Varieties. De Candolle mentions three forms of this species: H. h. bæʼticum, H. h. aureum, and H. h. teretifolium. 68. H. LAGA'SCÆ Dunal. La Gasca's Helianthemum, or Sun Rose. Indentification. Dunal. ined., and Dec. Prod., 1. p. 281.; Don's Mill., 1. p. 312. Synonyme. H. hirtum var. Lag. in Litt. Spec. Char., &c. Branches ascendent, tomentosely hairy, hoary. Leaves linear, obtuse, with very revolute margins, almost terete, rather hairy, greenish. Stipules flat, scarcely pilose, twice the length of the footstalks of the leaves. Pedicels hispid, whitish. Calyxes shining, furrowed Nerves ciliated with white hairs. (Don's Mill., i. p. 312.) A native of Spain, introduced into England in 1826, and so like the foregoing species as to be often considered a variety of it. B. Petals white, rose-coloured, red, pale sulphur-coloured, or variegated with these Colours. 69. H. VIOLA CEUM Pers. The Violet-coloured-calyxed Helianthemum, or Sun Rose. Identification. Pers. Syn., 2. p. 78.; Don's Mill., 1. p. 312. Engraving. Cav. Icon., 2. t. 147. Spec. Char., &c. Stem erect or ascendent, much branched. Branches opposite; branchlets slender, tomentosely hairy, hoary. Leaves small, almost linear, obtuse, with revolute margins, somewhat tomentose on both surfaces; under surface canescent. Stipules minute, pilose. Racemes few. flowered, loose. Calyxes smooth, violaceous, nervedly furrowed. (Don's Mill., i. p. 512.) A native of Spain, and in cultivation since 1826. The flowers are white, slightly tinged with violet, and they appear in June and July. 70. H. RACEMO'SUM Dunal. The racemose-flowered Helianthemum, or Identification. Dunal. ined., and Dec. Prod., 1. p. 281.; Don's Mill., 1. p. 312. Synonymes. Cistus racemòsus Lin. Mant., 76. ?, Lam. Dict., 2. p. 25., Vahl. Symb., 1. p. 39., Willd Spec. Char., &c. Stem shrubby, branched. Branches erect, terete, hoary, tomentose. Leaves on short footstalks, narrow-linear, or linear-lanceolate, with revolute margins; under surface hoary, upper surface greenish, shining. Stipules awl-shaped, longer than the footstalks of the leaves. Pedicels hoary. Calyxes nervously furrowed, brownish violet. (Don's Mill., i. p. 312.) A native of Spain, Barbary, and Teneriffe, and in cultivation in the Bristol Nursery in 1828. It is a very beautiful species, with large white flowers, having imbricate crenulate petals, and the sepals marked with red or violet. It is readily distinguished, Sweet observes, from all the others of its section, by its upright growth, glossy leaves, and the red veins of its sepals. Its flowers are produced nearly the whole summer, and it requires very little protection during the winter. 12 71. H. FARINO`SUM Swt. The mealy-leaved Helianthemum, or Sun Rose. Identification. Swt. Cist., p. 18.; Don's Mill., 1. p. 312. Synonyme. H. racemòsum ẞ farinòsum Dec. Prod., 1. p. 281. Spec. Char., &c. Stem shrubby, erect, branched, tomentosely hoary. Leaves on short footstalks, linear, or lanceolate-linear, with revolute margins, hoary and powdered on both surfaces. Stipules awl-shaped, longer than the footstalks of the leaves. Calyx powdery, as well as beset with very short hairs. (Don's Mill., i. p. 312.) A native of Spain, with white flowers in June and July. De Candolle considers it a variety of H, racemòsum. It is said to have been cultivated in 1820. 