352 



ARBORETUM AND FRUTlCETUxM. 



PART in. 



distinct at the base. (Don's Mill., i. p. 314.) A hybrid, found in Colvill's 

 Nursery, Chelsea, in 1828. It is nearly related to H. sulphiireuin, but 

 differs from it in habit, and in having a woolly calyx. The leaves are narrow, 

 and undulated in the margins. 



!U 92. H. iJo^sEUM Dec. The 'Rose-coloiir-flowered Helianthenium, or 



Sim Rose. 



Identification. Dec. FI. Fr., 4. p. 822. ; Don's Mill., 1. p. 314. 

 Synonyme. Ci'stus roseus All. Fed., 2. p. 105. t. 45. f. 4., but not of Jacq. 

 Engraving. Swt. Cist., t. 55. 

 Variety. 



)U i/. r. 2 multiplex. {Swt. Cist., 86.) — A very pretty double variety : it is well suited to rock- 

 work, on which it grows vigorously.'and produces large flowers. It is quite hardy, and 

 continues in bloom the whole summer. 



Sjyec. Char., 8fc. Stem snifruticose, rather procumbent, somewhat tomentose. 

 Leaves ovate-lanceolate, tomentose on the under surface, green above, 

 hairy. Stipules lanceolate-Hnear, ciliated. Pedicels and calyxes pilosely 

 hairy. {Don\ Mill., i. p. 314.) A native of the south of Europe, and very 

 nearly allied to H. vulgare. The petals are rose-coloured, and imbricate at 

 the base. It flowers in June and July, and was introduced in 1815. It is 

 a very pretty plant, from the delicate colour of its flowers ; and it is very 

 suitable for rockwork, as it will continue in bloom for several months. It 

 requires protection during frosts. It was cultivated in the Fulham Nursery 

 in 1827. 



!U 93. H. FCE^TIDUM Pers. The fetid Helianthemum, or Sun Rose. 



Identification. Pers. Syn., 2. p. 79. ; Don's Mill., 1. p. 314. 

 Synonyme. Cistus foe tidus Jacq. Icon, rar., 1. p. 98., Misc., 2. p. 341. 



Spec. Char., ^c. Stem suffruticose, procumbent, pilosely hairy. Leaves oblong, green on both sur- 

 ' faces, hairy, roughish. Stipules hairy, linear, longer than the footstalks of the leaves. Pedicels 

 and calyx rather hairy. (Don's Mill., i. p. 314.) A hybrid, resembling H. vulgkre, but differing 

 from it in having white flowers. The whole plant is said to smell like iirybnia. It produces its 

 flowers from May to July, and was in cultivation in 1800. 



!U 94. H. HYSSOPiFo'Liuai Tenore. The Hyssop-leaved Helianthemum, or 



Sun Rose. 



Identification. Tenor, Syn. Fl. Neap., p. 48. ; Don's Mill., 1. p. 314. 



Spec. Char. Stem suffruticose, ascending. Branches hairy-tomentose. 

 Lower leaves oval, upper ones oblong-lanceolate, green on both surfaces, 

 flat, hairy. Calyxes hairy. Petals imbricate. (Don's Mill., i. p. 314.) 

 Varying considerably by culture. 



Yarieties. 



!U i7. h. 1 crocdtum (Swt. CisL, t. 92.) has flowers safl^ron-coloured, with 

 more or less, of a ferrugineous tint, and may represent the species. 

 Plants of it were in the Clapton Nursery in 1828. 

 H.h. 2 ciiprewn (Swt. Cist., t. 58.) has flowers of a reddish copper- 

 colour. Plants of it were in the Fulham Nursery in 1827, 

 !U i7. h. 3 multiplex (Swt. Cist., t. 72., and our 

 Jig. 75.) has double flowers, of a reddish 

 copper-colour. Plants of this variety were 

 in the Fulham Nursery in 1828. 

 Descrijition, Sfc. All the three forms of this species 



are splendid plants ; they are hardy, of luxuriant 



growth, flowering freely, and of the easiest culture, 



either in pots or on banks of light sandy soil, covered 



with flints or stones. The flowers of the copper- 

 coloured variety, and also the leaves, are larger than 



those of the two other kinds. The double-flowered 



variety appears to be of a more upright habit of 



growth, and not quite so robust as the others. Sweet 



says that he is " acquainted with two other very 



distinct varieties ; one with flowers of a lighter 



colour, and the other having double flowers." 



