CHAP. XI. CISTA‘CEH. HELIA'NTHEMUM. 339 
Calyx somewhat globose-ovate. (Don’s Mill.,i. p.308.) Found in the 
Alps of France, Switzerland, and Austria ; introduced in 1816; andyin our 
gardens, a low trailing shrub, producing yellow flowers from June to 
August. It is nearly related to H. alpéstre, but has narrower leaves and 
smaller flowers, and is of weaker growth. Plants were in the Chelsea 
Botanic Garden in 1828, 
2. 37. H. putcue’Lttum Swt. The neat Helianthemum, or Sun Rose. 
Tientification. Swt. Cist., t. 74. ; Don’s Mill., 1. p. 908. 
Engraving, Sut Cut,t74 
Spec. Char., §c. Stem suffruticose, procumbent, branched. Branches clothed 
with hoary tomentum. Leaves roundish or ovate, obtuse, upper surface 
green, beset with hispid hairs; under surface clothed with hoary tomentum, 
with the margins a little revolute. Racemes simple. Calyxes pilose, 
hoary. Petals imbricate. (Don’s Mill., i. p.308.) A native of Germany, 
introduced in 1820, and producing its yellow flowers from June to August. 
A neat little prostrate shrub, hardy, and of the easiest culture. Plants were 
in the Roehampton Nursery in 1828. 
2. 38. H. atpe’stre Dunal. The Alpine Helianthemum, or Sun Rose. 
Identification. Dunal ined., and Dec. Prod., 1. p. 276.; Don’s Mill., 1. p. 308. 
Synonymes. Cistus alpéstris Crantz Austr., p. 103. t. 6. f. 1., Wahl. Helv., p. 103.; Cistus celandicus 
Jacq. Austr., t. 399. 
Engravings. Crantz Austr., t. 103. t. 6. f. 1.; Jacq. Austr. t. 399. 
Varieties. De Candolle records H. a. glabratum, H. a. elongatum, and H. a. canéscens, 
Spec. Char., §c. Stem suffruticose, procumbent, branched. Branches pilosely 
hairy. Leaves greenish on both surfaces, oblong-elliptical, rather glabrous, 
or with hairs in fascicles, stalked ; upper leaves almost sessile. Pedicels and 
calyxes pilosely hairy. Hairs cinereous. (Don’s Mill., i. p. 308.) A native of 
Germany, Switzerland, France, and Italy, on rocks. It was introduced into 
England in 1818, and produces its yellow flowers, large for the size of the 
leaves, in July and August. It is an elegant little plant, and quite hardy. 
It was in Mr. Colvill’s Nursery, Chelsea, in 1824, 
2. 39. H. penicrtya‘tum Thib. The pencilled Helianthemum, or Sun Rose. 
Identification. ‘Thib. ined., and Dec. Prod., 1. p. 277. ; Don’s Mill., 1. p. 309. 
Synonymes. Cistus echidides Lam. Dict., 2. p.21.; Cistus Aanglicus Lin. Mant., 245. ? 
Spec. Char., &c. Suffruticose. Branches procumbent, long, hispid. Leaves green, with the leaves on 
both surfaces hispid, as well as the margins; lower leaves stalked, ovate, smaller; upper ones 
linear-oblong, almost sessile. Racemes simple, and are, as well as the calyxes, hispid. Flowers 
minute. (Don’s Mill., i. p. 309.) A native of France and Spain, and introduced in 1826. It isa 
trailing plant, with the habit of Echinosp¢érmum Lappula. Introduced in 1826, and producing its 
yellow flowers from June to August. 
e. 40. H. opova‘rum Dunal. The obovate-leaved Helianthemum, or Sun 
Rose. 
Identification. Dunal ined., and Dec. Prod., 1. p. 277.; Don’s Mill., 1. p. 309. 
Synonymes. Cistus italicus Lin. Sp., 740. 
Spec. Char., &c. Suffruticose. Branches spreading, somewhat dichotomous, clothed with cinereous 
tomentum towards the apex. Leaves obovate, or oblong-obtuse, green on both surfaces, ciliated, 
pilosely strigose ; lower leaves minute. | Racemes simple, 3-flowered. Bracteas green. Calyxes 
pilose, cinereous. (Don’s Miil., i. p. 309.) Found in Spain, near Aranjuez, where it produces its 
yellow flowers in June and July. It was introduced in 1826; and, in British gardens, is a trailing 
plant, about 1 ft. in height. a 
2. 41. H. rra’ticum Pers. The Italian Helianthemum, or Sun Rose. 
Identification, Pers. Ench, 2. p. 76.; Don’s Mill., 1. p. 309. 
fp conmaneeng Cistus itdlicus Lin. Sp., 740.; Cistus marifdlius Bieb. Fl. Taur. Cauc., 2. p. 8. 
ngraving. Barrel. Icon. rar., 510. t. 366. 
Varieties. De Candolle distinguishes three forms of this species, viz. H. é. strigisum, H. t. candidissé- 
mum, and H. i. dlbidum. 
Spec. Char., §c. Suffruticose. Branches simple, erect, long, pilosely tomentose. Leaves pilosely his- 
id ; hairs strigose, appressed ; lower leaves ovate, smaller ; upper ones lanceolate, oblong or oblong- 
inear. Racemes simple, and are, as well as the calyxes, pilosely hispid, canescent. (Don’s Mil/., i. 
P. 309.) A native of the Mediterranean, on dry hilly surfaces. Introduced in 1799, and producing 
its aa cere Se July to September. It is a glaucous-looking trailing plant, seldom exceed- 
ing in height. 
BB 3 
