340 ARBORETUM AND FRUTICETUM. PART III. 



^ 42. H. VIXEA'LK Pers. The Vineyard Helianthemum, or Sun Rose. 



Identification. Pers. Ench., 2. p. 77. ; Don's Mill., 1. p. 309. 

 Synonymc. Cistus vinealis IVUld. Sp.,2. p. 1150. 

 Engraving. Swt. Cist , t. 77. 



Spec. Char., <$c. Suffruticose, procumbent. Branches ascendent, pilosely 

 tomentose, canescent. Leaves ovate-oblong; upper surface green, strigosely 

 pilose, under surface tomentose, hoary. Racemes simple, few-flowered, and 

 are, as well as the calyxes, pilosely tomentose, canescent. (Don's Mill.,\. 

 p. 309.) A native of the south of Germany, Switzerland, France, and 

 Spain ; and introduced in 1817. It is a trailing plant, growing to about 

 1 ft. in height, and producing its pale yellow flowers in June and July. 

 Sweet says that it is covered with flowers during a great part of the summer. 

 After flowering, most of its leaves become quite silvery on both sides. It 

 requires very little protection. Plants were in the Chelsea Botanic Garden, 

 raised from seeds received from Germany, in 1828. 



<u. 43. H. CA'NUM Dunal. The hoary Helianthemum, or Sun Rose. 



Identification. Dunal ined., and Dec. Prod., 1. p. 277 ; Don's Mill., 1. p. 309. 

 Synonymes. Cistus canus Lin. Sp., 740. ; Chamaecistus, iii., Clus. Hist., p. 74. 

 Engravings. Swt. Cist., t. 56. ; Jacq. Aust, t. '277. ; All. Pcd., No. 16(54. t 45. 



Spec. Char., fyc. Stem suffruticose, procumbent, branched, ascendent, pilosely 

 tomentose, hoary. Leaves obovate, ovate, ovate-oblong, or elliptical, pilose ; 

 upper surface green, under surface somewhat tomentose, hoary. Racemes 

 simple. Pedicels and calyxes pilose, canescent. Petals distinct. (Don's 

 Mill., i. p. 309.) Found wild in the south of France and Germany, and pro- 

 bably also in Britain. It is a procumbent shrub, which has been cultivated 

 in British gardens since 1772, and produces its yellow flowers in June and 

 July. It is nearly related to H. alpestre, and H. vineale; and, according to 

 Sweet, is sometimes mistaken for H. warifolium. Plants were in ColvilFs 

 Nursery, at Chelsea, in 1827. 



<u 44. H. J/ARiFo v J.iU3i Dec. The Marum-leaved Helianthemum, or Sun 



Rose. 



Identification. Dec. Fl. Fr., 4. p. 817. ; Don's Mill., 1. p. 309. 



Sy/Kinytncs. Cistus wi.uifb'.ius Lin. Sp., 741., but not of Bieb. Fl. Taur. Cauc., Barrel. Icon, rar., 

 521. t. 441. 



Engraving. Barrel. Icon, rar., 521. t. 441. 



Spec. Char., Sfc. Suffruticose, procumbent. Leaves without stipules, stalked, ovate-cordate, or ovatp, 

 acutish ; upper surface green, pilose, under surface hoary. Racemes solitary, simple, few-flowered, 

 terminal. (Don's Mill., i. p. 309.) Found wild in the south of France, and in Spain and Italy ; and 

 introduced in 1817- It is a trailing plant, seldom exceeding 1 ft. in height, and producing its yellow 

 flowers in June and July. 



. 45. H. CRASSIFO V LIUM Pers. The thick-leaved Helianthemum, or Sun 



Rose. 



Identification. Pers. Ench., 2. p. 77. ; Don's Mill., 1. p. 309. 



Synonymes. Cistus .'glaucus Desf. All., 1. p. 418., but not of Cav. ; H. Se"xte Lag. in Litt. 



Spec. Char., $c. Stem suffruticose, erect, rather glabrous. Leaves somewhat fleshy, on short foot- 

 stalks ; lower leaves ovate, acute, without stipules ; upper ones oblong-linear, stipulate. Raceme* 

 short, rather umbellate. Calyxes pilose at the base. (Don's Mill., i. p. SOP.) Found wild in Bar- 

 bary and Spain, and introduced into England in 1818. It grows to 1 ft. in height, and produces its 

 yellow flowers from May to July. It was called H. Sexte, on account of its being found in V*. 

 lentia, where it is called sexte by the common people. 



n. 46. H. PANICULA'TUM Dunal. The panicled-flowcred Helianthemum, 



or Sun Rose. 



Identification. Dunal. ined., and Dec. Prod., 1. p. 278. 



Synonymes. Cistus narif61ius Herb. Thib. ; Cistus nummulaTius var. Lag. in Litt. ; H. sp. nova 

 Schouw y in Litt. 



Spec. Char., S;c. Suffruticose, procumbent. Branches ascendent and erect; floriferous branches long ; 

 upper part stipulate. Leaves stalked, ovate, bluntish, rarely roundish ; upper surface green, under 

 surface hoary. Racemes opposite and ternary ; panicled. (Don's Mill., i. p. 309.) A native of the 

 mountains of Spain and Sicily, and introduced here in 1826. It is a procumbent plant, with very 

 small flowers of a yellow colour, which are produced in abundance from June to August. 



vii. Euhelianthcmum Dec. Prod., i. p. 278. 



Derivation. From eus, genuine, helios, the sun, and anthemon, a flower; that is to say, genuine spe- 

 cies of helianthemum. 



Sect. Char. Calyx of 5 sepals, rather twisted at the top before expansion ; 