72. H. STRICTUM Pers. The straight-branched Helianthemum, or Sun Rose. Identification. Pers. Ench., 2. p. 79.; Don's Mill., 1. p. 312. Spec. Char., &c. Stem suffruticose, erect, branched. Branches straight, hoary-tomentose. Leaves almost sessile, very narrow, linear awl-shaped, with revolute margins, canescent. Stipules linear, setaceous. Calyxes pilose, nervously-striated, yellowish, smoothish. (Don's Mill., i. p. 312.) A native of Spain, and in cultivation since 1820, producing white flowers in June and July. 73. H. PILO`SUM Pers. The pilose Helianthemum, or Sun Rose. Varieties. De Candolle has two forms of this species: one with linear leaves, hoary; and the other with linear leaves, oblong and shining. Spec. Char., &c. Stem suffruticose, branched. Branches erectish. Leaves linear or linear-oblong, hoary on both surfaces, and bristly at the apex. Stipules awl-shaped. Calyxes rather pilose, nervously striated. (Don's Mill., i. p. 312.) A native of Spain and the south of France, and in cultivation since 1731; producing its white flowers from May to July. According to Sweet, it is nearly related to H. lineàre, and also to H. apenninum : but it differs from the former in having whiter leaves, and being more hairy; and from both, by its imbricate paper-white petals. Plants of it were in the Fulham Nursery in 1826. 74. H. LINEA`RE Pers. The linear-leaved Helianthemum, or Sun Rose. Identification. Pers. Ench., 2. p. 78.; Don's Mill., 1. p. 312. Synonymes. Cistus lineàris Cav. Icon., 3. p. 8.; Cistus pilòsus Dec. Fl. Fr., 5. p. 823. ? Spec. Char., &c. Stem suffruticose. Branches elongated, ascendent, rather hoary, tomentose. Leaves linear, greenish hoary, with revolute margins. Stipules linear awl-shaped. Racemes loose, twiggy, few-flowered. Calyxes striated, glabrous, with the nerves somewhat violaceous. Sepals acute. (Don's Mill., i. p. 312.) A native of Spain and the south of France; in cultivation since 1817; and producing white flowers from June to August. It requires a little protection during winter. 75. H. VIRGA`TUM Pers. The twiggy Helianthemum, or Sun Rose. Identification. Pers. Ench., p. 79.; Don's Mill., 1. p. 313. Varieties. De Candolle mentions two forms of this species: H.v. albiflòrum, in which the petals are white; and H. v. ròseum, in which they are pale rose-coloured. Spec. Char., &c. Stem suffruticose, with twiggy, hoary, ascending or erect branches. Leaves linear, hoary on the under surface, with revolute margins. Stipules linear awl-shaped. Calyxes hoary, powdery, pubescent. (Don's Mill., i. p. 313.) A native of Barbary, and in cultivation since 1818. The flowers are of a pale rose colour, large in proportion to the leaves, and the petals have yellow spots at the base. The flowers appear from May to August. This is one of the most beautiful species of the section to which it belongs it requires a little protection during winter, but grows and flowers freely during summer, and also ripens seeds. Plants of it were in the Epsom Nursery in 1828. 76. H. APENNINUM Dec. The Apennine Helianthemum, or Sun Rose. Identification. Dec. Fl. Fr., 4. p. 824; Don's Mill., 1. p. 313. Synonymes. p. 26. Cistus apenninus Lin. Sp., 744.?, Dill. Elth., 170.; Cistus hispidus 3 Lam. Dict., 2. Engraving. Swt. Cist., t. 62. Varieties. De Candolle records two forms of this species; one with leaves broad and flattish, andt other with leaves linear and narrow. Spec. Char., &c. Stem suffruticose, branched. Branches spreading, hoary tomentose. Leaves stalked, oblong linear, with the margins scarcely revolute; under surface tomentose, upper surface glaucescent, but at length becoming smooth. Stipules awl-shaped, longer than the footstalks of the leaves. Calyxes covered with very short hairs, striated, cinereously glaucous, bluntish. (Don's Mill., i. p. 313.) A native of Spain, France, Italy, and Germany, on dry hills and places exposed to the sun; and in cultivation in British gardens since 1731. The flowers are white, and the petals are distinct, and marked with yellow at their base. The plant is as hardy as the common species. It was in the Chelsea Botanic Garden in 1828. 