994 ARBORETUM AND FRUTICETUM. PART irr. 



* E.Jlorihunda H. B. et Kunth is a native of New Granada, on the Ancles, 

 with white flowers, and sliining leaves, which are clammy when yoimg. The 

 plant of this name, in the British gardens, appears to be only a variety of the 

 preceding species. 



tt E. resinosa Pers., Stereoxylon resinosnm Ruiz et Pav,, is a glabrous 

 shrub, a native of Peru, on the cold parts of hills. A plant of this species has 

 stood against a south wall, in the Kew Gardens, since 1832. 



« K. pidvcrulcnta Pers., Stereoxylon pulverulentuni Ruiz et Pav., is a 

 shrub, hair} in every part, with white flowers ; growing to the height of 8 ft. or 

 10 ft. It is a native of Chili ; and plants of it have been in the Horticultural 

 Society's Garden since 1831. 



Twenty other species are described in Don's MiUei-./m. p. 193. top. 195., all 

 natives of South America, and probably as hardy as those above mentioned ; 

 but it does not appear that any of them have been introduced. 



CHAP. LVII. 



OF THE HARDY AND HALF-HARDY LIGNEOUS PLANTS OF THE 

 ORDER SAXIFRA^GEiE, TRIBE HYDRA'nGE.^. 



The only woody plants contained in this order are included in the tribe 

 Hydrangea;, which contains the well-known green-house, or rather cold- 

 frame, plant. Hydrangea Hortens/V/, that may be considered as half-hardy ; and 

 some species, natives of North America, which are quite hardy. There are 

 also some half-hardy species, natives of Asia. They arc all easily propagated 

 by cuttings, and will grow freely in any soil that is rather moist. 



Genus I. 



La 



HYDRA'NGEA L. The Hydrangea. Lin. Sj/st. Decandria 

 Di-Trigynia. 



Identification. Lin. Gen., 557. ; Dec. Prod., 4. p. VZ. ; Don's Mill., 3. p. 232. 

 Synoyiymrs. Hydrangea, and Hortcinsm Juss. 



Derivation. From hiidur, water, and agpo.i, a vessel ; with reference to some of the species which 

 grow in water; or, as some suppose, from the capsule resembling a cup. 



Gen. Char. Flowers generally deformed ; but some of them hermaphro- 

 dite and fertile. Tube of cnli/jr hemispherical, 10-ribbed, rather trun- 

 cate, adnate to the ovarium; limb permanent, 5-toothed. Petals 5, 

 regular. Stamens 10. Stt/les 2, distinct. Capsule 2-celled, with intro- 

 flexed valves, crowned by the teeth of the calyx and styles, flattish at the 

 top, opening by a hole between the styles. Seeds numerous, reticulated. 

 {^Don^s Mill., iii. p. 232.) — Shrubs, with opposite leaves. Flowers corym- 

 bose, pink, or yellowish white; the marginal ones sterile, and large, in con- 

 sequence of the teeth of the calyx being dilated into broad, pctal-like- 

 coloured segments ; the rest of the sterile flower having the other parts 

 partially abortive. 



A. Species Natives of North America. 

 S4 1. H. arbore'scens Ij. The arborescent Hydrangea. 



Identification. Lin. Sp., p. 568. ; Don's Mill., 3. p. 232. ; Lodd. Cat., cd. 1836. 

 Engraving. Our Jig. 748. 



Spec. Char., i^c. Leaves ovate, rather cordate ; superior ones lanceolate, 

 coarsely toothed, pale and pubcrulous beneath. Corymbs flattish. Flowers 



