350 ARBORETUM AND FRUTICETUM- PART 111. 



Spec. Char., $c. Stein suflruticose, .branched. Branches procumbent, densely 

 tonientose. Leaves oblong-linear, with revolute margins, hoary-tomentose 

 on both surfaces. Stipules narrow, linear, obtuse, longer than the petioles, 

 and are, as well as the bractcas, tomentose and ciliated. Petals distinct, 

 crenulated. (Don's Mill., i. p. 313.) A native of England, producing its 

 white flowers, marked with yellow, from May to August. It is found on 

 stony hills near the sea side, particularly on Brent Downs, Somersetshire ; 

 also at Babicome, near Newton Abbot, and on Tor Hill, near Torquay, 

 Devonshire. 



*~ 85. II. MUTA'BILE Pcrs. The changcuble-coloured-flowered Helianthemum, 



or Sun Rose, 



Identification. Swt. Cist., 106. ; Pers. Ench., 2. p. 79. ; Dec. Prod. 1. p. 283.; Don's Mill., 1. p. 313. 

 Synonymc. C'istus mutabilis Jacq. Icon, rar., 1. t. 99., Misc., 2. p. 340. 

 Engravings. Swt. Cist., t. 106. ; Jacq. Icon, rar., 1. t. 99. 



Varieties. There are three forms of this very handsome species; one with white flowers, another 

 with smaller flowers of a rose red, and the third with double rose-coloured flowers. 



Spec. Char., fyc. Stem suffruticose. Branches procumbent, rather tomentose. 

 Leaves flat, ovate-oblong, acutish ; upper surface glabrous, under surface 

 tomentose, pale- cinereous. Stipules rather pilose, generally equal in length 

 with the footstalks of the leaves, or longer. Calyxes striated, smootlnsh. 

 Petals imbricate. (Don's Mill., i. p. 313.) A native of Spain, and in culti- 

 vation in British gardens in 1829. The flowers are produced from June 

 to August, in great abundance; and seeds are ripened afterwards in fine 

 seasons. The plants are quite hardy. They were cultivated for sale in 

 the Clapton Nursery in 1829. 



t^ 86. H. VARIEGA V TUM Swt. The variegated Helianthemum, or Sun Rose. 



Identification. Swt. Cist., t. 38. ; Don's Mill., 1. p. 314. 

 Engraving. Swt. Cist, t. 38. 



Spec. Char., $c. Stem suffruticose, procumbent. Branches tomentose, rather 

 hoar} r , diffusely procumbent. Leaves lanceolate, acute, flattish ; under 

 surface hoary-tomentose, upper surface green, rather scabrous. Stipules 

 linear, ciliated, longer than the petioles. Calyxes covered with short vio- 

 laceous toinentum. Petals imbricate, undulated. (Don's Mill., i. p. 314.) 

 A hybrid between H. rhodanthum and H. lineare, found by Mr. Sweet in 

 the Chelsea Botanic Garden in 1827. " When in full bloom, it makes a 

 very pleasing appearance, from the diversity of colours in its flowers ; some 

 being nearly all red, others variegated with dark and light red and white, 

 and some altogether white : it also continues to bloom, if the weather prove 

 favourable, from May to November." It is as hardy as the indigenous 

 species. 



. 87. H. VERSI'COLOR Swt. The various-coloured Helianthemum, or 



Sun Rose. 



Identification. Swt Cist, t. 26. ; Barrel Icon., 440. ; Don's Mill, 1. p. 314. 

 Engravings. Barrel. Icon., 440. ; Swt. Cist, t. 26. 



Spec. Char., $c. Stem shrubby, erect. Branches ascending, rather hoary 

 from stellate down. Leaves oblong, flat, or concave above ; under surface 

 hoary-tomentose, upper surface green, glabrous. Stipules oblong-linear, 

 ciliated, bristly at the top, somewhat longer than the leaves. Calyxes 

 covered with short toinentum. Petals imbricate. (Don's Mill., i. p. 314.) 

 A native of the south of Europe, and readily distinguished from H. varie- 

 gatum by its upright habit of growth, and its lanceolate and acutely pointed 

 leaves. The flowers are very variable in colour, scarcely two on the plant 

 being alike ; some are of a bright red, others nearly yellow, some copper- 

 coloured, and others with a mixture of all these colours, and of the different 

 shades between them ; so that the plant, when in flower, has a curious va- 

 riegated appearance. (Sweet.) 



