116 ORDER 45. SAXIFRAGACE^E. 



celled, 2-furrowed, 8-12-seeded. J> With alternate, simple leaves, and a 



simple, spicate, terminal raceme of white flowers. 



I. VlrginicaL. Swamps, Pa. to Fla. Gf. Lvs. oval, acuminate, short-stalked. May,Ca. 



12. ESCALLONIA RUBRA and E. GLASDULOSA are handsome shrubs, 

 with evergreen leaves and scarlet flowers, prized in the greenhouse. S. Am. 



13. HYDRANGEA, L. HYDRANGEA. Marginal fls. sterile, neutral 

 an enlarged, rotate 5-lobed, colored calyx only. $ Calyx tube hemispheri- 

 cal, adherent. Limb 4-5-toothed, persistent. Pet. ovate, sessile. Stamens 

 twice as many as the petals. Caps. 2-beaked, opening between the beaks. 

 Seeds oo. *> With opposite leaves. Fls. cynious, generally radiant. 



Cymes paniculate. Lvs. sinuate-lobed. Fls. rose-white No. 1 



Cymes corymbous, level-topped. Leaves undivided Nos. 2, 3, 4 



1 H. quercifolia Bartram. Lvs. deeply sinuate-lobed, dentate, tomentous beneath, 



and on the petioles and veins above ; cymes paniculate, radiant, the sterile fls. very 

 large and numerous. Shady banks, S. 4 Sf. A superb plant, t 



2 H. arborescens L. Lvs. ovate, obtuse or cordate at base, acuminate, serrate-den 



tate, paler beneath,' nearly smooth ; fls. white-red. Banks, S. and W. 5 Of. 



3 H. rad.ia.ta Walt. Lvs. ovate, abrupt or cordate at base, acuminate, serrate, silvery- 



tomentous beneath ; fls. white. Uplands. S. 6 Sf. 



4 H. HORTENSIS L. Changeable Hydrangea. Lvs. elliptical, narrowed at each end, den- 



tate-serrate, strongly veined, smooth. China ? 1 3f. In cultivation the fls. are gen- 

 erally all neutral, of varying hues, white, blue, pink, &c. 



14. DE CUM ARIA, L. Calyx 7-10-toothed, tube adherent to the 

 5-10-celled ovary. Pet, as many as calyx teeth, valvate hi the bud. Sta. 

 3 times as many as the petajs, hi one row. Stig. radiate. Caps, many- 

 ribbed, crowned with the style, oo-seeded. " With rootlets, opposite 

 leaves and cymes of white, fragrant flowers. 



D. barbara L. A beautiful climber, in damp woods, S. 15 30f. 



15. PHILADELPHIA, L. FALSE SYRINGA. Calyx 4^5-parted, halt 

 superior, persistent Cor. 4-5-petalled. Sty. 4-cleft. Sta. 20 10, shorter 

 than the petals. Caps. 4-celled, 4-valved, with loculicidal dehiscence. Sds. 

 many, arilled. *> Handsome. Leaves opposite, exstipulate. 



1 P. iiiodoru* L. Lvs. ovate, acute or pointed, 3 (rarely 5)-veined, smooth, entire 



or with remote slender teeth ; calyx lobes ovate, acute, as long as the tube ; styleg 

 united ; fls. scentless, 1 or several together, pure white, V. Uplands, S. 5 Sf. May-Jl. 



/3. s-randtfloru*. Pubescent ; flowers larger (1JO ; sepals acuminate. Cultivated. 



y. hir*utn*. Hairy ; leaves and flowers smaller, the latter V. Mt. woods. 



2 P. CORONARITJS. Mock Orange. Glabrous ; Ivs. ovate, remotely serrate above, 5-7- 



veined ; flowers in dense clusters, cream-white, very fragrant ; styles separate. S. 

 Europe. 5 Sf. June, July. 



16. DEUTZIA, Thunb. Pet. 5, valvate or imbricate in bud. Sta. 10, 

 the alternate longer, fil. dilated, 3-toothed, middle tooth antheriferous. Ov 

 inferior. Caps, o-5-celled. J> Leaves opposite. Fls. numerous, white. 



1 J>. SCABRA. Lvs. ovate, acute, serrate, rough-hairy ; racemes terminal, dense ; styles 



3 ; flowers bell-shaped. Japan. 5 8f. Very fragrant. June. 



2 D. GRAriLis. Foliage similar to the other, bu, smoot er. Shrub only a 3f, branches 



covered with flowers in June. 



