and flowering in July and August. It will endure our mildest winters in the open air; but in severe frosty weather it will require to be protected by glass, or by some slight covering. Plants of this species were in the Hammersmith Nursery in 1826. Variety. C. i. 2 canéscens. The canescent-leaved Cistus, or hoary Rock 8. C. UNDULA'TUS Dec. The waved-leaved Cistus, or Rock Rose. Identification. Dec. Prod., 1. p. 264.; Don's Mill., 1. p. 299. Synonymes. C. créticus Swt., t. 63., afterwards corrected to C. undulatus; perhaps C. crispus var. Don. Engraving. Swt. Cist., t. 63., under the name of C. créticus. Spec. Char., &c. Leaves sessile, linear-oblong, acute, with waved margins, 3-nerved at the base. Peduncles solitary, each furnished with a bractea. Sepals taper-pointed, villous. (Don's Mill., i. p. 299.) A shrub 2 ft. high, cultivated in collections, but of which the native country is unknown. It has purple flowers, which appear in June and July; and is probably a hybrid. It is rather tender, and not very frequently to be met with. It was in the Hammersmith Nursery, when Mr. Sweet's drawing was made, in 1827. 9. C. CRI'SPUS L. The curled-leaved Cistus, or Rock Rose. Spec. Char., &c. Leaves sessile, linear-lanceolate, undulately curled, 3-nerved, wrinkled, pubescent. Flowers almost sessile, 3 or 4 together, somewhat umbellate. (Don's Mill., i. p. 299.) Native of the south of France, Spain, and Portugal, and introduced into England in 1656. It is a shrub, growing to the height of 2 ft., and producing showy purple, or reddish purple, flowers in July and August. The leaves are ribbed, or nerved, and covered with hairs, much undulated at the edges, and of a whitish green. They vary considerably in size, as well as in form. It is a very distinct sort, and forms a very pretty bush, which will stand the severity of our winters without protection. Cuttings of the young wood, Mr. Sweet observes, planted under hand-glasses in autumn will strike root readily; but they will not strike so freely in summer. Plants of this kind were in the Fulham Nursery in 1826. 10. C. albiDUS L. The white-leaved Cistus, or Rock Rose. Spec. Char., &c. Leaves sessile, oblong-elliptical, hoary-tomentose, somewhat 3-nerved. Flowers 3 or 8, terminal, somewhat umbellate. Outer sepals largest. (Don's Mill., i. p. 299.) Native of France, about Narbonne, Spain, and Portugal. In British gardens, a shrub growing to the height of 2 ft., erect, much branched, and thickly crowded with white hoary leaves. The flowers, which are of a pale purple, a bright lilac, or a pale rose colour, terminate the branch in a sort of umbellate corymb, and appear in July and August. It is one of the most desirable species of the genus, being quite hardy, having flowers of the largest size, and thriving in almost any soil or situation not too moist. Cuttings put in in autumn are soon rooted, and the plant ripens seeds plentifully in ordinary seasons. 11. C. CANDIDI'SSIMUS Dun. The whitest-leaved Cistus, or Rock Rose. Identification. Dun. ined. Dec. Prod., 1. p. 264.; Swt. Cist., 3.; Don's Mill., 1. p. 299. Engravings. Swt. Cist., t. 3. Spec. Char., &c. Leaves ovate-elliptical, acute, densely clothed with hoary tomentum, 3-nerved; footstalks short and sheathing at the base, with pilose margins. Peduncles solitary, 1-flowered, shorter than the leaves. Outer sepals one half shorter than the rest. (Don's Mill., 1. p. 299.) Native of the Grand Canary Island, in elevated pine forests. This is a noble species, growing to the height of 4 ft. and upwards, with fine poplar-like leaves, and large pale rose-coloured flowers, with distinct petals, which appear in July and August. It was introduced into the Botanic Garden at Chelsea in 1815, where it flowered soon afterwards, and plants existed there in 1825. It forms a shrub, not sufficiently hardy to stand through the winter, about London, in the open air, as a bush; but, with dry litter laid about its roots, and a slight covering of mats in the most severe weather, it may be preserved. 