77. H. HI'SPIDUM Dunal. The hispid-herbaged Helianthemum, or Sun Rose. Identification. Dunal ined., and Dec. Prod., 1. p. 282.; Don's Mill., 1. p. 313. Synonymes. Cistus hispidus Lam., 2. p. 26.; Brot. Fl. Lus., 2. p. 271.; Cistus pilòsus ß Gouan. Fl. Monsp., p. 265.; H. majoranæ folium ß Dec. Fl. Fr. Suppl., p. 625. Spec. Char., &c. Stem suffruticose, branched. Branches ascending, hoary-tomentose. Leaves stalked, oblong, bluntish, somewhat mucronate, with revolute margins; under surface hoary, upper surface roughish, greenish-glaucous. Calyxes covered with long hairs. (Don's Mill., i. p. 313.) Native of the south of France, and in cultivation since 1816; producing its white flowers from May to July. 78. H. PULVERULE'NTUM Dec. The powdered-leaved Helianthemum, or Sun Rose. Identification. Dec. Fl. Fr., 4. p. 823.; Don's Mill., 1. p. 313. Synonymes. Cistus pulverulentus Pour. Act. Toal., 3. p. 311.; Cistus polifòlius Lam. Dict., 2. p. S., but not of Lin. Engraving. Swt. Cist., t. 29. Spec. Char., &c. Stem suffruticose, much branched, prostrate. Branches hoary-tomentose. Leaves oblong linear, with revolute margins, obtuse; under surface hoary, upper surface glaucous. Stipules subulate, ciliated, longer than the footstalks of the leaves. Calyxes hoary, minutely tomen tose, pubescent. (Don's Mill., i. p. 313.) A native of France, on sterile hills; and, according to Sweet, in cultivation in the Chelsea Botanic Garden in 1826. It has white flowers, about an inch broad, which appear in May and June; and, though they are not so showy as some of the other species, yet, as Sweet observes, they make a pleasing variety. It is nearly related to H. apenninum. 79. H. MACRA'NTHUM Swt. The large-flowered Helianthemum, or Sun Rose. Identification. Swt. Cist., t. 103.; Don's Mill., 1. p. 313. Engraving. Swt. Cist., t. 103. Spec. Char. &c. Stem suffruticose. Branches procumbent, rather tomentose. Leaves flat, ovate oblong, acutish; smooth above, and densely tomentose beneath, pale cinereous. Stipules rather pilose, about equal to, or longer than, the petioles. Calyx striated, pilose. Petals distinct. (Don's Mill., i. p. 313.) The native country of this species is uncertain; but, according to Sweet, it was in cultivation in the Hammersmith Nursery in 1828. The leaves are large and flat, and the flowers larger than any other in the section. The petals are of a cream-coloured white, distinct, spreading, and very slender at the base, where they are marked with yellow. The plant is as hardy as the common species. It was cultivated in the Hammersmith Nursery 7k in 1828. Variety. H. m. 2 múltiplex Swt. Cist., t. 104., and our fig. 74., is ♣ 80. H. Rhoda'NTHUM Dunal. The red-flowered Helianthemum, or Sun Rose. Identification. Dunal, ined., and Dec. Prod., 1. p. 282.; Don's Mill., p. $13 Synonymes. Cistus ròseus Jacq. Hort. Vin., 3. p. 65.? Cistus angustifolius, formerly in the Royal Botanic Garden at Paris.; Cistus piluliferus Thib. ined. Engraving. Swt. Cist, t. 7. Varieties. De Candolle records three forms of this species: H. r. oblongifòlium, H. r. subkirsùtum, and H. r. cárneum. Spec. Char., &c. Stem suffruticose, procumbent. Branches rather tomentose, and hoary. Leaves oblong, with revolute margins; under surface hoarytomentose, upper surface greenish glaucous. Stipules awl-shaped, pilose, and bristly at the tip. Calyxes