CHAP. XI. riSTA N CE^E. CI ST us. 321 



and flowering in July and August. It will endure our mildest winters in the 

 open air; but in severe frosty weather it will require to be protected by 

 glass, or by some slight covering. Plants of this species were in the Ham- 

 mersmith Nursery in 1826. 

 Variety. 



*l C. i. 2 canescens. The canescent-le&ved Cistus, or hoary Rock 

 Rose. C. canescens Swt. (Don's Mill., i. p. 298.) ; Cistus mas Clus.; 

 C. incanus var. (3 Dec. (Swt. Cist. t. 45.) — Leaves oblong-linear, 

 bluntish, tomentose, hoary, waved, rather 3-nerved, sessile, some- 

 what connate at the base. Peduncles terminal, 1-flowered, or 

 somewhat cymose. Sepals ovate, acute, nerved, clothed with starry 

 pubescence. Petals obovate, distinct. (Don's Mill., i. p. 298.) 

 Native of the south of Europe. A shrub growing to the height of 

 2 ft. in British gardens, and greatly resembling the preceding species; 

 the general colour and surface of the plant being the same, and also 

 the colour of its flowers. Mr. Sweet says that he has no doubt of 

 its being perfectly distinct; which it may be, and yet be only a 

 variety. It is tender, and requires protection like the species. 



n. 8. C. undula v tus Dec. The waxed-leaved Cistus, or Rock Rose. 



Identification. Dec. Prod., 1. p. 264. ; Don's Mill., 1. p. 299. 



Synonymes. C. creticus Swt.,t. 63., afterwards corrected to C. undulatus ; perhaps C. crispus var. Don. 



Engraving. Swt. Cist, t. 63., under the name of C. creticus. 



Spec. Char., fyc. Leaves sessile, linear-oblong, acute, with waved margins, 

 3-nerved at the base. Peduncles solitary, each furnished with a bractea. 

 Sepals taper-pointed, villous. (Don's Mill., i. p. 299.) A shrub 2 ft. 

 high, cultivated in collections, but of which the native country is un- 

 known. It has purple flowers, which appear in June and July; and is 

 probably a hybrid. It is rather tender, and not very frequently to be met 

 with. It was in the Hammersmith Nursery, when Mr. Sweet's drawing was 

 made, in 1827. 



*l 9. C. cri'spus L. The curled-leaved Cistus, or Rock Rose. 



Identification. Lin. Sp., 738. ; Swt. Cist, 22. ; Don's Mill., 1. p. 299. 

 Synonymes. Ciste crepu, Fr. ; krause Cisten Rose, Ger. 

 Engravings. Cav. Icon., 2. t. 174. ; Swt. Cist, 22. 



Spec. Char., fyc. Leaves sessile, linear-lanceolate, undulately curled, 3-nerved, 

 wrinkled, pubescent. Flowers almost sessile, 3 or 4 together, somewhat 

 umbellate. (Don's Mill., i. p. 299.) Native of the south of France, Spain, 

 and Portugal, and introduced into England in 1656. It is a shrub, 

 growing to the height of 2 ft., and producing showy purple, or reddish 

 purple, flowers in July and August. The leaves are ribbed, or nerved, and 

 covered with hairs, much undulated at the edges, and of a whitish green. 

 They vary considerably in size, as well as in form. It is a very distinct sort, 

 and forms a very pretty bush, which will stand the severity of our winters 

 without protection. Cuttings of the young wood, Mr. Sweet observes, 

 planted under hand-glasses in autumn will strike root readily ; but they will 

 not strike so freely in summer. Plants of this kind were in the Fulham 

 Nursery in 1826. 



n. 10. C. a'lbidus L. The white-leaved Cistus, or Rock Rose. 



Identification. Lin. Sp., 737. Don's Mill., 1. p. 299. 

 Synonymes. Ciste blanchatre, Fr. ; weissliche Cisten R«e, Ger. 

 Engraving. Swt. Cist, t 31. 



Spec. Char., cfc. Leaves sessile, oblong-elliptical, hoary-tomentose, somewhat 

 3-nerved. Flowers 3 or 8, terminal, somewhat umbellate. Outer sepals 

 largest. (Don's Mill., i. p. 299.) Native of France, about Narbonne, Spain, 

 and Portugal. In British gardens, a shrub growing to the height of 2 ft., 

 erect, much branched, and thickly crowded with white hoary leaves. The 

 flowers, which are of a pale purple, a bright lilac, or a pale rose colour, 

 terminate the branch in a sort of umbellate corymb, and appear in 



a a 2 