12. C. VAGINA'TUS Ait. The sheathed-petioled Cistus, or Rock Rose. Identification. Hort. Kew., 3. p. 304.; Jacq. Hort. Sch., 3. p. 17.; Swt. Cist., t. 9.; Don's Mill., 1. p. 299. Synonymes. Cistus symphytifolius Lam.; Ciste à Feuilles de Consoude, Fr.; scheidenartige Čisten Rose, Ger. Engravings, Jacq. Hort. Sch., 3. p. 17. t. 282.; Bot. Reg., t. 225.; Swt. Cist., t. 9. Spec. Char., &c. Leaves lanceolate, acute, 3-nerved, hairy, under surface reticulated; footstalks furrowed, dilated, and sheathing at the base, with pilose margins. Peduncles 3-flowered, axillary or terminal, long, bracteate at the base. (Don's Mill., i. p. 299.) Native of the Island of Teneriffe. Introduced in 1779. A splendid-flowered species, easily distinguished by its panicled flowers, and large, imbricate, obcordate, crumpled petals. It grows to the height of 4 ft. ; and, being rather tender, it is generally kept in green-houses or pits. Its flowers are light rose colour, darker without and pale within their general appearance is that of an apple blossom on a large scale; and they continue appearing from April to June. Plants were in the Kensington Nursery in 1826. 13. C. SERI CEUS Vahl. The silky-leaved Cistus, or Rock Rose. Identification. Vahl. Symb., 1. p. 37.; Don's Mill., 1. p. 299. Engravings. Barrel. Icon., 1315. Spec. Char., &c. Leaves ovate, tomentose, 3-nerved; lower ones on footstalks, upper ones sessile. Peduncles hairy. (Don's Mill., i. p. 299.) Native of Spain, producing its purple flowers in June and July. It was in cultivation in 1826; and is said to grow to the height of 3 ft. 14. C. HYBRIDUS Vahl. The hybrid Cistus, or Rock Rose. Identification. Vahl. Symb., 1. p. 37.; Don's Mill., 1. p. 299. Spec. Char., &c. Leaves ovate, hoary, on footstalks. Branches beset with yellow scales. Peduncles elongated, subracemose, hairy. Outer sepals caducous. (Don's Mill., i. p. 299.) Native of Spain, where it produces its purple flowers in June and July. It is said to grow to the height of 3 ft., but has not yet been brought to Britain. B. Peduncles cymose. Style almost wanting. Stamens. Stigma capitate, shorter than the 15. C. CYMO'sus Dun. The cymose-flowered Cistus, or Rock Rose. Identification. Dun. ined. Dec. Prod., i. p. 265.; Don's Mill., 1. p. 299. Synonymes. Cistus incanus Sib. Fl. Gr., and at one time in the garden of Cels. Engravings. Fl. Gr., t. 494., as C. incànus; Swt. Cist., t. 90. Spec. Char., &c. Leaves broad-ovate, twisted at the top, acutish; under surface wrinkled and hoary. Footstalks dilated at the base, and somewhat sheathing, furrowed above. Peduncles cymose, 5- or 10-flowered, hoary, axillary, or terminal. (Don's Mill., i. p. 299.) A very handsome, small, bushy shrub, growing in British gardens to the height of 3 ft. It is a native of the Levant, and has been some years in cultivation in British gardens; but how long is uncertain. Sweet says it is often mistaken for C. incànus, but that it is nearer related to C. villòsus. It is somewhat tender, like all the other species from the Levant; and, in the climate of London, it requires a green-house, a cold-frame, or other protection, during winter. ii. Ledònia Dec. Derivation. From ledon, a name given by Dioscorides to the plant that produces the ladanum ; but which is supposed by some to be Cistus Lèdon (Dec. Prod., 1. p. 265.), and by others to be C. créticus. (See p. 320.) Sect. Char. Sepals 5, 2 outer ones largest, and very much pointed, or wanting. Petals white or whitish, with a yellow or purple mark at the base of each. Stamens numerous, longer than the pistil. Stigma almost