covered with short white tomentum. (Don's Mill., i. p. 313.) A native of Spain, introduced in 1800, and, according to Sweet, in the Chelsea Botanic Garden in 1825. It is a very showy kind, with flowers of a bright red, inclining to crimson, which it produces in abundance, being quite hardy and of the easiest culture. Sweet says, "Our drawing was taken from a fine plant, growing luxuriantly, with many other handsome species, on the rockwork of the Chelsea Botanic Garden, in June, 1825. Nothing could make a more brilliant appearance than the different habits of growth and beautiful flowers of various colours with which the plants on this rockwork were decked every day for about two months. H. rhodánthum," he adds, "also makes a handsome appearance when grown in pots." We may observe, here, that the rockwork in the Chelsea Botanic Garden forms a sort of truncated cone, flattened on the sides, terminating in a small basin for water plants; and it suggests the idea that a helianthemum wall, constructed somewhat on the same plan as the strawberry wall of Mr. Byers (Gard. Mag., vol. v. p. 438.), would be a very suitable manner of growing the species. 81. H. CANE'SCENS Swt. The canescent-leaved Helianthemum, or Sun Rose. Identification. Swt. Cist., t. 51.; Don's Mill., 1. p. 313. Spec. Char., &c. Stem suffruticose, branched, diffuse. Branches ascending, rather tomentose, canescent. Leaves flat, or hardly revolute at the margins; under surface tomentosely hoary, upper surface greenish glaucous. Lower leaves ovate oblong, obtuse; upper ones lanceolate, acute. Stipules linear, ciliated, somewhat longer than the footstalks. Calyxes smoothish, but with the nerves pubescent. Petals imbricated. (Don's Mill., i. p. 313.) A splendid plant, with reddish crimson flowers; the petals imbricated, and having a small orange spot at the base of each. Its native country is uncertain, but it was in cultivation in the Fulham Nursery in 1826. Sweet considers it as having the darkest-coloured, if not the handsomest, flowers of the genus. The flowers are also, he says, very large for the size of the plant. It is nearly related to H. rhodánthum, but is readily distinguished from it by its canescent leaves, and stronger habit of growth. 82. H. CONFU`SUM Swt. The confused Helianthemum, or Sun Rose. Identification. Swt. Cist., t. 91.; Don's Mill., 1. p. 313. Synonyme. H. poliifolium Dec. Prod., 1. p. 283. Engraving. Swt. Cist., t. 91. Spec. Char., &c. Stem suffruticose. Branches procumbent, smoothish, rather tomentose at the apex. Leaves oblong, ovate, bluntish, rather flat; under surface tomentose, hoary; upper surface glabrous, green. Stipules and bracteas linear, green, ciliated. Calyxes striated, smoothish, rather shining. Petals imbricate. (Don's Mill., i. p. 313.) A native of France and Spain, and, according to Sweet, cultivated in British nurseries in 1829. Its flowers are white, and of a delicate texture. This sort, Sweet observes, is generally found, in the nurseries, under the name of H. poliifòlium; but he thinks that it has nothing to do with the English species of that name. For some reason of this kind,we suppose, it has been called the H. confùsum. 