294 



The Dictionary of Gardening, 



Rhododendron — continued. 



3iii. tu 5in. Imiff. piile beneath, li. 3ft. to 6ft. Mountains of 

 Snnthern Vniteil States, 1809. Hardy. (B. M. 1671.) 



R. caucaslcum (Caucasian). '^ jt. coryniliose ; coinlla ro-se-coloured 

 f'Utsiile, white within, spotted witli green at the throat, cani- 

 paiiulate-infundiljuliform. Aujiust. I. lanceolate, nvate, or 

 nearly dbuvate, slenderly veined above, beneath clothed with 

 niuch-adpressed. ferruginous tomeutum, the margins revolute. 

 Stems diffuse (ir decumbent. A. 1ft. Caucasus, 1803. Hardy. 

 (B. M. 1145.) The fcdlowing are handsome varieties of this 

 species : 



R. c. albiflorum (white-flowered). A hyluid with wliite flowers, 

 ntit so de.siraltle as the type. (B. M. 5811, under name of 

 li. c. hiihrldiiin.) 



R. c, flavidum (yellowish-flowered), jl. straw-colour, spotted 

 witli green. 



R. c, Nobleanum (Noble's), fl. of an intense rose-colour both 



uut^-ide dud within. /. oblong. 

 R. c. pulcberrimum (very pretty), ji. rose-colour. I. oblong. 



A pretty hyltrid lietween R. arborcum and R. cavcaaicuin. 



(B. R. 1820, luider name of R. pulcherrinmin.) 

 R. C. stramineum (straw-coloured). If. straw-colour, fulvous- 



sputted within. /. oblong. (B. M. 3422.) 

 R. ChamaecistUS (Chamjecistu-s). A synonym of Rhodnthamnus 



Chainacisfus. 



R. Championi (( "hampion's). fi. white, tinged with delicate rose- 

 coluur, or white with the upper lip pale yellow towards the 

 centre, and copiously dotted with ochre ; calyx hispid, deeply 

 cleft into four rather long segments ; corolla 4in. across, the tube 

 rather short, campanulate; stamens ten; umbels four to six- 

 flowered; jieduncles liisi)id. April. I. .shortly petioled, lanceo- 

 late, shortly aruniinate, reticuhitftl, flat, dark green above, rusty 

 beneath, where the margins, custa, and veins, are clothed with 

 short, bristly liairs. k. 7ft. Hong Kong, 1881. (B. M. 4609.) 



R. cUiatum (ciliated).* jl. pale reddish-purple, inclineil. in three 

 to many-flowered, terminal heads ; sepals veined, ciliated ; corolla 

 lAin. long, and nearly as much across; tubf rather contracted 

 below ; limb of five lobes, the upper one obscurely spotted. 

 May. I. elliptic, acuminate, coriaceous, 2in., rarely *3in., long, 

 sometimes obscurely cordate at the base; upper surface 

 (except in age) pilose, even villous when young ; beneath quite 

 glabrous, covered with minute, ferruginous scales. h. 2ft. 

 Sikkim. A small, more or less pilose or setose, hardy, rigid 

 species. (R. S. H. xxiv.) 



R, c. roseo-album (rose-and-white). /?. white, tinged with rose, 

 larger than in the type. (B. M. 4648.) 



R, cinnabarinum (cinnabar-red).* fi, rather small, nodding, 

 usually four to eight in a loose head; calyx segments of various 

 sizes; corolla brownish-red, with a long tube ; the lobes rounded, 

 spreading, and slightly acuminated ; stamens ten, included. 

 April and May. I. ovate or oblong-lanceolate, acute at both ends, 

 2in. to 3in. long. lin. wide, dull green above, ferruginous beneath. 

 Branches slender. Sikkim. 1851. Half-hardy. (R. S. H. viii.) 

 71. Hoi/lci (R. S. H. vii.) is nearly allied to this. 



R, citrlnum (citron-coloured), fi. drooping, fragrant, rather 

 small, umbellate ; calyx shortly tive-lobed ; corolla pale lemon- 

 colour, more than 3in. long, campanulate ; limb of five nearly 

 erect, retuse lobes ; stamens five, included ; anthers deep orange. 

 May. I. on short petioles, spreading, the largest not more than 

 2in. long, elliptic-oblong, obtuse, glabrous, coriaceous, dark green 

 above ; beneath, paler, and dotted with minute, pale-greenish 

 scales. .Java. 1854. A small, stove species. (B. M. 4797.) 



R.Clivianum( Duchess of Northumberland's).* fi. white, slightly 

 tinged with pale pink, especially on the margins; within, pro- 

 fusely dotted with light purplish-red. A hybrid, believed to have 

 been produced between li. nrlion'inii and R. cafawhieniic. It is a 

 perfectly hardy, strong-growing plant, but is well worthy of 

 protection while in flower. (B. M. 4478.) 



R. dahuricum (Dahurian).* fi. rose-coloured, solitary or in 

 twos or threes at the tips of the branches, on short pedicels ; 

 calyx very shortly or scarcely five-toothed ; corolla rotate-cam- 

 jtanulate, not lepidotetL March. I. oval-oblong, nmcronulate, 

 glabrous, lepidoted. paler beneath, deciduous. It. 5ft. Dahuria, 

 1780. An erect, hardy species. See Fig. 567. (A. B. R. 4 : 

 B. M. 656; L. B. C. 1605.) 



R, d. sempervirens (evergreen), fi. of an intense purple. 

