CHAP. XXI. //YPEIIICA V CE/E. //YPE'RICUM. 399 



Sjvc. Char., $n: Stem round. Loaves sessile, lanceolate, numerous, without dots Peduncles dilated, 

 and somewhat compressed towards the apex. Calyx obtuse- Corolla and stamens mareeseent. 

 (Don's Mill., \. p. (SO','.) A deciduous muiershrub, from the Canary Islands in 177!', producing its 

 yellow Mowers in Augu>t. Height ,' ft It is usually treated as a green-house plant; but it is 

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

 protection. 



a. 6. II. OLY'MPICTM L. The Olympian St. John's Wort. 



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



Prod., 1. 515. 

 SynoniiHies. II. montis otympi IVliecl. It in., liny; H. orien- 



tale'fltVe ma jus To urn. 

 Knurat'inas. Sm. Exot. Bot , 2. t. !6. ; Bot. Mag., t. 18(57. ; and 



our Jig. 106. 



Spec. C/iar., Sfc. Stem round. Leaves elliptical-lanceolate, 

 rather acute, full of pellucid dots. Calyx ov;ite, acute. Pe- 

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

 Mill., i. p. tilt'J.) An interesting little shrub, with gl;.ucous 

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

 duced in 170U, and producing its yellow flowers from .Inly 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 //yptricum might be grown on a conical piece of rock work, 

 a sort of miniature Mount Olympus, in a warm sheltered 

 part of the pleasure-ground or arboretum. The protection 

 required in winter might 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 hurdles, or even, in warm districts, a few 

 spruce fir branches. 



* 7. H. CANARIK'NSE L. The Canary Island St. John's Wort. 



Identification. Lin. Syst. p. 57"). ; Dec. Prod., 1. p. 544. ; Don's Mill., 1. p. 602. 



Engraving. Lodd. Bot. Cab., 953. 



Varieties. De Candolle notices two : //. c. triph^llum, and H. c. salicifblium. 



Spec. Char., 8(c. Stem bluntly quadrangular. Branches compressed. Leaves ovate-lanceolate, acute. 

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

 the Canary Islands, introduced in 16119, and producing its yellow flowers from July to September. 

 Height 4ft. 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 Utter or leaves over the ground, and a couple of mats over the top. 



B. Styles commonly 5. 

 m 8. H. CHINE'NSE L. The Chinese St. John's Wort. 



Identification. Lin. Amrcn., 8. p. 323. ; Dec. Prod., 1. p. 545. ; and Don's Mill., 1. p. 602. 



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



Engraving. Mill. IllusL, 151. f.2. 



Spec. Char., fyc. Stem round. Leaves elliptical, 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 

 sublevergreen shrub, a native of the East Indies and the Cape of Good Hope : introduced in 175,5, 

 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 little protection. There is a species, named H. montgynum 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 

 Rox.y H. speciosum Wall.) is met with on hills at 3000 ft. of elevation. 



- 9. H. CORDIFO V LIUM Chois. The heart-leaved St. John's Wort. 



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



Synonymcs. II. braclealum, and //. J.unghsuui Ham. MS. in D. Don. Prod., p. 317. 



Spec. Char., <$-c. Stein round. Leaves elliptical, acute, coriaceous, smooth, somewhat stem-clasping, 

 without dot*; flower-hearing branches leafy below, crowded ISracteas ovate-cordate, acute. Sepals 

 ovate, mucronate, without dots. Pet.ils oblong, unequally sided, obl.quely mucromilate. Stamens 

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

 shrub from Nepal, in 1K25, producing its yellow flowers from April to October. Height 2 ft. It is 

 commonly kept in a frame, but would s'tand our winters, in a warm situation, with a very little 

 protection. 



* 10. 77. PA'TCLUM Thun. The spreading St. John's Wort. 



Identification. Thun. Jap., p. 295. t. 17. ; Don's Mill., 1. p. 603. 



Engraving. Thun. Jap., t. 1". 



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

 revolute margins, without dots. 1 'lowers corymbose. Styles recurved at the apex, scarcely longer 

 than the stamens. Peduncles bibracteate. Sepals sub-orbicular, very obtuse, t Don's Mt/l.,i : 

 An evergreen shrub, a native of Japan and Nepal, introduced in 1823, and producing its yelloir 

 flowers from June to August. Height fi ft. 



F F 



