494 



ARBOUETUM ET FRUTICETUM BRITANNICUM. 



fine, large, nearly white corymbs of flowers, which are sterile, and appear 

 from June till they are destroyed by frost. Oultiire as in the other species ; 

 but it is essential that the situation be sheltered, and the soil kept some- 

 what moist, otherwise the leaves are not perfectly developed, and the branches 

 are apt to be broken oiF by high winds. 



^ 5. 



B. Species Natives of Asia. 

 H. heteroma'll4 D. Don. The <l\\eYse-ha\reA-leaved Hydrangea. 



Identificaiion. D. Don Prod. Fl. Nep., 



p. 211. ; Don's Mill., 3. p. 2^. 

 Engraving. Onr Jig. !I03. from a specimen in 



the LinnEean herbarium. 



Spec. Char., i<fc. Leaves oval, acu- 

 minated, sharply serrated, to- 

 nientose beneath, 5 in. long, and 

 nearly Sin. broad. Corymbs su- 

 pra-decompound, diffuse, pilose. 

 Sepals of sterile flowers roundish 

 oval, quite entire. Flowers white. 

 (Don's Mill.) A shrub. Ne- 

 pal, at Gossainthan. Height 4 ft. 

 to 6 ft. Introduced in 1821. 

 Flowers white ; ? July, August. 



A very vigorous-growing plant 

 in its native country, and probably 

 as hardy in British gardens as some 

 of the North American species. 



903. H. heteromilla. 



Identification 



3. p. 2a3. 

 Engravings. Wall. 1. c, t. .50. 



^ 6. H. ALTi'ssiMA Wall. The tallest Hydrangea 



Wal. Tent. Fl. Nep., 2. t. 50. ; Don's Mill. 



and OUT fig. 904. 



Spec. Char., Sfc. Leaves ovate, acuminated, 

 serrated, smoothish. Corymbs flattish. Ste- 

 rile flowers few, on pilose peduncles; aiahas- 

 tra, or fertile flowers, conical. (Don's Atill.) 

 A rambling shrub, which, according to Dr. 

 Royle, climbs lofty trees. Nepal, on moun- 

 tains. Height?. Introduced in 1839. Flow- 

 ers white ; ? July, August. 



Other Species of Hydrangea. //. Hortensia 

 Sieb., H. hortensis Smith, a well-known orna- 

 ment of gardens, is sufli'utescent and hardy in 

 the S. of England. Even in the climate of Lon- 

 don it lives in sheltered situations in the open 

 garden, because, though frequently killed to the 



ground, it always springs up again, and even flowers. If. vcstita Ws 

 native of Nepal, is probably as hardy as H. altlssima, and would be a 

 desirable introduction. 



Order XXXV. UMBELLA CE^E. j 



i 



Ord. Char. Calyx entire or toothed. Petals 5, entire, en]a.-ginate, or 2- j 

 lobed, each usually drawn out into a replicated or involuted point. I 

 Stamens 5. Ovarium 2.celied. Styles 2. Fruit of 2 separating pericarps, j 

 adhering by their faces to the carpophore. Fruit ribbed or winged. Peri- 



