An Encyclopedia of Horticulture. 



295 



Rhododendron— confinugd. 



large, sub-campanulate, with an angular tube. April. I. lanceo- 

 late, obtuse, shining above, beneath (as well as the outside of the 

 corolla) lepidote. Branches smooth, h, 3ft. tu 8ft. Eastern 

 Himalaya. 1815. (U. M. 4457.) 



R. Fortune! (Fortune's).* ji. pendulous, fragrant, loosely clustered 



in heads of eight to ten, on peduncles Mn. to lin. long; calyx 

 discoid, small ; corolla of a fine pale rose-colour, shortly campanu- 

 late, 3in. to 5Hn. in diameter, with seven rounded lobes ; stamens 

 fourteen. ^lay. I. Sin. to 7in. long, oblong or linear-oblong, 

 acute, bright green, but opaque above, glaucous below, acute, 

 rounded or cordate at base ; petioles reil-brown, iin. to lin. long. 

 Branches very stout, terete, h. 12ft. China, 1859. Hardy. 

 (B. .M. 5596.) 

 R. fulgens (l>rilliant). fi. on short pedicels, in dense heads ; 

 calyx ulisulete or vi-ry slmrt; corolla of a deep lirit;ht blood-red, 

 sonieuliai Ht-sliy. hi^lily polished and shhiinu, caiiipanulate, with 

 a slightly rom|uessed tvihe, and a liml) of five recurved lobes. 

 June. /. broadly obitvate or ovate-elliptic, rounded at apes, 

 cordate at base. 4in. long, 3in. broad, tolerably constant, coria- 

 ceous, glussv above, densely woolly beneath, the margins re- 

 curved. A. 4ft. Eastern Himalaya, 1851. (B. M. 5317 ; F. d. S. 789 ; 

 R. S. H. XXV.) 



R. glaucum (glaucous).* Jl. erect or inclined ; calyx deeply five- 

 parted, with leafy lobes; corolla pale pinkish-purple, above lin. 

 long, and about as broad, with a campanulate tube and a mode- 

 rately spreading limb of five emarginate lobes : stamens ten, 

 included. May. /. rather crowded at the tips of the branches, 

 lin. to 3in. long, usually lin. to l^in. broad, shortly petioled, 

 oblong <ir broadly lanceolate, obtuse, with a mucro, when old 

 naked above ; below glaucous, almost white, and dotted with 

 copious little .scales, which abound on young leaves, bracts, buds, 

 peduncles, and calyx segments, h. 2ft. Sikkim, 1850. Half- 

 hardy. (B. M. 4721 : F. d. S. 672 ; R. S. H. xvii.) 



R. ^ande (large).* n. white, 2in. to 3in. long, 2in. to 2iin. in 

 diametei- ; calyx very short, obscurely lobed ; corolla limb of 

 rather short segments ; stamens ten ; stigma swollen. March. 

 /. obovate-oblong, acute, attenuated intn the thick petioles, 6in. 

 to 12iu. long. Sin. to 5in. br()ad. nearly flat, glabmns, full green 

 above, silvery-white beneath ; when in bud, very li-aiitiful, erect 

 and silky, at first enveloped in large scales. 'J'vunks solitary or 

 two or three together, spreading, branched above, h. 30ft. 

 Sikkim. 1850. Tree. Sv.\. A', arqentevm (B. M. 5054 ; F. d. S. 

 473-6; R. S. H. ix.). 



R. Griffithianum Aucklandii (Cirifhth's, Lord Auckland's 

 var.). A synonym nf 7,", Anrlhtudii. 



R, birsutnm (hairy).* Alpine Rose. /. pale red or scarlet, 

 disposed in umliellate corymbs; calyx lobes oblong, obtuse; 

 corolla fnnnel-sliaped, the outside, as well as the calyx, having 

 resinous dots ; pedicels bristly. May to July. I. sub-elliptic, 

 rigid -ciliated, ferruginous-dotted beneath, glabrous on both 

 sides, h. 1ft. to 2ft. South Europe, 1656. Hardy. (B. M. 1853; 

 J. F. A. 98; L. B. C. 479.) 



R. Hodgsoni (Hodgson's), ff. delicate pale purple or rose-colour, 

 in heads 4in. to 6in. in diameter ; calyx obsolete ; corolla tube 

 liJin. long, broadly campanulate ; limb spreading, 2in. to 2J.in. 

 across, eight-lobed ; stamens sixteen to eighteen ; anthers dark 

 purple-brown. May and June. t. terminal on the ultimate 

 branches, spreading, 1ft. to 1 '.ft. long, oblong-elliiitic, dbuvate or 

 ovate-lanceolate, obtuse, nearly cnnlate at base, tliickly coriaceous, 

 glabrous and glossy-^Teen abi.ve, the margins recurved ; beneath, 

 except the midrib, clothed with pale silvery-white, rarely ferru- 

 ginous tomentum ; petioles very stout, lin. to 2in. or more long. 