83. H. LANCEOLA TUM Swt. The lanceolate-leaved Helianthemum, or Sun Rose. Identification. Swt. Cist., t. 100.; Don's Mill., 1. p. 313. Spec. Char., &c. Stem suffruticose, much branched, procumbent. Branches 84. H. POLIIFO`LIUM Pers. The Polium-leaved Helianthemum, or Sun Rose. Identification. Pers. Ench., 2. p. 80.; Don's Mill., 1. p. 313. Synonyme. Cistus polifolius Lin. Sp., 745., Smith's Engl. Bot., 1322., Dill. Elth., 175. t. 145. f. 172. Engravings. Smith's Engl. Bot., t. 1522.; Dill. Elth., 175. t. 145. f. 172. Spec. Char., &c. Stem suffruticose, branched. Branches procumbent, densely tomentose. Leaves oblong-linear, with revolute margins, hoary-tomentose on both surfaces. Stipules narrow, linear, obtuse, longer than the petioles, and are, as well as the bracteas, tomentose and ciliated. Petals distinct, crenulated. (Don's Mill., i. p. 313.) A native of England, producing its white flowers, marked with yellow, from May to August. It is found on stony hills near the sea side, particularly on Brent Downs, Somersetshire; also at Babicome, near Newton Abbot, and on Tor Hill, near Torquay, Devonshire. 85. H. MUTA'BILE Pers. The changeable-coloured-flowered Helianthemum, or Sun Rose. Identification. Swt. Cist., 106.; Pers. Ench., 2. p. 79.; Dec. Prod. 1. p. 283.; Don's Mill., 1. p. 315. Varieties. There are three forms of this very handsome species; one with white flowers, another with smaller flowers of a rose red, and the third with double rose-coloured flowers. Spec. Char., &c. Stem suffruticose. Branches procumbent, rather tomentose. Leaves flat, ovate-oblong, acutish; upper surface glabrous, under surface tomentose, pale-cinereous. Stipules rather pilose, generally equal in length with the footstalks of the leaves, or longer. Calyxes striated, smoothish. Petals imbricate. (Don's Mill., i. p. 313.) A native of Spain, and in cultivation in British gardens in 1829. The flowers are produced from June to August, in great abundance; and seeds are ripened afterwards in fine seasons. The plants are quite hardy. They were cultivated for sale in the Clapton Nursery in 1829. 86. H. VARIEGA TUM Swt. The variegated Helianthemum, or Sun Rose. Identification. Swt. Cist., t. 38.; Don's Mill., 1. p. 314. Spec. Char., &c. Stem suffruticose, procumbent. Branches tomentose, rather hoary, diffusely procumbent. Leaves lanceolate, acute, flattish; under surface hoary-tomentose, upper surface green, rather scabrous. Stipules linear, ciliated, longer than the petioles. Calyxes covered with short violaceous tomentum. Petals imbricate, undulated. (Don's Mill., i. p. 314.) A hybrid between H. rhodánthum and H. lineàre, found by Mr. Sweet in the Chelsea Botanic Garden in 1827. "When in full bloom, it makes a very pleasing appearance, from the diversity of colours in its flowers; some being nearly all red, others variegated with dark and light red and white, and some altogether white: it also continues to bloom, if the weather prove favourable, from May to November." It is as hardy as the indigenous species. 87. H. VERSI COLOR Swt. The various-coloured Helianthemum, or Sun Rose. Identification. Swt. Cist., t. 26.; Barrel. Icon., 440.; Don's Mill, 1. p. 314. Spec. Char., &c. Stem shrubby, erect. Branches ascending, rather hoary from stellate down. Leaves oblong, flat, or concave above; under surface hoary-tomentose, upper surface green, glabrous. Stipules oblong-linear, ciliated, bristly at the top, somewhat longer than the leaves. Calyxes covered with short tomentum. Petals imbricate. (Don's Mill., i. p. 314.) A native of the south of Europe, and readily distinguished from H. variegàtum by its upright habit of growth, and its lanceolate and acutely pointed leaves. The flowers are very variable in colour, scarcely two on the plant being alike; some are of a bright red, others nearly yellow, some coppercoloured, and others with a mixture of all these colours, and of the different shades between them; so that the plant, when in flower, has a curious variegated appearance. (Sweet.) |