CHAP. XI. 



CISTA^CEiE. HELIA'nTHEMUM. 



331- 



Engraving. Swt. Cist, t. 96. 



S2)ec. Char., cfc. Much branched, erect. Branches blackish grey, hairy, to- 

 mentose at the apex. Leaves almost sessile, obtuse, keeled, tapering to the 

 base, obscurely greyish, tomentose. Flowers terminal, panicled. Pedicels 

 1 — 3-flowered, very short. Calyx of 3 sepals, very hairy. Petals cuneated, 

 distinct. (JDojt's Mill., i. p. 302.) A sulfruticose bush, seldom growing higher 

 than 2 ft. ; found in the west of France, near Bom-deaux, and introduced into 

 England in 1800. The leaves are small, nearly sessile, very glaucous. The 

 petals are of a bright yellow; and the plant flowers from June to August, or 

 later. It is commonly kept in a green-house or pit, in pots; but it will 

 stand in the open air, if planted near a wall or fence, protected during 

 severe weather by mats. Plants of it were in the Chelsea Botanic Garden 

 in 1828. 



a. 7, H. scABRo'suM Pers. The rough Helianthemum, or Sun Rose. 



Identification. Pers. Ench., 2. p. 76. ; Brot. Fl. Lus., 2. p. 265. ; Don's Mill., i. p. 302. 

 Synonyme. Cfstus scabrbsus Ait. Hort. Kew., 2. p. 236. 

 Engravings. Swt. Cist., t. 81.; and our fig. 68.^ 



S2:)ec. Char., ^a. Erectish. Branches pilosely to- 

 mentose, scabrous, canescent. Leaves sessile, 

 tapering to the base, oblong-ovate, acutish, rough- 

 ish, 3-nerved, with waved revolute margins; 

 upper surface green ; under surface clothed with 

 grey tonientum. Peduncles terminal, 1 — 2-flow- 

 ered, shorter than the leaves. Calyx 3-sepaled, 

 hairy. Petals distinct. (Don's Mill, i. p. 302.) 

 A shrub, from the north of Portugal, growing to 

 the height of 3 ft. ; cultivated in British gardens 

 since 1775 ; and producing its fine yellow flowers 

 from June to August. It forms a handsome little 

 bush, and requires a .sheltered situation. Plants 

 of it were in the Bristol Nursery in 1827. 



tt 8. H. ALGARVE^NSE Dun. The Algarve Helianthemum, or Sun Rose. 



Identification. Dun. ined. ; Dec. Prod., 1. p. 268. ; Swt. Cist., t. 40. ; Don's Mill., 1. p. 302. 

 Synonymes. Cistus algarv^nsis Bot. Mag., t. 627. ; H. algarvense Tourn. Inst, 2o0. ? 

 Engraving. Swt. Cist., t. 40. 



Spec. Char., 8[c. Stem branched. Leaves sessile, ovate-lanceolate, obtuse ; 

 hoary on the under surface; upper surface green, pilose. Peduncles some- 

 what panicled, pilose. Calyx 3-sepaled, acute, hairy. {Don's Mill., i, p. 

 302.) A shrub 3 ft. high, found in Portugal, in the Algarves ; mtroduced 

 into England in 1800; and producing its fine deep-yellow flowers from 

 June to August. The petals are crenated, with a dark base, similar m 

 colour to those of CaUiopsis bicolor. According to Sweet, this species is 

 neai-ly allied to H. ocymoides. It is rather tender, and requires protection 

 dm-ing winter. Plants of it, at 1*. 6f/. each, may be obtained m all the 

 London nurseries. 

 * 9. H. FORMo'suM Dun. The beautiful Helianthemum, or Sun Rose. 



Identiflcation. Dunal. ined. Dec. Prod., 1. p. 268. ; Don's Mill., 1. p. 302. 

 Synonyme. Cistus formbsus Bot. Mag., t. 264. 



Spec. Char., tfc. Erect. Branches tomentosely villous, canescent. Leaves 

 on short footstalks, obovate-lanceolate, tomentosely villous, younger ones 

 hoary. Peduncles and calyxes villous. Calyx 3-sepaled. (Don's Mill., 

 i. p. 302.) A shrub growing to the height of 4 ft., introduced in 1780, and 

 producing its fine large flowers, with yellow dark-spotted petals, from May 

 to July. The stem is erect and much branched, the leaves lanceolate and 

 S-nerved, and the flowers the largest of the genus. It is a most desirable 

 plant to keep in pots, and turn out into borders in the spring ; or, by keep- 

 ing it ao-ainst a wall and protecting it with mats, it will produce a fine show 



