XXXIV. SAXIFRA X GE/E : HYDRANGEA. 



493 



900. H. (a.) corclkta. 



sylvania to Virginia. Height 4ft. to 6 ft. Introduced in 1736. Flowers 

 white, having an agreeable odour ; July and August. 

 Variety. 



st H. a. 2 discolor Ser. in Dec. Prod. 4. p. 14. Leaves almost white 



beneath from tomentum. 

 It prefers a moist soil, and is readily propagated by division of the roots. 



st 2. H. (A.) CORDA'TA Pursh. The cordate-leaved Hydrangea. 



Identification. Pursh Sept., 1. p. 309., exclusive of the synonyme 



of Michx. ; Don'sMill., 3. p. 232 

 Engravings. Wats. Dendr. Brit., t. 42. ; and our fig. 900. 



Spec. Char., fyc. Leaves broadly ovate, acuminated, 

 rather cordate at the base, coarsely toothed, 

 glabrous beneath. Flowers all fertile, small, 

 white, and sweet-scented. (Don's Mill.) A low 

 shrub. Carolina, on mountains, and on the banks 

 of the Missouri, above St. Louis. Height 6 ft. to 

 8 ft. Introd. in 1806. Flowers white ; July, Aug. 

 Variety. 



St H. (a.) c. 2 georgica, H. georgica Lodd. Cat., 

 differs from the species in flowering a little 

 later, and being rather more robust. 

 We agree with Torrey, in thinking this merely a variety of H. arborescens. 



st 3. H. NI'VEA Michx. The snowy-leaved Hydrangea. 



Identification. Michx. Fl. Bor. Amer., 1. p. 268. ; Don's Mill., 3. p. 232. 

 Synonyme. H. radiata Wai. Fl. Car. 251., ex Michx., but not of Smith. 

 Engravings. Wats. Dendr. Brit., t. 43. ; and our fig. 901. 



Spec. Char., Sfc, Leaves cordate, oval, acuminated, 

 sharply toothed, clothed with white tomentum, or pu- 

 bescence, beneath. Corymbs flattish. Sepals of sterile 

 flowers entire. Flower buds depressed. Flowers 

 white, rather large. (Don's Mill.) A low suffrutescent 

 shrub. North America, on the Savannah River. 

 Height in America 4 ft. to 6 ft. ; in England 2 ft. to 

 3 ft. Introd. 1786. Flowers white ; July and August. 

 Variety. 



St H. n. 2 glabella Ser. in Dec. Prod. 4. p. 14. Leaves nearly glabrous 

 beneath. Flowers all fertile. This variety has, probably, originated 

 in culture. 



a 4. H. QUERCIFO'LIA Bartram. The Oak-leaved Hydrangea. 



Identification. Bartram Trav., ed. Germ., p. 336. t. 7.; 



Don's Mill., 3. p. 233. 

 Synonyme. H. radiata Smith Icon. Pict. 12., but not of 



Walt. 

 Engravings. Bot. Mag., t. 975. ; and our fig. 902. 



Spec. Char., $c. Leaves large, ovate, ser- 

 rately lobed, and toothed, pilose beneath. 

 Corymbs rather panicled, flattish. Sepals 

 of sterile flowers entire. Flower buds 

 depressed. Flowers white. Sterile, or 

 outer, ones of the corymbs large. (Don's 

 Mill.) A shrub. Florida. Height 4 ft. 

 to 6 ft. in America ; 2 ft. to 3 ft. in Eng- 

 land. Introduced in 1803. Flowers 

 white ; June to September. 



This is by far the most interesting of the 

 North American hydrangeas, from its large, 

 deeply lobed, and sinuated leaves; and its 9 2 - H. yuercifdiia. 



901. H. nivea. 



