CHAP. XI. 



CrSTA^CEiE. HELIA'NTHEMUM. 



353 



fcv 95. H. cu^PREUM Stvt. The co^^eT-cohur-flowered Helianthemum, or 



Sun Rose. 



Identification. Swt. Cist., t. 66. ; Don's Mill., 1. p. 314. 

 Engraving. Swt. Cist, t. 66. 



Spec. Char,, Sfc, Stem sufFruticose, procumbent. Branches ascending, rather 

 tomentose; adult ones glab rous. Leaves oblong-lanceolate, channeled; upper 

 surface green, hairy ; under surface hoary-tomentose. Stipules lanceolate, 

 acute, ciliated, bristly at the apex, twice as long as the footstalks of the 

 leaves. Calyxes tomentosely pilose. Petals imbricated. {Dons Mill, i. 

 p. 314.) A hybrid, found by Mr. Sweet in the Hammersmith Nursery in 

 1827. The petals are of a dark copper colour, with a darker mark at the 

 base of each. The flowers appear from May to August, and the plant re- 

 quires very little protection. 



a. 96, H. VENu'sTUBi Swt. The handsome Helianthemum, or Sun Hose. 



Identification. Swt. Cist., t. 10. ; Don's Mill., 1. p. 314. 

 Engraving. Swt. Cist., t 10. 



Spec. Char., ^c. Stem sufFruticose, ascending, branched. Branches glabrous, 

 warted, somewhat tomentose at the apex. Leaves oblong-lanceolate, acute, 

 flat, or hardly revolute in the margins, but denticulately scabrous; under 

 surface hoary-tomentose, upper surface green, shining. Stipules lanceolate, 

 hairy, ciliated, twice as long as the footstalks of the leaves. Inner sepals 

 membranous, with hairy warted nerves. Petals imbricated. (I)o7i's Mill., 

 1. p. 314.) The native country of this beautiful plant is not known, though 

 it is now very common in collections about London. It is very suitable for 

 rockwork, as it is quite hardy, and continues in flower during the whole 

 summer. In some collections. Sweet tells us, it is considered only as a 

 variety of H. vulgare ; but he says that it is more nearly allied to H. 

 rhodanthum ; from which, however, it may be easily distinguished " by its 

 warted stalks and calyxes, and its smooth shining stems." It was in Col- 

 vill's Nursery in 1825. 



97. H. Mi'ller/ Swt. Miller's Helianthemum, or Sun Rose. 



Identification. Swt. Cist, t 101. ; Don's Mill., 1. p. 315 

 Engraving. Swt. Cist., 1. 101. 



Spec. Char. Stem suffi-uticose, procumbent. Branches hairy-tomentose. 

 Leaves oblong, bluntish, flat, green on both surfaces, hairy. Stipules falcate, 

 longer than the petioles. Calyxes hairy. Petals imbricate. (Don's Mill., i. 

 p. 3 15.) A hybrid, with saffron-coloured flowers, with a dark mark at the base 

 of each petal. It is nearly related to H. Ayssopifolium, from which it differs 

 m Its dull green and rough leaves, which are much more hairy. It is also 

 related to H. nummularium, and may, probably, be a hybrid between the two. 

 It IS one of the most ornamental sorts of the section to which it belongs, 

 and IS so hardy as to require no protection in winter. Plants of it were in 

 the Bristol Nursery in 1829. 



a- 98. H. majoranjefo'livu Dec. The Marjoram-leaved Helianthemum, or 



Sun Rose. 



Identification. Don's Mill, 1. p. 315. 



Synonymes. H. m. var. « Dec. Ft. Fr., 6. p. 225. ; Cistus ?«a/om««fblius Gouan. Herb , p 26. ' 



SuftVuticose, erect, much branched. Branches hairy-tomentose. Leaves stalked, ovate, 

 oblong, acutish, with revolute margins ; under surface hoary-tomentose, upper surface sreJnish 

 ^airs'°fi)in;j^°l''n^-^",'?;- f^^}.'^^'^^\^-P^d,}^ri.tly. talyxes den'selV cLther^vitrwhife 



99. H. HiRsuVuM Dec. The hairy Helianthemum, or Sun Rose. 



Identification. Dec. Prod. 1. p. 284. ; Don's Mill 1 p 315 

 Sgnonyme. Cistus hirs&tus Lapeyr. Alrr., 303., but not of Lam. 



Spec. Char. Suffruticose, stipulate, hairy. Leaves stalked under surface hoary Lower leavos 

 n 3I5f'A'n^,Hvrn1-%h?''° '"'"^ ^^^"""1 racemes^' [Bon'Tim ' 



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