sessile, large, capitate. Capsules 5- or 10-celled, from being furnished with 5 or 10 seminiferous partitions, one in the middle of each valve. Sub-evergreen shrubs or subshrubs. Leaves usually covered with clammy gluten. (Don's Mill., i. p. 299.) This section includes some of the finest species of the genus; such as C. cyprius, C. ladaníferus, C. laurifòlius, &c.: almost all of them are evergreen, and many of them form bushes from 4 ft. to 6 ft. in height, or more, which, when covered with flowers, are among the most ornamental objects that can be introduced into a shrubbery or flowergarden. A. Peduncles 1-flowered or many-flowered, cymose. Sepals 5, outer ones usually cordate at the Base, and pointed at the Apex. Capsules 3-celled. a. Peduncles naked at the Base, usually bearing beneath their Middle two opposite small Leaves. # 16. C. SALVIEFO`LIUS L. The Sage-leaved Cistus, or Rock Rose. Identification. Lin. Spec., 38.; Cav. Icon., 2. p. 31.; Jacq. Coll., 2. 120.; Swt. Cist., t. 54.; Smith's Fl. Græca, t. 497.; Don's Mill, 1. p. 299. Synonymes. Cistus foe'mina Clus. Hist., 1. p. 70.; Ciste à Feuilles de Sauge, Fr.; Salbey-blättrige Cisten Rose, Ger. Engravings. Cav. Icon., 2. t. 137.; Jacq. Coll., 2. t. 8.; Swt. Cist., t. 54.; Smith's Fl. Græc., t. 497. Spec. Char., &c. Leaves stalked, ovate, obtuse, wrinkled; under surface tomentose. Peduncles long, white from tomentum, 1-flowered, articulated above, solitary or ternary. (Don's Mill., i. p. 299.) Native of the south of France, Italy, Greece, Spain, and Portugal. Flowers white. A branchy shrub in British gardens, producing white flowers in July and August, and cultivated since the year 1548. The leaves are of a whitish or pale green colour; and, like every other part of the plant, are covered with numerous short hairs. It is readily distinguished from other species, by its solitary, 1-flowered, jointed peduncles, and its obtuse leaves. It is a very hardy species; and, in sheltered situations, it will endure the winter without any protection. The sage-like leaves and neat flowers of this plant give it a very pleasing appearance. Varieties. C. s. 2 erectiusculus Dec. has the stem rather more erect than the species; and C. s. 3 ochroleucus Dec. has the flowers cream-coloured. 17. C. OBTUSIFO`LIUS Swt. The obtuse-leaved Cistus, or Rock Rose. Identification. Swt. Cist., t. 42.; Don's Mill, 1. p. 299. Engraving. Swt. Cist., t. 42. Spec. Char., &c. Leaves almost sessile, tapering to the base, ovate-oblong, obtuse, wrinkled, clothed with starry pubescence; margins somewhat denticulated. Peduncles terminal, cymose, many-flowered. Outer sepals broadly cordate, acute. Petals obcordate, imbricated. (Don's Mill., i. p.299.) Native of Crete. Petals white, with a yellow spot at the base of each. This is a dwarf shrub, seldom growing higher than a foot and a half. Being a native of Crete, it requires shelter in severe frost. Mr. Sweet thinks that it has been in our gardens since the time of Dr. Sibthorp, without being noticed as distinct from C. salviæfòlius, of which, we have no doubt in our own minds, it is only a variety. Plants were in the Fulham Nursery in 1826. 18. C. CUPANIA NUS Presl. Cupani's Cistus, or Rock Rose, Identification. Presl ex Spreng. Syst. Append., p. 206.; Don's Mil., 1. p. 299. Engraving. Swt. Cist., t. 70. Spec. Char., &c. Stem erect. Leaves stalked, cordate-ovate, 3-nerved, reticulately veined; upper surface scabrous, under surface covered with fascicled hairs; margin fringed. Peduncles pilose, 2- or 3-flowered. Sepals villous, acuminated. Petals imbricated. (Don's Mill., i. p. 299.) Native of Sicily, but when introduced into England is uncertain. It grows to the height of 2 ft., and produces white flowers, with a spot of yellow at the base of each petal, in June and July. Sweet says that it is very