CHAP. XXI. 



J^YPERICA'CE,^:. ZTYPE'RICUM. 



399 



Spec. C/iar., 8;c. Stom round. Leaves sessile, lanceolate, numerous, without dots. Peduncles dilated, 

 and somewhat compressed towards the apex. Calyx obtuse. Corolla and stamens marcescent. 

 (Don's Mill., i. p. 602.) A deciduous undershrub, from the Canary Islands in 1779, producing it8 

 yellow tiowers in August. Height 3 ft It is usually treated as a green-house plant ; but it is 

 capable of resisting the winters of the climate of Loudon, in a warm situation, with very little 

 protection. 



it 6. H. OLY MPicuM L. The Olympian St. John's Wort. 



Identification. Lin. Sp., 1102.; Sm. Ex. Bot., 2. p. 71. ; Dec. 



Prod., 1. 545. ► 

 Synonymes. H. m6ntis olympi Wheel. Itin., Hay, H. orien- 



tkle fibre m&jus Tonrn. 

 Engravings. Sm. Exot. Bot., 2. t. 96. ; Bot. Mag., t. 1867. ; and 



avixfig. 106. 



Spec. Char., Sfc. Stem round. Leaves elliptical-lanceolate, 

 rather acute, full of pellucid dots. Calyx ovate, acute. Pe- 

 duncles bibracteate. Corolla and stamens withering. (Don's 

 Mill., i. p. 602.) An interesting little shrub, with glaucous 

 sessile leaves, native of Mount Olympus and China, intro- 

 duced in 1706, and producing its yellow flowers from July to 

 September. It 'grows to the height of from 1 ft. to 2 ft., and 

 requires protection during winter. All the half-hardy species 

 of i/ypericum might be grown on a conical piece of rockwork, 

 a sort of miniature Mount Olympus, in a warm sheltered 

 part of the pleasure-ground or arboretum. The protection 

 required in winter miglit be given with complete effect, and at 

 very little expense, by resting a number of poles on the pro- 

 truding points of the larger rocks or stones, and on these 

 placing thatched hurdle.s, or even, in warm districts, a few 

 spruce tir branches. 



« 7. H. canarie'-Nse L. The Canary Island St. John's Wort. 



Identification. Lin. Syst. p. 5/5. ; Dec. Prod., 1. p. 544. ; Don's Mill., 1. p. 602. 

 Engraving. Lodd. Bot. Cab,, 953. 



Varieties. De Candolle notices two : H. c. triphj^llum, and TI. c. salicifblium. 



Spec. Char., S(C. Stem bluntly quadrangular. Branches compressed. Leaves ovate.Ianceolate, acute. 

 Calyx ovate, obtuse. Styles 3—4, diverging. [Don's Mill., i. p. 602.) A neat little shrub, a native of 

 the'Canary Islands, introduced in 1699, and producing its yellow flowers from July to September. 

 Height ih. It is commonly kept in green-houses or frames ; but, like most of the other plants from 

 the Canary Islands and similar climates, it will endure a London winter in the open air against a 

 wall, with the protection of litter or leaves over the ground, and a couple of mats over the top. 



B. Styles commonly 5. 

 m 8. IJ. chine''nse L. The Chinese St. John's Wort. 



Identification. Lin. Ama?n., 8. p.S23. ; Dec. Prod., 1. p. 545. ; and Don's Mill, 1. p. 602. 

 Synonyme. H. monogynum Mill. Illust, 151. ; //. aiireum Lour. 

 Engraving. Mill. Illust, 151. f 2. 



Spec. Char., S{c. Stem round. Leaveselliptical,obtuse, with a few black dots. Peduncles bibracteate. 

 Calyx oblong, obtuse, beset with black dots. Styles collected together. (Don's Mill., i. p. 602.) A 

 sub-evergreen shrub, a native of the East Indies and the Cape of Good Hope ; introduced in 1753, 

 and producing its yellow flowers from March to September. Height 3 ft. It is marked in the 



' Catalogues as a green. house plant; it would, in all probability, endure the open air, with protection, 

 during winter. It stood at Biel, in East Lothian, in 1825, in an exposed situation. A species bear- 

 ing this name has stood against the wall in the garden of the London Horticultural Society, for four 

 years, with very littla protection. There is a species, named H. mondgynum L., not of Miller, which 

 is figured in Bot. Mag., t. 334., which appears to be different from this one. It is a native of Japan 

 and China, and grows to the height of 3 ft. In Nepal, a species nearly allied to this (H. cernuum 

 Box., II. specifjsum Wall.) is met with on hills at 3000 ft. of elevation. 



tt- 9. H. coRDiFO^LiUM Chois. The heart-leaved St. John's Wort. 



Identification. Dec. Prod., 1. p. 545. ; Don's Mill., 1. p. 602. 



Synonymes. H. bractektum, and H. LuiigTisum Ham. MS. in D. Don. Prod., p. 317. 



Spec. Char.,S(c. Stem round. Leaves elliptical, acute, coriaceous, smooth, somewhat stem-clasping, 

 without dots; flower-bearingbranches leafy below, crowded Bracteas ovate. cordate, acute. Sepals 

 ovate, mucronate, without dots. Petals oblong, unequally sided, obliquely mucronulate. Stamens 

 short. Styles unconnected, scarcely longer than the corolla. (Don's Mill., i. p. 602.) A sub-evergreen 

 shrub from Nepal, in 1825, producing its yellow flowers from April to October. Height 2 ft. It is 

 commonly kept in a frame, but would stand our winters, in a warm situation, with a very little 

 protection. 



m 10, pa'tulum Tkun. The spreading St. John's Wort. 



Identification. Thun. Jap., p. 295. 1. 17. ; Don's Mill., 1. p. 603. 

 Engraving. Thun. Jap., t. 17. 



Spec. Char., Sfc. Stem round, purplish. Leaves ovate-lanceolate, acute, tapering to the base with 

 revolute margins, without dots. Flowers corymbose. Styles recurved at the apex, scarcely longer 

 than the stamens. Peduncles bibracteate. Sepals sub-orhicular, very obtuse. (Don's Mill., i. p. 603.) 

 An evergreen shrub, a native of Japan and Nepal, introduced m 1823, and producing its yellow 

 floweTs from June to August. Height 6 ft. ' 



F F 



