CISTINE^E. II. HELIANTHEMUM. 



303 



Native of Spain and Portugal. Cistus involucr&tus, Lam. diet. 

 2. p. 20. Axillary branchlets leafy. Flowers yellow. 



Involucrated-Hovfered. Sun-Rose. Fl. June, July. Clt. 1826. 

 Shrub 2 feet. 



13 H. CHEIRANTHOI'DES (Pers. ench. 2. p. 76.) erect, branch- 

 ed ; younger branches villously-tomentose, hoary ; leaves tomen- 

 tose, hoary, oblong-lanceolate, tapering out into the footstalk ; 

 peduncles very short, 2 -flowered ; calyx somewhat villous, 5- 

 sepalled, outer sepals very minute. Tj . F. Native of Spain. 

 Sweet, cist. t. 107. Cistus cheiranthoides, Lam. diet. 2. p. 19. 

 Cistus elongatus, Vahl. symb. 1. p. 38 ? Cistus halimi folio II. 

 Clus. hist. 1. p. 71. Floral leaves small, alternate. Flowers 

 yellow, without a dark spot^at the base of each petal, imbricate. 



Wallflower-like Sun-Rose. Fl. July, Aug. Clt. 1800. Shrub 

 3 feet. 



14 H. CA'NDIDUM (Sweet, cist. t. 25.) erect; branches le- 

 prously-white, as well as the leaves on both surfaces, which are 

 obovate-lanceolate, tapering to the base, somewhat stalked, upper 

 surface pilose, under surface scabrous from papillae, rather 3- 

 nerved ; floral ones opposite, sessile, and green on both surfaces ; 

 peduncles long, rather panicled, glabrous or with a few scat- 

 tered hairs ; calyxes with 3 or 5 acute sepals, villous ; petals 

 imbricated. Tj . F. Native of Spain. Petals bright yellow, 

 with a dark velvety spot at the base of each, edged with 

 purple. 



Whitened Sun-Rose. Fl. June, Aug. Clt. ? Shrub 2 to 3 ft. 



15 H. HALIMIFOLIUM (Willd. enum. 569.) erect, branched; 

 branches leprously-white at the top, as well as the leaves on 

 both surfaces ; leaves on very short footstalks, ovate-oblong, 

 tapering to the base ; peduncles long, branched, somewhat 

 panicled, leprously-white ; calyx leprous, 5-sepalled, two outer 

 ones very narrow, linear, 1? . F. Native of Spain and Por- 

 tugal by the sea-side. Sweet, cist. t. 4. Cistus halimifolius, 

 Lin. spec. 738. Cistus folio halimi I. Clus. hist. 1. p. 71. 

 Floral leaves small, alternate. Petals yellow, spotless, or each 

 marked with a small dark-bloody spot at the base, imbricate. 

 Capsule 2-3-valved. 



Var. ft, obtusifolium (D. C. prod. 1. p. 269.) leaves obtuse, 

 tj . F. Growing along with var. a. 

 Sea-Purslane-leaved. Fl. Ju. Aug. Clt. 1656. Shrub 3 feet. 



SECT. II. LECHEOI'DES (from Lechea and idea, similar ; plants 

 with the habit of Lechea.) D. C. prod. 1. p. 269. Calyx 5- 

 sepalled, two outer sepals narrow, linear, 3 inner ones acute, 

 with scarious margins. Petals yellow. Style almost wanting, 

 or very short, erect. Stigma large, capitate. Ovary trian- 

 gular. Capsule smooth, shining 3-valvecl, 1-celled. Seeds 

 rufescent, small. Stems herbaceous or suffruticose, ascendant 

 or erect, usually dichotomous. Lower leaves opposite, cauline 

 ones alternate, feather-nerved, on short footstalks or sessile, with- 

 out stipulas. 



* Peduncles many-flowered, axillary, or terminal. Flowers 

 small, crowded, yellow. 



16 H. CORYMBOSUM (Michx. fl. bor. amer. 1. p. 307.) suffruti- 

 cose, branched, erect ; branches dichotomous, rather pubescent, 

 somewhat tomentosely-cinereous at the top ; cauline leaves alter- 

 nate, oblong-lanceolate, bluntish, under surface clothed with 

 woolly tomentum, upper leaves with revolute margins ; corymbs 

 fastigiate, crowded ; calyx tomentosely-hairy, canescent, outer 

 sepals linear, blunt, inner ones ovate, acute, somewhat shorter 

 than the capsule, f; . H. Native of New Jersey and Georgia. 

 Style very short. 



Corj/mi-flowered Sun-Rose. Fl. July, Aug. Shrub 1 foot. 



17 H. ROSMARINIFOLIUM (Pursh, fl. amer. sept. 2. p. 364.) 

 erect, branched, dichotomous ; branches very erect, pubescent ; 



leaves oblong-linear, with the margins usually revolute, under 

 surface clothed with hoary tomentum ; axillary branchlets on 

 very short peduncles, 1-3-flowered, shorter than the leaves ; inner 

 sepals ovate, acute, 3 times smaller than the petals. If. . H. Na- 

 tive of Georgia, Canada, and about Boston. Lechea major, 

 Bigel. fl. bost. p. 29. Flowers minute, crowded. Capsule 

 shining, triquetrous, rufous. Petals pale yellow. 



