CHAP. Xr. riST.\V:E.'E. HELIA'NTHEMUM. 341 



outer sepals usually spreading, much smaller than the inner ones, which 

 are usually 2- or 4-ribbe(l, furrowed, with scarious margins, with the inner 

 surface shining, and with the angles generally pilose. Petals 2, .3, or 4 times 

 longer than the calyx. Stamens numerous. Style bent at the base, but 

 somewhat club-shaped at the apex. Stigma simple. C'apsule covered by 

 the calyx, 3-valved, 1-ceiled, opening at the apex. Seeds few, convex on 

 the outside, and angular on the inside. Subshrubs, with the stems 

 branched from the base ; branches numerous, erect or procumbent, but ge- 

 nerally ascendent. Leaves opposite, on short footstalks ; lower ones 

 smallest, usually with revolute margins, stipulate. Stipules linear-lanceolate. 

 Racemes terminal, secund, simple, curved backwards before flowering; after 

 flowering erect, elongated. Pedicels laterally bracteate at the base, droop- 

 ing before flowering; when in flower erect, after flowering recurved or 

 reflexed. (Don's ATilL, i. p. 310.) Evergreen undershrubs, bushes, and 

 trailers, of the smallest size; natives of Britain, and the southern part of the 

 European continent. Many of the sorts are hybrids originated in British 

 gardens. 



A. Petals tjcllow. 



«- 47, H, lavanduLjEfo'lium Dec. The Lavender-leaved Helianthemum, 



or Sun Rose. 



Identificatim. Dec. Fl. Fr.,4. p. 820. ; Don's Mill., 1. p. 310. 

 Synojiyine. Cistus lavandul£ef6Uus La7n. Did., 2. p. 25. 

 Engraving. Barrel. Icon., t. 288. 



t'arieties. De CandoUe notices H. I. syr'iacum, the Cistus syriacus of Jacquin ; and Pcrsoon records H. 

 I. T/iibaiidi, the Cistus racemfisus of Cavanilles. 



Spec. Char., Sjc. Stem suftruticose, erect, branched. Branches long, terete, canescent. Loaves ob- 

 long-linear, with revolute margins ; under surface tomcntosc, hoary ; younger leaves canescent on 

 both surfaces. Stipules and bracteas linear, acute, ciliated. Racemes 1 — 3-flowered, terminal. 

 Flowers crowded. Caly.xes glaucous. Sepals ciliated, outer ones minute ; these become reflexed 

 after flowering : inner sepals 2-nerved, oblique, acute. {Don's jW//., i. p. 310.) A bush about 1 ft. 

 in height, a native of the south of France, and found also in Barbary, Spain, and Syria, in dry 

 places ; producing its yellow flowers in June and July. It was introdxiced into England in 1739, and, 

 probably, is now lost, or confounded with some other sort 



tt. 48. H. ^TCECiiADiFo^LiUM Peis. The French-Lavender-leaved Helian- 

 themum, or Sun Rose. 



Identification. Pers. Ench, 2 p. 79. Don's Mill., 1. p 310. 

 Synonyme. Cistus itoechadif51ius B7-ot. Fl. Lus., 2. p. 270, 



Spec. Cliar. Sfc. Stem erect. Branches hoary, tomentose. Leaves oblong-linear, bluntish, somewhat 

 tomentose on both surfaces ; under surface hoary, upper surface greenish grey, with revolute mar- 

 gins. Stipules rather villous, linear-lanceolate. Racemes revolute before flowering. Flowers 

 crowded. Calyxes villous. Outer sepals ciliated, green, inner ones acuminated, hoary. (Don'.i Milt., 

 i. p. 310.) A native of Spain and Corsica. An upright bush, introduced in 1816, and producing its 

 yellow flowers in June and July. 



t~ 49. H. CRo'CEUM Pers. The ^affron-co\ov\YcA-flowered Helianthemum, 



or Sun Rose. 



Identification. Pers. Ench., 2. p. 79. ; Don's Mill., 1. p. 310. 



Synonyme. Cistus cr6ceus De^f. Fl. All., 1. p. +22. t. 110. 



Engravings. Swt. Cist., t. 5,3. ; Desf. Fl. Atl., 1. t. 110. 



l^arieties. De CandoUe {Prod., i. p. 279.) records three forms of this species : one with the stipules 

 longer than the footstalks of the leaves ; another, with the stipules setaceous, shorter than the 

 footstalks of the leaves ; and the third with procumbent branches, shorter leaves, and racemes 

 few-flowered. 



Spec. Char., Sfc. Stem shrubby, branched, somewhat procumbent. Branches 

 simple, erect, hoary-tomentose. Leaves rather tomentose; under surface ca- 

 nescent, upper surface glaucous with revolute margins ; lower leaves almost 

 round ; middle ones elliptical, obtuse ; upper ones, lanceolate, acutish. Stipules 

 and bracteas erect, linear, oblong, villous, rather greenish. Calyxes yellowish- 

 glaucous, minutely pubescent. {Don's Mill., \. p. 310.) A procumbent plant, 

 with large dark yellow flowers, found in Spain and Barbary, and, according 

 to Sweet, cultivated in the Chelsea Botanic Garden in 1826, where, growing 

 on rockwork, it covered more than a yard in diameter, and made a grand 

 appearance in June and July, when it was covered with flowers. It is one 

 of the most ornamental species of the genus, anil no collection ought to be 

 without it, if it were only for planting out in borders in the summer season. 



B B 4 



