CHAP. XI. CISTA‘CER, HELIA’NTHEMUM. 343 
# 54, H. parBa‘tum Pers. The bearded-racemed Helianthemum, or Sun-Rose. 
Identification. Pers. Ench., 2. p. 79.; Swt. Cist., t. 73.; Don’s Mill, 1. p. 311. 
yme. Cistus barbatus Lam. Dict., 2. p. 24. 
Engraving. Swt. Cist., t. 73. 
Spec. Char.,§c. Stem suffruticose, erect, much branched. Branches: clothed 
with fascicled hairs. Leaves hairy, green on both surfaces; lower ones 
roundish-ovate, upper ones elliptical. Stipules oblong, ciliated, hairy, longer 
. than the footstalks of the leaves. Racemes long, hairy, bearded, many-flow- 
ered. Calyxes warted, hairy. Petals crenulated, imbricate at the base. 
(Don's Mill. i. p. 311.) A native of the south of Europe, producing its 
yellow flowers in June and July. It is an upright-growing shrub, and was 
introduced in 1820. It is a very distinct species, a free grower, and requires 
no protection. Plants were in the Chelsea Botanic Garden in 1828. 
2.55 H. tepropuy’Lttum Dunai. The slender-leaved Helianthemum, or Sun 
Rose. 
Identification. Dunal. ined., Dec. Prod., 1. p. 279. ; Don’s Mill., 1. p. 311. 
Synonymes, Cistus angustifolius Lag. ; C. steechadifolius Hort. 
Engraving. Swt. Cist., t. 50. 
Spec. Char., §c. Stem suffruticose, woody, rather procumbent, branched. 
Branches ascendent, rather tomentose, greyish. Leaves narrow, oblong-linear, 
tapering into the short footstalks, with revolute margins ; under surface co- 
vered with short cinereous tomentum; upper surface smoothish, green. 
Stipules awl-shaped, pilose, scarcely longer than the footstalks. Racemes 
long. Calyxes covered with long hairs. (Don’s Mill., i. p. 311.) A trailing 
plant, from Spain, in 1818, producing yellow flowers in June and July. It 
is a vigorous-growing plant, very distinct in its appearance, and very hardy. 
The petals of the flowers are large, and of a fine dark yellow. Plants 
were in the Chelsea Botanic Garden in 1826. 
# 56. H. acumina‘tum Pers. The acuminated Helianthemum, or Sux 
Rose. 
Identification. Pers. Ench., 2. p. 79.; Don’s Mill., 1. p. 311. 
Synonymes. Cistus serpyllifolius Badlb. ined.; Cistus acuminatus Vv. Fragm., 13. t. 14 f. 1. 
Spec. Char., hc. Branches erect, pilose at the base and at the apex, middle naked. Leaves on long foot- 
stalks, oblong, with revolute margins, green on both surfaces, pilose; under surface rather tomen- 
tose. Stipules smoothish, linear, longer than the footstalks of the leaves. Racemes rather hairy, 
few-flowered, loose. Calyxes smooth, shining, transparent. (Don’s Miil., i. p. 311.) A native of 
Nice, and cultivated in British gardens in 1820: it grows to 1 ft. in height, and produces its yel- 
low flowers in June and July. 
2 57. H. serpyLuiro‘Lium Mill. The Wild-Thyme-leaved Helianthemum, 
or Sun Rose. : 
Identification. Mill. Dict, No. 8.; Swt. Cist., t. 60.; Don’s Mill. 1. p. 311. 
ye See Cistus serpyllifdlius Lin. Sp., 743. 
ngraving. Swt, Cist., t. 60. 
Spec, Char., §c. Stem suffruticose. Branches ascendent, glabrous at the base, 
and pilose at the apex. Leaves oblong-elliptical, with revolute margins ; un- 
der surface hoary-tomentose; upper surface intensely green, shining, at first 
rather pilose, afterwards almost smooth. Stipules and bracteas green, 
ciliated. Calyxes canescent, with inconspicuous down, and with the nerves 
sparingly pilose. (Don’s Mill.,i. p.311.) A trailing shrub, with large 
yellow flowers, the petals of which are distinct. It is found on the Alps of 
Styria and Austria, as well as on the mountains of Spain. It was intro- 
duced into our gardens in 1731, and continues in flower from May to Sep- 
tember. It was found wild in Somersetshire, by Mr. Sweet and some 
others, in 1826, in which year there were plants of it in Mr. Colvill’s Nur-. 
sery, Chelsea. 
2 58. H. vutea‘re Gert. The common Helianthemum, or Sun Rose. 
Identification. Gert. Fruct., 1. p. 371. t.76.; Don’s Mill., 1. p. 311. 
Synonyme. Cistus Helianthemum Lin. Sp., 1. p. 744., Fl. Dan., t. 101., Srith's Engl, Bot., 1321. 
Curt. Fi. Lond., fase. 5. t. 36. are , gt, Bot., 1321., 
