330 



ARBORETUM AND FRUTlCETUM. 



PART 111. 



Varieties. 



tt. H. u. 2 erectum Dec. (Swt. Cist., 5.), Cfstus umbell^tus Lam., C'lstus 



verticillatus Brot., has the stem erect, and the leaves on the under 



surface clothed with greenish tonientum. 

 «L H. u. 3 subdcdmihens Dec, Cistus umbeUatus var. a Lam., has the stem 



somewhat decumbent. Leaves somewhat ciliated, and clothed with' 



white tomentura on the under surface. 



tt. 3. H. OCYMoi^DES Pers. The Basil-like Helianthemum, or Sun Rose. 

 Identification. Pers. Syn., 2. p. 76. ; Don's Mill., 1. p. 302. 



Synonymes. Cistus ocjmOides Lam. Diet., 2. p. 18. ; Cistus iampsucifblius Cav. Icon., 1. p. 65. 



t. ye. 



Engraving. Clus. Hist., 1. p. 72. ic. 



Varieties. Two are mentioned by De CandoUe ; one of them with the peduncles glabrous, and the 

 other -with the branches and peduncles rather hairy. 



Spec. Char., Spc. Erect, branched. Branches hoary. Cauline leaves obovate, 

 or ovate-oblong, 3-nerved, almost sessile, green ; those of the branches are 



^ stalked, and keeled on the back, reflexed at the top, hoary on both surfaces. 

 Peduncles long, branched, paniculate. Pedicels opposite, somewhat um- 

 bellate. Calyx of 3 much-pointed sepals, {Don's MilL, i. p. 302.) A shrub 

 growing to the height of 3 ft., a native of Spain and Portugal ; but when 

 introduced into England is uncertain. According to Sweet, this species is 

 very often confused in the collections with H. algarvense, though it is very 

 different. It is a very handsome undershrub, and, being rather tender, re- 

 quires the protection of a vi^all, or a covering of mats dui'ing severe frosty 

 weather. 



B. Stt/le ahnest none. Stigma large. 

 t!. 4. H. ^LYSsoi^'DES Vent. The Alyssum-like Helianthemum, or Szin Rose. 



Identification. Vent. Choix., t. 20. ; Lam. Diet., 2. p. 20. ; Dec. Fl. Fr., 4. p. 818. : Don's Mill., i. 

 p. 302. 



Synonymes. Ci'stus nlyssS'ides a. Lam. Diet, 2. p. 20., Dee. Fl. Fr., 4. p. 818., Dint's MiU, 1. p. 302. 

 Engraving. Vent. Choix., t. 20. 



Spec. Char., Sjc. Erect, much branched, diffuse, spreading. Branches hoary, tomentosely hairy at 

 the top. Leaves sessile, tapering towards the base, oblong-ovate, bluntish, covered with short 

 hairs ; younger ones rather hoary, adult ones green. Peduncles terminal, solitary, or umbellate, 

 1— 2-flowered, longer than the leaves. Calyx 3-sepa!ed, acuminated, hairy. {Don's Mil/., i. p. 302.) 

 •A shrub, native of Spain and the west of France, growing to the height of 3 ft., and producing its 

 yellow flowers from June to August. It is remarked of the flower-buds, that they are of an in- 

 tense purple colour at the apex. It does not appear to be in cultivation in British gardens. 



tt. 5. H. RUGo'^sUM Dun. The wrinkled-leaved Helianthemum, or Sun Rose, 



Identification. Dunal. ined. Dec. Prod., 1, p. 26S. ; Swt Cist., t. 65. ; Don's Mill., 1. p- 302. 

 Engraving. Swt. Cist, t 65. 



Spec. Char., Src. Erect. Branches rather hairy, clothed with leprous tomen- 

 tura, scabrous, of a brow^nish grey colour. Leaves sessile, tapering into 

 the footstalks at the base, obovate-oblong, bluntish, rather oblique, with the 

 margins somewhat denticulated, and a little curled, tomentose on both 

 siu-faces, wrinkled, under surface hoary. Peduncles terminal, axillary, or 

 umbellate, 1 — 3-flowered, hairy, shorter than the leaves. (Don's Mill., i. 

 p. 302.) A shrub 3 ft. high, a native of Spain, introduced in 1800, and 

 producing its fine yellow flowers from June to August. Its stem is shrubby, 

 erect, or a little flexuose; the branches spreading, more or less hairy; the 

 young shoots reddish; and the flowers terminal, with broadly ovate petals of 

 a golden yellow, each with a large dark spot near the base. It is dis- 

 tinguished from all other sorts by the stiflf bristle-like purple hairs of its 

 calyx. It is rather tender, but it will amply repay protection, either against 

 a wall or in a pit. Plants were in the Bristol Nursery in 1827. 



«. 6. H. microphy'llum Stvt. The small-leaved Helianthemum, or Sun Rose. 



Identification. Swt. Cist., t 96. ; Don's Mill., 1. p. 302. 



Synmymes. H. rugbsum /S microph<!lum Dec. Prod., 1. p. 268. : H. alyssoides raicrophf Uuia 

 Dec. Fl. Fr. Suppl., p. 622. 



