338 ARBORETUM AND FltUTICETUM. PART III. 



clammy, somewhat cinereous, opposite, upper ones alternate. Lower 

 stipules minute, the rest long and loose. Peduncles and calyxes villous, 

 clammy. Petals distinct. {Don's Mill., i. p. 308.) Found within the south 

 of France and Spain, and introduced in 1790. It is a slender plant, growing 

 about 1 ft. in height, and producing very small pale yellow flowers from 

 May to September. It is a distinct sort ; and, though not very ornamental, 

 it is valuable on account of its flowering the whole summer. Its flowers 

 are very fugacious, the petals expanding in the morning, and dropping before 

 the middle of the day. 



§ vi. Pseiido-Cistus Dec. Prod., i. p. 276. 



Derivation. From pseudes, false, and Cistus j false cistus. 



Sect. Char. Calyx of 5 sepals ; outer sepals narrow, minute ; inner ones 

 4-veined. Petals yellow, small, scarcely twice the length of the sepals. 

 Style twisted at the base, and bent inwards at the apex, usually shorter than 

 the stamens, rarely longer. Stigma capitate, 3-lobed. Capsule small. 

 Seeds few, rather rufescent. Perennial herbs or subshrubs. Leaves 

 stalked, feather-nerved, opposite, usually without stipules, rarely with 

 stipules at the summits of the branches. Flowers secund, racemose, or pa- 

 nicled. Pedicels bracteate at the base, recurved before flowering, when in 

 flower erect, but afterwards reflexed. Bracteas sessile, linear-lanceolate. 

 {Don's Mill., i. p. 308.) Evergreen undershrubs, bushes, or trailers, of the 

 smallest size. 



«_ 33. H. mo'lle Pers. The soft-leaved Helianthemum, or Sun Rose. 



Identification. Pers. Ench., 2. p. 76. ; Don's Mill., 1. p. 308. 



Synonymes. Cistus mollis Cav. Icon., 3. p. 31. t. 262. f. 2. 



Engravings. Cav. Icon., t. 262. f. 2. 



Spec. Char., %c. Suffruticose. Branches almost simple, pilose. Leaves roundish-ovate, obtuse, stalked, 

 hairy, tomentose on both surfaces, soft. Racemes simple, and are, as well as the calyxes, hairy, 

 tomentose, cinereous. (Don's Mill., i. p. 308.) A native of Spain, whence it was introduced in 

 1817 ; grows 1 ft. high, and produces its yellow flowers from June to August. 



ju 34. H. origanifo v lium Pers. The ~Mar}oram-leaved Helianthemum, 

 or Sim Rose. 



Identification. Pers. Ench., 2. p. 76. ; Don's Mill., 1. p. 308. 



Synonymes. Cistus origanifblius Lam. Diet, 2. p. 20., Cav. Icon., 3. p. 31. t. 262. f. 1. 



Engraving. Cav. Icon., 3. t. 262. f. 1. 



Spec. Char., 8;c. Stem suffruticose, di-tri-chotomous. Leaves stalked, ovate, pilose on both surfaces. 

 Racemes short, terminal. Petals scarcely longer than the calyx. (Don's Mill., i. p. 308.) A 

 trailer, a native of Spain, whence it was introduced in 1795. The flowers are exceedingly small ; 

 but they are produced in abundance in June and July. 



«U 35. H. dicho'tomum Dunal. The dichotomous-branched Helianthemum, 



or Sun Rose. 



Identification. Dunal ined., and Dec. Prod., 1. p. 276. ; Don's Mill., 1. p. 308. 

 Synonyme. Cistus dichotomus Cav. Icon., 33. p. 2. t. 263. f. 1. 

 Engraving. Cav. Icon., 3. p. 32. t. 263. f. 1. 



Spec. Char., fyc. Suffruticose. Branches dichotomous, smoothish. Leaves 

 minute, ovate, acute, glabrous, with revolute margins, on short footstalks. 

 Racemes slender, few-flowered. {Don's Mill., i. p. 308.) A native of Spain, 

 whence it was introduced in 1826. It is a neat little prostrate shrub, with 

 small leaves, having the appearance of those of Thymus Piperella ; and ex- 

 ceedingly small flowers, hardly the size of those of Spergula nodosa, but of 

 a deep yellow. They appear in the beginning of June, and continue till the 

 end of August. 



<u 36. H. osla'ndicum Dec. The (Eland Helianthemum, or Sun Rose. 



Identification. Dec. Fl. Fr., 4. p. 817. ; Don's Mill., 1. p. 308. 



Synonymes. Cistus celandicus Lin. S/>.,741. ; Chamaecistus, ii., Ctus. Hist., p. 73. ic. 



Engraving. Swt. Cist., t. 85. 



Spec. Char., Sfc. Stem suffruticose, procumbent, branched. Leaves lanceolate- 

 elliptical, bluntish, green on both surfaces, usually glabrous, sometimes 

 ciliated, stalked; upper leaves sessile. Racemes simple, few-flowered. 