nearly hardy, requiring protection only during the severest frosts; and, in sheltered situations, requiring no protection at all. It is nearly related, he says, to C. salviæfòlius, and to C. corbariensis'; but is of stronger growth than either of these. Plants were in the Fulham Nursery in 1827. The heart-shaped leaves of this species render it easily distinguishable from the others that have white flowers. Variety. C. C. 2 acutifolius. The acute-leaved Cupani's Cistus, or Rock Rose. (Swt. Cist., t. 78.; Don's Mill., i. p. 299.) C. acutifòlius Swt. ; C. salviæfolius 6 humifùsus Dec. Prod., i. p. 265., Swt. Cist., t. 78.- Leaves cordate-ovate, 3-nerved, reticulately veined, pubescent on both surfaces. Branches twiggy, diffuse, rather prostrate. Peduncles tomentose, generally 3-flowered. Sepals cordate, acute, shining, rather pilose, ciliated. Petals obcordate, imbricated at the base. (Don's Mill., i. p. 299.) Cultivated in Colvill's Nursery, Chelsea, in 1827; and, according to Sweet's figure, so closely resembling the preceding sort, that we have no doubt of their belonging to one species or race. # 19. C. CORBARIE'NSIS Pourr. The Corbières Cistus, or Rock Rose. Identification. Dec. Prod., 1. p. 265.; Swt. Cist., t. 8.; Don's Mill, 1. p. 299. Synonymes. C salvifolius & Dec. Prod. Fl. Fr., 4. p. 813.; C. populifolius minor, in some nurseries; C. hybridus Pourr., not of Vahl. Engraving. Swt. Cist., t. 8. Spec. Char., &c. Leaves stalked, somewhat cordate, ovate,' acuminated with fringed margins, wrinkled on both surfaces, and very glutinous. Peduncles long, 1-3-flowered. (Don's Mill., i. p. 299.) Found in the south of France, on the mountains of Corbières, and also in Spain; and cultivated in the English gardens in the year 1656. It is a shrub, 24 ft. high, handsome, and producing its flowers in May and June. According to Sweet, it is one of the hardiest species of the genus, thriving well in the common garden soil, and in any situation where it is not too moist. It continues in bloom for about two months; and every day during that period the plant is covered with a profusion of handsome white flowers, the margins of which are tinged with rose colour. The rose-coloured buds are also very pretty before the flowers expand. Plants were in the Hammersmith Nursery in 1825. 20. C. FLORENTINUS Lam. The Florentine Cistus, or Rock Rose. Identification. Lam. Dict., 2. p. 17.; Swt. Cist., t. 59.; Don's Mill, 1. p. 300. Engraving. Swt. Cist., t. 59. Spec. Char. Leaves narrow-lanceolate, wrinkled, reticulated on the under surface, almost sessile. Peduncles villous, generally 3-flowered. (Don's Mill., i. p. 300.) A native of Italy, whence it was brought to England in 1825. It is a shrub 3 ft. high, producing its white flowers in June and July. It is a rare and very distinct species, Mr. Sweet observes; and forms a very pretty upright bush, requiring some protection during winter. Plants of it were in the Fulham Nursery in 1826. 21. C. MONSPELIENSIS L. The Montpelier Cistus, or Rock Rose. Identification. Lin. Sp., 787.; Lam. Ill., t. 477.; Cav. Icon., 2. t. 137.; Jacq. Coll., 2. t. 8.; Swt. Cist., t. 27.; Smith's Fl. Græc., t. 493. Synonymes. Ciste de Montpelier, Fr.; Französische Cisten Rose, Ger. Engravings. Lam. Ill., t. 477. fig. 4.; Cav. Icon., 2. t. 137.; Jacq. Coll, 2. t. 8.; Swt. Cist., t. 27.; Smith's FL. Græc., t. 493, Spec. Char., &c. Leaves linear-lanceolate, sessile, 3-nerved, clammy, villous on both surfaces. Peduncles pilose, cymose, somewhat secund. (Don's Mill., i. p. 300.) A native of the south of France, Spain, and Portugal; and, at one time, abundant at Montpelier, as the name implies. A shrub which grows to the height of 4 ft., and has been in cultivation since the time of Gerard, in 1656. The leaves are lanceolate, wrinkled, and reflexed at the points; and the flowers are middle-sized, white, with the petals broadly cuneate. This sort is rather scarce in British collections, though it is of the easiest culture, and is a handsome-growing plant, and an abundant flowerer. It requires a warm border, and some protection in severe weather. 