CISTINE^E. II. HELIANTHEMUM. 



311 



97 H. GLAU'CUM (Pers. ench. 2. p. 78.) stem suffruticose, 

 branched ; branches ascendant, hoary-tomentose, hispid at the 

 top ; leaves ciliated on their margins, scarcely revolute, tomen- 

 tose on both surfaces, under surface hoary, upper surface green- 

 ish-glaucous ; lower leaves round, the rest elliptic, or lanceolate- 

 oblong ; stipulas and bracteas pubescent, green ; pedicels and 

 calyxes beset with white hairs. Tj . H. Native of Spain and 

 Italy. Sweet, cist. t. 111. Cistus glaucus, Cav. icon. 3. p. 31. 

 t. 261. but not of Desf. Petals sulphur-coloured. 



Var. a, acutiusculum (D. C. prod. 1. p. 279.) upper leaves 

 oblong, rather acuminated, upper surface glaucescent ; calyxes 

 clothed with soft hairs. 



Var. ft, obtusiusculum, upper leaves oblong-elliptical, bluntish, 

 upper surface roughish, green ; calyxes somewhat hispid. 



Glaucous Sun- Rose. Fl. June, August. Clt. 1815. Shrub 

 1 foot. 



98 H. TOMENTO'SUM (Dunal, ined. and B.C. prod. 1. p. 279.) 

 stem suffruticose, branched ; branches elongated, ascendant, 

 somewhat canescent ; leaves lanceolate-oblong, usually with re- 

 volute margins, under surface hoary-tomentose, upper surface 

 smoothish, green ; calyxes furrowed, with elevated pilose nerves. 

 >j . H. Native of Spain and France : in Britain, on the moun- 

 tains of Scotland. Smith, eng. bot. 2208. Scop. earn. t. 24 ? 

 Pedicels hoary, pilosely-tomentose. Bracteas smooth. Calyx 

 violaceous. Petals yellow, imbricate. Stipulas a little fringed. 



Tomentose Sun-Rose. Fl. July. Scotland. Shrub trailing. 



99 H. BARBA'TUM (Pers. ench. 2. p. 79. Sweet, cist. t. 73.) 

 stem suffruticose, erect, much branched ; branches clothed 

 with fascicled hairs ; leaves hairy, green on both surfaces ; lower 

 ones roundish-ovate, upper ones elliptical ; stipulas oblong, cili- 

 ated, hairy, longer than the footstalks of the leaves ; racemes 

 long, hairy, bearded, many-flowered ; calyxes warted, hairy ; 

 petals crenulated, imbricate at the base. T? . H. Native of the 

 south of Europe. Cistus barbatus, Lam. diet. 2. p. 24. Petals 

 yellow. 



Bearded-racemed Sun-Rose. Fl. June, July. Clt. 1820. 

 Shrub 1 foot. 



100 H. LEPTOPHY'LLUM (Dunal, ined. and D. C. prod. 1. p. 

 279.) stem suffruticose, woody, rather procumbent, branched ; 

 branches ascendant, rather tomentose, greyish ; leaves narrow, 

 oblong-linear, tapering into the short footstalks, with revolute 

 margins, under surface covered with short cinereous tomentum, 

 upper surface smoothish, green ; stipulas awl-shaped, pilose, 

 scarcely longer than the footstalks ; racemes long ; calyxes co- 

 vered with long hairs. Tj . H. Native of Spain. Sweet, cist, 

 t. 20. Cistus angustifdlius, Lag. in litt. but not of Jacq. 

 Cistus stcechadifolius, Hortul. Calyxes furrowed. Petals yellow, 

 imbricate. Bracteas minute. Racemes loose. 



Slender-leaved Sun-Rose. Fl. June, July. Clt. 1818. Shrub 

 procumbent. 



101 H. ACUMINA'TUM (Pers. ench. 2. p. 79.) branches erect, 

 pilose at the base and the apex, middle naked ; leaves on long 

 footstalks, oblong, with revolute margins, green on both surfaces, 

 pilose, under surface rather tomentose ; stipulas smoothish, linear, 

 longer than the footstalks of the leaves ; racemes rather hairy, 

 few-flowered, loose ; calyxes smooth, shining, transparent. Tj . 

 H. Native of the fields about Nice. Cistus serpyllifolius, 

 Balb. ined. Cistus acuminatus, Viv. fragmi 13. t. 14. f. 1. is 

 truly distinct from this plant, and is evidently a variety of 

 H. guttatum, or an allied species. 



Acuminate Sun-Rose. Fl. June, July. Clt. 1820. Shrub 

 1 foot. 



