346 ARBORETUM AND FRUTICETUM. PART IIT. 
Varieties. De Candolle mentions three forms of this species: H. h. be’ticum, 
H.h. aireum, and H, h, teretifolium. 
e. 68. H. Laca’sc# Dunal. La Gasca’s Helianthemum, or Sun Rose. 
Indentification. 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 Miil., 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 Colaurs. 
2. 69. H. vioua‘cEum Pers, The Violet-coloured-calyred Helianthemum, or 
Sun Rose. 
Identification. Pers. Syn., 2. p.'78.; Don’s Mill., 1. p. 312. 
Synonyme. Cistus violaceus Cav. Icon., 2. p, 38.1 
Engraving. Cav. Icon., 2. t. 147. 
Spec. Char.; &c. 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 Miil., 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. 
»«, 70. H. racemo‘sum Dunal. The racemose-flowered Helianthemum, or 
Sun Rose. 
Identification. Dunal. ined., and Dec. Prod., 1. p. 281. ; Don’s Mill., 1. p. 312. 
Synonymes. Cistus racemdsus Lin. Mant.,76.?, Lam. Dict., 2. p. 25., Vahl. Symb., 1. p. 39., Willd. 
Sp., 2. p. 1208. 
Engraving. Swt. Cist., t. 82. 
Spec. Char., §c. 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 Teneriffe, 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. 
» 71. H. rarino‘sum Swt, The mealy-leaved Helianthemum, or Sun Rose. 
Identification. Swt. Cist., p. 18.; Don’s Mill., 1. p. 312. 
Synonyme. H. racemdsum £ 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. racemdsum. 
« 72. H. srri’crum Pers. The straight-branched Helianthemum, or Sun 
Rose. 
Identification. Pers. Ench., 2. p. 79.; Don’s Mill., 1. p. 312. 
Synonyme. Cistus strictus, Cav. Icon., 3. p. 32. 
Engraving. Cay. Icon., 3. t. 263. f. 2. 
Spec. Char., §c. Stem suffruticose, 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 J uly. : 
2.73. H. ptto‘sum Pers. The pilose Helianthemum, or Sun Rose. 
Identification. Pers. Ench., 2. p. '79.; Dec. Prod., 1. p. 282. ; Don’s Mill, 1. p. 312. 
Synonymes. Cistus pildsus Lin. Sp., 744. «.?; Chamecistus, iv., Clus, Hist., 1. p. 74. 
mgraving. Swt. Cist., t. 49. 
Varieties. De Candolle has two forms of this species: one with linear leaves, hoary ; and the other 
with linear leaves, oblong and shining. 