22. C. PLATYSE PALUS Swt. The broad-sepaled Cistus, or Rock Rose. Identification. Swt. Cist., t. 47.; Don's Mill.,!1. p.300. Engraving. Swt. Cist., t. 47. Spec. Char., &c. Leaves oblong-lanceolate, sessile, wrinkled, 3-nerved, villous on both surfaces. Peduncles cymose, and are, as well as the calyxes, villous. Sepals acuminated, outer ones broadly cordate. Petals obcordate, distinct. (Don's Mill., i. p. 300.) A shrub growing to the height of 3 ft. or 4 ft.; a native of Crete; and producing its white flowers in June and July. It is uncertain when it was introduced; but plants of it were in the Fulham Nursery in 1826. Sweet says that it is frequently confused with C. monspeliénsis, though no two plants need be more distinct, and it is much nearer related to C. hirsutus. 23. C. LE`DON Lam. The Ledon Cistus, or Rock Rose. Identification. Lam. Dict., 2. p. 17.; Duh. Arb., 1. p. 168. t. 66. Don's Mill., 1. p. 300. Synonymes. C. undulatus Link? C. ladaniferus monspeliénsium Bauh.; Ciste de Montpelier qui donne du ladanum, Ciste de Ledon, Fr. Engraving. Duh. Arb., 1. p. 168. t. 66. Spec. Char., &c. Leaves connate, oblong-lanceolate, nerved; upper surface smooth, shining, under surface silky, villous. Flowers corymbosely cymose. Peduncles and calyx clothed with silky hairs. (Don's Mill., i. p 300.) Found wild in the south of France, and figured and described by Du Hamel in 1755. He says ladanum is obtained from this species, and from others that are easily known by their having the smell of that gum. In catalogues, this species is marked as having been introduced in 1730; but Mr. Sweet remarks, in 1829, that he had not seen it about London for the last 10 years. 24. C. HIRSUTUS Lam. The hairy Cistus, or Rock Rose. Identification. Lam. Dict., 2. p. 17.; Clus. Hist., 1. p. 78.; Don's Mill., 1. p. 300. Engraving. Swt. Cist., t. 19. Spec. Char., &c. Leaves sessile, oblong, blunt, hairy. Peduncles short, 1-flowered, or cymosely many-flowered. Capsules small, covered by the large, hairy, pyramidal calyx. (Don's Mill., i. p. 300.) A shrub growing to the height of 4 ft.; a native of France and the mountains of Spain; producing its white flowers in June and July'; and cultivated in England in the year 1656. It forms a pretty little branching bush, readily distinguished from all other species of this section, by its very large pyramidal calyx, and small capsules. It bears our winters, in the open borders, without protection, except when the frost is very severe. It produces a great profusion of flowers, which continue to expand in succession for a considerable time. Plants were in the Fulham Nursery in 1826. 25. C. SIDERITIS Presl. The Ironwort-like Cistus, or Rock Rose. Identification. Spreng. Syst. Append., p. 204. ; Don's Mill., 1. p. 300. Spec. Char., &c. Decumbent. Leaves stalked, obovate, a little wrinkled, covered with hoary tomentum on the under surface. Peduncles elongated, 1-2-flowered, articulated above; and are, as well as the calyx, tomentose. Flowers nodding before expansion. (Don's Mill., i. p. 300.) A decumbent shrub, with white flowers from June to August, found on rocks in Sicily, and not yet introduced into British gardens. 26. C. LA'xus Ait. The loose-flowering Cistus, or Rock Rose. Spec. Char., &c. Leaves on short footstalks, ovate-lanceolate, acuminated, with wavy somewhat toothed margins, smoothish, upper ones hairy. Flowers cymose. Peduncles and calyx hairy. (Don's Mill., i. p. 300.) A shrub 3.ft. high, with white flowers and imbricate petals. Found wild |