34-6 ARBORETUM AND FRUTICETUM. PART III. 



Varieties. DC Candolle mentions three forms of this species : 77. h. hce'ticwn, 

 H. h. aureum, and H. h. teretifolium. 

 9^ 68. H. LAGA'SCJS; Dunal. La Gasca's Helianthemum, or Sun Rose. 



Indent ification. Dunal. ined., and Dec. Prod., 1. p. 281. ; Don's Mill., 1. p. 312. 



Synonyme. H. hirtum var. Lag. in Litt. 



Spec. Char., $c. Branches ascendent, tomentosely hairy, hoary. Leaves linear, obtuse, with very 

 revolute margins, almost terete, rather hairy, greenish. Stipules flat, scarcely pilose, twice the 

 length of the footstalks of the leaves. Pedicels hispid, whitish. Calyxes shining, furrowed. 

 Nerves ciliated with white hairs. (Don's Mill., i. p. 312.) A native of Spain, introduced into Eng- 

 land in 1826, and so like the foregoing species as to be often considered a variety of it. 



B. Petals white, rose-coloured, red, pale sulphur-coloured, or variegated with 



these Colours. 



<u C9. H. FIOLA'CEUM Pers. The Violet-coloured-cff/j/.r<?d Helianthemum, or 



Sun Rose. 



Identification. Pers. Syn., 2. p. 78. ; Don's Mill., 1. p. 312. 



Synonyme. Cfstus yiolaceus Cav. Icon., 2. p. 38.i 



Engraving. Cav. Icon., 2. t 147- 



Spec. Char., SfC. Stem erect or ascendent, much branched. Branches opposite ; branchlets slender, 

 tomentosely hairy, hoary. Leaves small, almost linear, obtuse, with revolute margins, somewhat 

 tomentose on both surfaces ; under surface canescent. Stipules minute, pilose. Racemes few- 

 flowered, loose. Calyxes smooth, violaceous, nervedly furrowed. (Don's Mill., i. p. 312.) A native 

 of Spain, and in cultivation since 1826. The flowers are white, slightly tinged with violet, and 

 they appear in June and July. 



it. 70. H. RACEMO V SUM Dunal. The racemose-^owem/ Helianthemum, or 



Sun Rose. 



Identification. Dunal. ined., and Dec. Prod., I. p. 281. ; Don's Mill., 1. p. 312. 



Vahl. 



Cistus racembsus Lin. Mant., 76. ?, Lam. Diet., 2. p. 25., Vahl. Symb., 1. p. 39., Wilhi. 

 Sp., 2. p. 1208. 

 Engraving. Swt. Cist., t. 82. 



Spec. Char., tyc. Stem shrubby, branched. Branches erect, terete, hoary, to- 

 mentose. Leaves on short footstalks, narrow-linear, or linear-lanceolate, 

 with revolute margins; under surface hoary, upper surface greenish, shining. 

 Stipules awl-shaped, longer than the footstalks of the leaves. Pedicels 

 hoary. Calyxes nervously furrowed, brownish violet. (Don's Mill., i. p. 

 312.) A native of Spain, Barbary, and Teneritfe, and in cultivation in the 

 Bristol Nursery in 1828. It is a very beautiful species, with large white 

 flowers, having imbricate crenulate petals, and the sepals marked with red 

 or violet. It is readily distinguished, Sweet observes, from all the others 

 of its section, by its upright growth, glossy leaves, and the red veins of its 

 sepals. Its flowers are produced nearly the whole summer, and it re- 

 quires very little protection during the winter. 



u. 71. H. FARINO^SUM Swt. The mealy-feared Helianthemum, or Sun Rose. 



Identification. Swt. Cist., p. 18. ; Don's Mill., 1. p. 312. 

 Synonyme. H. raccmosum /3 farindsum Dec. Prod., 1. p. 281. 



Spec. Char., &c. Stem shrubby, erect, branched, tomentosely hoary. Leaves on short footstalks, 

 linear, or lanceolate-linear, with revolute margins, hoary and powdered on both surfaces. Stipules 

 awl-shaped, longer than the footstalks of the leaves. Calyx powdery, as well as beset with 

 very short hairs. (Don's Mill., i. p. 312.) A native of Spain, with white flowers in June and July. 

 It is said to have been cultivated in 1820. De Candolle considers it a variety of H. racembsum. 



n. 72. H. STRI'CTUM Pers. The straight-branched Helianthemum, or Stt)i 



Rose. 



Identification. Pers. Ench., 2. p. 79. ; Don's Mill., 1. p. 312. 



Synonyme. Cistus strfctus, Cav. Icon., 3. p. 32. 



Engraving. Cav. Icon., 3. t. 263. f. 2. 



Spec. Char., Sfc. Stem suffYuticose, erect, branched. Branches straight, hoary-tomentose. Leaves 

 almost sessile, very narrow, linear awl-shaped, with revolute margins, canescent. Stipules linear, 

 setaceous. Calyxes pilose, nervously-striated, yellowish, smoothish. (Don's Mill., i. p. 312.) A 

 native of Spain, and in cultivation since 1820, producing white flowers in June and July. 



*~. 73. H. PILO^SUM Pers. The pilose Helianthemum, or Sun 



Identification. Pers. Ench., 2. p. 79. ; Dec. Prod., 1. p. 282. ; Don's Mill , 1. p. 312. 

 Xynanymcs. Cistus pi!6sus Lin. Sp., 744. at,. ? ; Chamaecistus, iv., Clus. Hist., 1. p. 74. 

 Engraving. Swt. Cist., t. 49. 



Varieties. De Candolle has two forms of this species : one with linear leaves, hoary; and the of her 

 with linear leaves, oblong and shining. 