 I. persistent, dark green. (B. M. 1888 ; B. R. 194, under name 

 of R. (I. atro(ircnt>.) 



R. DalhousisB (i.ady Dalhousie's).* Kpiphytal Rhododendron. 

 fi. lemon-scented, three to seven in an umbellate head, the 

 spread of which is greater than that of the leaves ; calyx 

 large, deeply divided into five foliace<uis lobes ; corolla white, 

 with an occasional tinge of rose, 5iJin. to 4iin. long, and as broad 

 at the mouth, campanulate, much like that of Lilium candidum ; 

 lobes very broad, waved, spreading ; stamens ten ; peduncles 

 stout, nearly iin. long. April to July. I. few, patent or reflexed, 

 petiolate, 4Ain. to 5in. long, elliptic-obovate. olituse at base, 

 attenuated below into a more or less do>vny footstalk about Ain. 

 long, darkish-green, inclining to yellow above, beneath paler. 

 Stems clothed with reddish, papery bark. Branches spreading, 

 whorled. /;. 6ft. to 8ft. Sikkim, 1850. A straggling, half-hardy 



Rhododendron — rontinued. 



epiphyte, especially f(uind on Oaks and Magnolias. (B. M. 4718 ■ 

 F. a. S. 460; R. S. H. i. ii.) 



R. p. hybridum (hylirid). A hybrid between R. Daffi»u^i,r am\ 

 R. Jnniiii.siiiii. Tlie flowers are a.s large as those of the former, 

 but have derived a tinge of pink from R./annoNum ; the ciliated 

 calyx also resembles that <>f the latter species, while the leaves 

 are intermediate in size, and (juite glabrous. (B. M. 5322.) 



R. Edgeworthii (I^lgeworth's).* rf. showy, inclined ; calyx 

 large, of five deep, spreading, coloured lolies, very downy on the 

 l)a(k, the edges finely ciliated ; C(»rolla white, often tinged with 

 blush or pale yellow ; tube rather short, widening much at the 

 mouth ; limb more than 4in. across, spreading, of five nearly 

 equal h>be8 ; stamens ten ; peduncles terminal or axillary, usually 

 two or three together. .May and June. I. 2in. to 4in. long, 

 ovate-lanceolate. a<iite or suddenly acuminate, obtuse at l>ase, 

 the margins recurved, the upper surface singularly wrinkled from 

 impressed, reticulated veins; petioles about j'iii. long. Sikkim, 

 1851. Shrub with straggling branches, often peiiclulous upon 

 trees and rocks. The flowers are so fragrant that a few are 

 sufficient to scent a large room. (B. M. 4936; F. d. S. 797-8; 

 R. S. H. xxi.) 



R. eximium (choice). A synonym of R. Falconcri. 



Fig. 367. Flowering Br.\.nch of Rhododemirox daiuricim. 



R. Falconeri (Dr. Falconer's).* fi. white, numerous, rather small, 

 densely placed in small, globose heads ; calyx very minute ; 

 corolla of ten rounded lobes ; peduncles erect, elongated after 

 flowering. May. I. very coriaceous, Sin. to 12in. long. 5in. to 

 7m. wide ; upper aide glossy-green, fading to yellow on the 

 margins, which are quite plane ; beneath, except on the midrib 

 and reticulated veins, clothed with short, dense, pale ferru- 

 ginous down ; young leaves velvety-downy. Trunks two or three 

 from the same point, often 2ft. in diameter, h. 30ft. Sikkim, 

 1850. Half-hardy tree. (B. M. 4924 ; F. d. S. 477-80 ; R. S. H. x.) 

 SvN. R. eximium. 



R. Farrerse (Mrs. F'arrer's). fi. of a pale lilac-rose colour, ter- 

 minal ; calyx very shortly tive-lobed ; corolla campanulate, the 

 lobes spreading and undulated. March. I. coriaceous, ovate, 

 obtuse, mucronulate, slightly attenuated at base, reticulate- 

 veined, hairy on both sides, the margins slightly recurved and 

 ciliated ; petioles, as well as the branchlets. villous-pilose. h. 3ft. 

 China, 1829. Hardy. (S. B. F. G. ser. ii. 95.) 



R. ferrugineum (rusty-leaved).* Alpine Rose. fi. of a lieautiful 

 scarlet colour, marked with ash-coloured or yellow dots, disposed 

 in umbels ; calyx lobes five, sliort, ohtusc ; roiulla fnnnel-sliapfd. 

 May to July. I. oblong, attenuateil at buth ends. ghil>rou> and 

 shining above, thickly beset with ferruginous dots beneath, and 

 much resembling those of the Box-tree ; when yoxmg, ciliated, 

 with a few hairs beneath. /*. 1ft. Europe, 1752! Hardy. 

 (J. F. A. 255; L. B. C. 65.) 



R. f. albiflorum (white-flowered). A variety having white 

 flowers. (S. B. F. G. ser. ii. 258, under name of R. f. album.) 



R. formosum (beautiful).* fl. few, terminal ; calyx small, scarcely 

 lobed ; corolla white, slightly tinged with purple and yellow, 



