11 f> 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. Vtrginlca L. Swamps, Pa. to Fla. 6f. Lvs. oval, acuminate, short-stalked. May,ca. 



12. ESCALLONIA RUBRA and E. GLANDULOSA 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 GO. J) With opposite leaves. Fls. cymous, generally radiant. 



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



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



1 H. querclfolla Bartram. LVP. deeply sinuate-lobed, dentate, tomentons beneath, 



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

 large and numerous. Shady banks, S. 4 8f. 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 (if. 



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



tomentotis beneath ; fls. white. Uplands, S. (i 8f. 



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



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

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



14. DECUMARIA, L. Calyx 7-10-toothed, tube adherent to the 

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

 3 times as many as the petals, in 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. PHILADELPHUS, L. FALSE SYRINGA. Calyx 4-5-partecl, halt 

 superior, persistent, Cor. 4-5-pctalled. Sty. 4-cleft. Sta. 20 40, shortei 

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

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



1 P. Inodorus 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 ; styles 

 united ; fls. scentless, 1 or several together, pure white, 1'. Uplands, S. 5 8f. May-Jl. 



/3. g-randiflorug. Pubescent; flowers larger (1 JO; sepals acuminate. Cultivated. 



y. hlrxuluK. Hairy ; leaves and flowers smaller, the latter 7". Mt. woods. 



2 V, CORONARIUS. Mock Orange. Glabrous; Ivs. ovate, remotely serrate above. 5-7- 



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

 Europe. 5 8f. June, July. 



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

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

 inferior. Caps. 3-5-celled. J> Leaves opposite. Fls. numerous, white. 



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



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



2 D. GRA.CILIS. Foliage similar to the other bul smoot er. Shrub only 2--- it, branches 



covered with flowers in June. 