102 H. SERPYLLIFO'LIUM (Mill. diet. no. 8.) stem suffruticose ; 

 branches ascendant, glabrous at the base and pilose at the apex ; 

 leaves oblong-elliptical, with rather revolute margins, under- 

 surface hoary-tomentose, upper surface intensely green, shining, 



at first rather pilose, afterwards almost smooth ; stipulas and 

 bracteas green, ciliated ; calyxes canescent, with inconspicuous 

 down, and with the nerves sparingly pilose. Tj . H. Native 

 of the alps of Styria and Austria, as well as on the mountains 

 of Spain. Sweet, cist. t. 60. Cistus serpyllifolius, Lin. spec. 

 743. As in the preceding and following plants, the lower leaves 

 are smaller, orbicular, and ovate. Petals distinct. 



Wild-thyme-leaved Sun-Rose. Fl. May, Sept. Clt. J731. 

 Shrub procumbent. 



103 H. VULGA'RE (Gsert. fruct. 1. p. 371. t. 76.) stem suffru- 

 ticose, procumbent, branched ; branches elongated ; leaves 

 scarcely revolute at the margins, under surface cinereously- 

 hoary, upper surface gre'en, pilose, somewhat ciliated ; lower leaves 

 somewhat orbicular, middle ones ovate-elliptical, upper ones 

 oblong ; stipulas oblong-linear, ciliated, longer than the foot- 

 stalks of the leaves ; racemes loose ; pedicels and calyxes pilose. 

 ?2 . H. Native of dry and hilly pastures throughout Europe ; 

 common in Britain. Cistus Helianthemum, Lin. spec. 1. p. 744. 

 Fl. dan. t. 101. Smith, engl. bot. 1321. Curt. fl. lond. fasc. 5. 

 t. 36. Petals yellow, entire, with a fulvous base, imbricate. 



Var. a. i branches rather tomentose, pubescent ; stipulas 

 hardly longer than the footstalks of the leaves. 



Var. ft; branches glabrous at the base, pubescent at the 

 top ; stipulas 2 or 3 times longer than the footstalks of the 

 leaves. 



Var. y,Jlore -plena ; flowers double. Sweet, cist. t. 64. 



Common Sun-Rose. Fl. May, September. Britain. Shrub 

 trailing. 



104 H. SURREJA'NUM (Mill. diet. no. 15.) stem suffruti- 

 cose, procumbent ; leaves ovate-oblong, rather pilose ; racemes 

 many-flowered, terminal; petals narrow lanceolate, jagged. J? . H. 

 Native of England in the county of Surrey, near Croydon. 

 Sweet, cist. t. 28. Cistus Surrejanus, Lin. spec. 743. Smith, engl. 

 bot. 2207. Dill. elth. 177. t. 145. f. 174. Stipulas linear-lan- 

 ceolate, length of petioles. Calyxes pilose. Petals distinct. 



Surrey Sun-Rose. Fl. July, Oct. England. Shrub foot. 



105 H. OVA'TUM (Dunal. ined. and D. C. prod. 1. p. 280.) 

 stem suffruticose, procumbent, much branched ; branches villous, 

 leaves elliptic-lanceolate, tapering into the footstalks, bluntish, 

 silky-villous on both surfaces, ciliated ; stipulas somewhat longer 

 than the footstalks of the leaves villously-ciliated ; peduncles 1- 

 3-flowered, terminal ; calyxes rather villous. Jj . H. Native 

 on the mountains between Viterbo and Ronciglione, and in the 

 Alps about Genoa. Cistus ovatus, Viv. frag. 1. p. 6. t. 8. f. 2. 

 Hairs white, silky. 



Owaie-leaved Sun-Rose. Fl. June, Aug. Clt. 1818. Shrub 

 procumbent. 



106 H. GRANDIFL&RUM (D. C. fl. fr. 4. p. 821.) stem suffru- 

 ticose, ascendant ; branches hairy ; upper leaves flattish, oblong, 

 rather pilose, upper surface green, under surface sometimes pale- 

 cinereous ; stipulas ciliated, rather longer than the footstalks of the 

 leaves ; flowers large ; calyxes rather hairy. Jj . H. Native of 

 the Pyrenees. Sweet, cist. t. 69. Cistus grandiflorus, Scop. earn, 

 ed.' 2. no. 648. t. 25. Differing from H. vulgare, in being 

 larger in all its parts. Peduncles and calyxes covered with 

 spreading hairs. Flowers cream-coloured Petals imbricate. 



Large-flowered Sun-Rose. Fl. June, Aug. Clt. 1800. Sh.|ft. 



1 07 H. OBSCU'RUM (Pers. ench. 2. p. 79.) stem suffruticose, 

 ascendant, much branched; branches hairy ; leaves elliptical, hairy 

 on both surfaces, greenish, upper ones elliptic ; stipulas ciliated, 

 longer than the footstalks ; racemes long ; calyxes hairy. \ . H. 

 Native of Europe in woods. H. obscurum a, D. C. fl. fr. 6. 

 p. 624. The lower leaves are roundish and ovate, as well as in 

 the preceding and following species. 



Obscure Sun-Rose. Fl. May, Aug. Clt. 1816. Shrub 

 ascendant |- to 1 foot. 