Rosemary-leaved Sun-Rose. Fl. July, Aug. Clt. 1823. PI. 1 ft. 



18 H. GLOMERA'TUM (Lag. in litt.) suffruticose, erect, some- 

 what dichotomous ; branches rather tomentosely-cinereous ; 

 leaves lanceolate-oblong, tapering to the base, under surface 

 hoary ; racemes axillary or terminal, many-flowered, smaller 

 than the leaves ; flowers glomerate. Tj . F. Native near Aca- 

 pulca and Cimupan in New Spain. Sweet, cist. t. 110. Cistus 

 glomeratus, Lag. gen. et spec. p. 16. Flowers small. 



Glomerate-flowered Sun-Rose. Fl. July, Aug. Clt. 1823. 

 Shrub | foot. 



* * Peduncles \-flowered, bractless, situated on the branches. 



19 H. RAMULIFLORUM (Michx. fl. amer. bor. 1. p. 307.) 

 erect, beset with powdery pili, branched at the top, somewhat 

 dichotomous ; branchlets twiggy, bearing flowers ; cauline leaves 

 lanceolate-elliptic or oblong, acute, with the margins scarcely 

 revolute, under surface hoary-tomentose ; flowers stalked, soli- 

 tary ; inner sepals broad-ovate, acuminated ; capsule globose, 

 length of calyx. 1. H. Native of Carolina. Cistus virgatus, 

 Thibaud, ined. Peduncles and calyxes pilose. Style very 

 short, erect. 



Branch-flowered Sun- Rose. Fl. Ju. Aug. Clt. 1823. PI. 1 ft. 



20 H. CANADE'NSE (Michx. fl. bor. amer. 1. p. 308.) ascen- 

 dant ; branches erect, hairy ; cauline leaves oblong-lanceolate, 

 acute, hairy, under surface palest ; peduncles hairy, 1 -flowered, 

 solitary ; inner sepals broad-ovate, acuminated ; capsules shorter 

 than the calyx. I/ . H. Native of Canada and Carolina. 

 Sweet, cist. 21. Cistus .Canadensis, Willd. spec. 2. p. 1199. 

 Calyx hairy. Petals obcordate, imbricate. 



Canadian Sun-Rose. Fl. July, Aug. Clt. 1799. PI. 1 foot. 



21 H. BRASILIE'NSE (Pers. ench. 2. p. 77.) suffruticose; branch- 

 es simple, hairy ; leaves ovate-oblong, acute, sessile, hairy ; 

 peduncles and calyxes hairy, canescent; peduncles solitary, 1- 

 flowered ; inner sepals ovate, acuminated. Tj . F. Native of 

 Brasil on the mountains. Sweet, cist. t. 43 Cistus Brasiliensis. 

 Lam. diet. 2. p. 22. Cistus alternifolius, Vahl. symb. 1. p. 38. 



Brasilian Sun-Rose. Fl. Ju. July. Clt. 1823. Shrub i foot. 



22 H. poiYGALjEFo'iiuM (Sweet, cist. t. 11.) suffruticose, 

 flexuous, ascending, branched ; branches weak, hairy-tomen- 

 tose, rather hoary ; cauline leaves sessile, alternate, acute, 

 ciliated, shining, lower ones oblong-lanceolate, upper ones lan- 

 ceolate-linear ; peduncles 1 -flowered, longer than the leaves, and 

 are as well as the calyxes hairy-canescent ; inner sepals ovate, 

 lanceolate, acuminated; petals obcordate, concave, crenulated, 

 imbricate at the base. Pj . F. Native of Brasil. 



Milkivort-leaved Sun-Rose. Fl. Ju. July. Clt. 1823. Sh. 4 ft. 



23 H. CAROLINIA'NUM (Michx. fl, bor. amer. 1. p. 307.) her- 

 baceous, hairy, erect ; leaves tomentosely-hairy, rather denticu- 

 lated, green on the upper surface, on short footstalks, blunt, 

 lower ones opposite, obovate, the rest alternate, oblong-ovate ; 

 peduncles solitary, 1 -flowered, clothed with white hairs; calyx 

 hairy ; inner sepals oblong, acute. I/ . H. Native of Carolina 

 and Georgia. Vent. eels. 74. icon. Sweet, cist. t. 99. Flowers 

 large, with the petals slightly imbricate at the base. 



Carolinian Sun-Rose. Fl. July, Aug. Clt. 1823. PI. i foot. 



24 H. A'STYLUM (Moc. et Sesse, fl. mex. icon. ined. and D. C. 

 prod. 1. p. 284.) stems diffuse, rather herbaceous, dwarf; 

 leaves generally alternate, stipulate, ovate-oblong ; sepals 5, the 



