin. 



H. Hortensia, DC. (and II. Otaksa). Common Greenhouse Hy- 

 injANGE.4.. Is very smooth, with large and oval, coarsely toothed, bright 

 green glossy leaves, and the flowers of the round flattish cyme nearly 

 all neutral and enlarged, blue, purple, pink, or white. China and 

 Japan. 



H. panicu/ata, Sieb. Common Oltdoor or Hardy Hydrangea. More 

 or less pubescent, at least in the panicle, with oblong-ovate, sharply 

 toothed and long-pointed, dull leaves, which are roughish below, and an 

 elongated panicle of whitish flowers. Japan. 



9. DECUMARIA. (Name probably meaning that the parts of the 

 flower are in tens, which is only occasionally the case.) 



D. b^rbara, Linn. Along streams Va. and 8. ; a tall, mostly smooth 

 shrub, with long branches disposed to climb; ovate or oblong shining 

 leaves, and a compound terminal cyme of small white odorous flowers, 

 in late spring. 



10. PHILADELPHUS, MOCK ORANGE, SYRINGA. (Name an- 

 cient, of no application.) Syringa is the generic name of the Lilac. 

 Ornamental shrubs. 



P. coronarius, Linn. Common Mock Orange. Cult, from S. Eu. 

 Shrub with erect branches, smoothish oblong-ovate leaves, having the 

 taste and smell of cucumbers, and crowded clusters of handsome and 

 odorous cream-white flowers, in late .spring. 



P. inod6rus, Linn. Scentless M. Wild in upper districts S. ; shrub, 

 smooth, with spreading, slender branches, mostly entire, ovate-oblong 

 leaves ; rather small flowers scattered at the end of the diverging branch- 

 lets, and calyx-lobes not longer than the ovary. 



P. grandifl6rus, Willd. Large-fl. M. Wild along streams from 

 Va. 8., and planted in .several varieties ; tall shrul), with long recurving 

 branches, ovate and pointed, usually toothed, smoothish, or slightly downy 

 leaves, and very large, pure white, scentless flowers, in early summer, 

 either single or in loo.se clusters at the end of the branches, the slender- 

 pointed calyx lobes much longer than the ovary. 



Var. floribundus, Torr. & Gray (or P. latikulhis). Robu.st, 6°- 

 12° high, with tlie ovate and toothed, 5-ribbcd leaves hairy beneath, 

 and large, jnire white and nearly scentless flowers clustered, in early 

 summer. Cult. 



P. Gordon/anus, Lindl. From Ore. : is very tall, with ovate-acuminate 

 serrate leaves, the fluwers very slightly scented and numerous, in 5-9- 

 flowered racemes, in midsummer, 10 days or more later than other kinds. 



P. hirsiltus, Nutt. Hairy M. Wild in N. Car. and Tenn., and cult. ; 

 slender, with recurving branches, the small, ovate and acute, sharply- 

 toothed leaves hairy, and beneath even hoary ; the small white flowers 

 solitary or 2-3 together at the end of short racemose side branchlets. 



11. ITEA. (Greek name of Willow.) 



I. Virglnica, Linn. A tall shrub, with oblong, pointed, and serralate 

 leaves, and racemes of pretty white flowers, in early summer. Low 

 places, Penn., S. and W. 