 Bark pale flesh -colour, h. 12ft. to 20ft. Eastern Himalaya, 

 1851. A small tree, branching from the base. (B. M. 5552 ; 

 R. S. H. XV.) 



R. Hookeri (Hooker's).* Jl. red, in many-flowered corymbs ; calyx 

 ample, canijiaiiulate. obsoletely lobed ; corolla campanulate, with 

 five (it-i-itly bilnlied lobes; stamens ten. April. I. coriaceous, 

 highly glaljrous, rigitl, obhmg-oval, obtuse, long-stalked, rounded 

 at base, glaucescent I)eneath, 3in. to 5iin. long, lin. tol^in. broad ; 

 nerves furfuraceous-pubescent; petioles thick, lin. long. h. 12ft. 

 to 14ft. Bhotan. .\n erect species. (B. M. 4926.) 



R. jasminiflorum (Jasmine-flowered).* /. many, in terminal 

 umbels ; calyx ubscurely five-lobed ; corolla white, slightly tinged 

 with rose below the limb ; tube Sin. long, straignt, scarcely 

 gibbous at the base ; limb spreading, of five oliovate, wavy lobes ; 

 stamens ten ; anthei-s red. May. I. crowded towards the tips of 

 the branches ; lowermost ones sub-verticillate on short petioles, 

 obovate-oblong, rather acute, glabrous, nearly coriaceous, h. 2ft. 

 Malacca. 1849. (B. M. 4524 ; L. & P. F. G. i. 70.) 



R, Javanicum (.lavan).* fl. fascicled, eight to twelve or more, 

 large and handsome ; calyx very small, five-lobed ; corolla orange- 

 coloured, with scattered red spots, between funnel and bell- 

 shaped ; tube gi-adually widening upwards into a limb of five 

 nearly equal lobes ; stamens ten, slightly ascendent ; anthers 

 dark purple. All seasons. I. scattered, oblong-oval, or ap- 

 proaching obovate, acute, tapering into a short petiole, naked 

 above, beneath minutely dotted with very small, brown, peltate 

 scales. Branches spreading, h. 4ft. Java, 1847. (B. M. 4356 ; 

 P. M. U. XV. 217.) 



R, Jenkinsii (Jenkins'). Jl. white, four to six in a corymb ; calyx 

 segments short ; corolla lobes sub-etiual, rounded, obtuse ; style 



Rhododendron — continued. 



very long. I. shortly petioled, oblong-lanceolate, acute, cuneate 

 at base, 4iu. to 5--,in. long, lin. to l^in. broad, glaucous and densely 

 scaly beneath, 'fi. 6ft. to 7ft. Bhotan. (R. <_!. is. 277.) 



R. kamtschaticum (Kamtschatka). ,/f., calyx lobes oblong, 

 leaf-like ; corolla purplish-reil, striped inside with dark pui'ple. 

 nearly l^in. in diameter, the lobes obtuse and not callous at the 

 apex. July. /. oval, slightly acute, reticulated, five-nerved, 

 naked, ciliated. Kamtschatka, North America, Ac, 1802. A 

 procumbent, hardy sub-shrul>. (L. & P. F. G. i. 22, under name 

 of Ilhodi'thamnit-^ humjit.'^clialicus.) 



R, Kendrickii latifolium (Kendrick's broad-leaved). Jl. ten 

 to fifteen in a rather loose, globose head ; calyx of five small 

 teeth; corolla bright scarlet, broadly campanulate, equally five- 

 lobed ; stamens ten. Spring. I. 4in. to 6in. long, about lin. 

 wide, generally undulated on the margins, more or less whorled, 

 .■;ie.-n tin Imth surfaces; ynung imes (and other parts of the 

 plant) clothed witli reddish, glutinous hairs that disappear 

 in age. Trunk 7in. to 8in. in girth. Bhotan, 1859. Hardy. 

 (B. M. 5129.) 



R. Keysii (Keys'). Jl. red, yellow, small, five or six in a corymb ; 

 calyx five-toothed ; corolla tubular or urceolate, the lobes ovate, 

 obtuse ; stamens ten ; filaments exserted. July. I. 2iin. to 3in. 

 long, about lin. broad, ovate-lanceolate, acute, glabrous, glaucous 

 and scaly beneath, h. 2Et. to 6ft. Bhotan, 1851. (B. M. 4875: 

 F. d. S. 1110.) 



R. lanatum (woolly).* jl. rather large, inclined, in terminal 

 corymbs of six to ten ; calyx minute, five-toothed ; corolla yel- 

 lowish-white or pale sulphur-colour ; tube broad-campanulate, 

 within, above, and three of the upper lobes in part, red-dotted ; 

 limb 2in. to 2iin. across, of five very spreading, entire lobes. 

 June. I. at the tips of the branches, 3i^in. to 5in. lonu, about 2in. 

 broad, obovate or elliptical, obtuse, shortly mucronate, rather 

 acute, or at most obtuse, at the base ; under surface, as well as 

 ultimate branchlets, peduncles, and petioles, covered with ad- 

 pressed, white or t:iwny, cottony tomentum. Trunk 6in. in 

 diameter. Sikkim, 1851. A large .shrub or small tree. (F. d. S. 

 684; R. S. H. xvi.) 



R, lapponiCUm(Laidand). y/. violet-purple, few in an umbel ; 

 corolla iqiL-n bell-shaiied. dotted, with a short tube and a rotate 

 limb; stamens five to ten. July. I. elliptic, obtuse, Ain. long, 

 rigid, persistent, and, as well as the branches, dotted with rustv 

 scales. h. 6in. Arctic regions, 1825. Hardy, tufted shndi. 

 (B. M. 3106.) 



R. lepldotum (scaly).* /. on slender pedicels, lAin. to 2in. 

 long ; calyx lobes obtuse, somewhat leaf-like ; corolfa yellow or 

 purple, lin. across, lepidoted. especially on the outside of the 

 tube; upper lobes spotted with green ;* anthers large, rich red- 

 brown. May and June. I. obovate. lanceolate, or oblong, shortly 

 apiculate, petiolate, pale green, h. 2ft. to 4ft. Sikkim, 1829. 

 Half-hardy. (B. M. 4657; R. S. H. xxiii., under names of 

 A'. ehva{inoide-ii and H. salignum.) 



R. 1. chloranthum (yellow-fiowered). Jl. of a yellowish-green 

 roUmr, with green spots. (B. M. 4802.) 



R. 1. obovatum (nhovate-leaved). //. few, terminal; corolla 

 niaro(in-]iurple. lin. in diameter, salver-shaped; stamens usually 

 ci-ht, rarely ten. May. I. pale glaucous-gi-een, Ain. to l^in. 

 long, emitting a resinous odour, obovate. A stout or slender, 

 twiggy shrub, forming extended clumps 1ft. to 4ft. high, branch- 

 ing from a woody, ttn-tuous rootstock. (B. M. 6450.) 



R. Maddeni (Madden's).* /., calyx always small, five-lobed ; 

 corolla pure white, with a faint blush, chiefly on the upper lobe, 

 3;in. to 4in. long, and as much across ; tube sparingly lepidoted, 

 funnel-shaped ; limb very large, spreading, of five rounded, entire 

 lobes ; stamens eighteen to twenty, as long as the tube ; 

 peduncles about three, short and stout. Jime to August.' 

 I. abundant, elMptic-Ianceolate, acute or acuminate, 4in. to 7in! 

 long, gradually Uipering to rather short, ferruginous petioles, 

 frequently pendulous ; young ones entirely, perfect ones usually 

 beneath only, clothed with dense, white squamules, which 

 become feiruginous with age. h. 6ft. to 8ft. Sikkim 1850 

 Half-hardy. (B. M. 4805 ; F. d. S. 912 ; R. S. H. xviii.) 



R. malayannm (Malayan), jl. nodding, |in. long, in terminal, 

 few-rtftwered umbels, on short, curved peduncles; calyx minute] 

 five-toothed ; corolla dull scarlet ; tube ^in. long, gibbous at 

 liase ; limb fiat, horizontal, ?,in. to Mn. across ; stamens ten. 

 Sunnuer. I. 3in. to 4in. long, elliptic or elliptic-lanceolate, 

 acute at both ends, coriaceous, narrowed into a petiole \'m. to 

 :;in. long, dark green above, red-hrown beneath. Brandies red- 

 brown. Branchlets, leaves beneath, petioles, pedicels, calyx, 

 ovary, and corolla (sparingly), I'lothed with red-brown, lejiidote 

 scales. Malayan Archipelago, 1854. A large, stove shrub or 

 small tree. (B. M. 6045.) 



R. maximum (greatest). American Great Laurel. Jl. on viscid 



pedicels ; corolla pale rose-colour or nearly white, greenish in the 

 throat on the upper side, and spotted with yellow or reddish, lin. 

 broad, campanulate. July. I. elliptic-oblong or lanceolate- 

 fiblong, 4in. to lOin. long, very thick, acute, narrowed towards 

 the base, very smooth, with somewhat revolute margins, h. 6ft. 

 to 20ft. North America, 1756. Hardy shrub or tree. (B. iM 

 951.) 



R. m. hybridum (hybrid), ./f. fragrant, often as large as those 

 of li. ponticum ; corolla pale pui-plish, with acute lobes. 



