RHODODENDRON 



RHODODENDRON 



1523 



ored, spotted greenish within. Gt. 16:560. Var. stramin- 

 eum, Hook., is similar, but with fulvous spots. B.M. 

 3422. Var. roseo-album, Briot, with bhish fls., changing 

 to white, and var. spl6ndens, Briot, with deep pink fls., 

 are said to bloom very early and may be hybrids. R.H. 

 1868:^11. 



8. brachycirpum, Don. Shrub, 4 ft. high, sometimes 

 10 ft.: Ivs. oval to oblong, rounded at both ends, mu- 

 cronulate at the apex, bright green above, whitish or 

 ferrugineous-toraentulose beneath, 2V2-6 in. long: fls. 

 in dense clusters, short-pedicelled; calyx-lobes short; 

 corolla carapanulate, creamy white, spotted greenish 

 within, 13^-2 in. across. June. Japan. G.P. 1:293.— 

 Has proved quite hardy, but is yet rare in cultivation. 



9. M6tterniclii, Sieb. & Zucc. Shrub, 4 ft. high: Ivs. 

 oblong or oblong - lanceolate, narrowed at both ends, 

 acute or obtuse, ferrugineous-tomentose beneath, 3-6 in. 

 long : clusters 8-1.5-fld. ; calyx minute ; corolla cam- 

 panulate, 5-7-lobed, rose-colored, spotted purple within, 

 13^-2 in. across; stamens 10-14. May, June. Japan. 

 S.Z. 1:9. — Like the preceding hardy, but rare in cultiva- 

 tion. 



10. campanul^tum, Don. Shrub, attaining 16 ft. : Ivs. 

 elliptic to elliptic-oblong, usually rounded at both ends, 

 ferrugineous-tomentose beneath, 3-6 in. long: clusters 

 many-fld.; pedicels short: calyx -lobes short; corolla 

 campanulate, pale purple or pale lilac or almost white, 

 with few purple spots, 2 in. across. June. Himalaya. 

 B.M. 3759. L.B.C. 20:1944. S.B.F.G. 11. 3:241. Gn. 48, 

 p. 108.— This is one of the hardiest of the Himalayan 

 species. Var. serugindsum, Nichols. {B. ceruginosum 

 Hook. f. ). Lvs. with verdigris-colored tomentum be 

 neath. Var. Batemani, Nichols. {It. Bcitemani, Hook.). 

 Of more robust habit and with larger flowers. B.M. 

 5387. Var. Wallichii, Hook. Lvs. with lax, often cadu- 

 cous tomentum. and with densely woolly petioles: co- 

 rolla more highly colored. B.M. 4928. 



11. jasminifldrum, Hook. Small shrub: lvs. subver- 

 ticillate, obovate to oblong, acute, glabrous, lepidote be- 

 neath, 1/^-3 in. long: clusters many-fld.; pedicels 

 short: calyx minute; corolla almost salver-shaped, with 

 the tube 2 in. long and spreading limb, fragrant, white, 

 blushed outside below the limb, the anthers forming a 

 red eye; style shorter than stamens, included. Winter. 

 Java, Malacca. B.M. 4524. I.H. 6:203.— A distinct spe- 

 cies, very unlike other Rhododendrons ; it requires a 

 warm greenhouse. 



12. ferrugineum, Linn. Shrub, 2 ft. high, glabrous: 

 lvs. elliptic to oblong-lanceolate, acute, densely lepidote 

 beneath, 1-2 in. long: clusters many-fld.: calyx-lobes 

 short; corolla funnelforra -campanulate, with the tube 

 about twice as long as limb, pink or cannine, about % 

 in. across. June -Aug. Mts. of middle Eu. L.B.C. 

 1:65. Gn. 29, p. 358.— Dwarf, hardy shrub, handsome 

 for rockeries. Var. dlbum, Sweet, has white flowers. 

 S.B.F.G. 11.3:258. 



13. hiraCltum, Linn. Shrub, 3 ft. high, with hirsute 

 branches: lvs. oval to oblong, ciliate, light green and 

 glandular - lepidote beneath, K-1 in. long: clusters 

 many-fld.; calyx-lobes as long as ovary; corolla similar 

 to that of the preceding, lobes shorter. June, July 

 Alps. L.B.C. 5:479. B.M. 1853. -Much like the preced- 

 ing, but usually thrives better in cultivation and does 

 not dislike limestone soil. 



14. punctatum, Andr. (JR. m)nus, Michx.). Shrub, 6 

 ft. high, with slender spreading or recurving branches: 

 lvs. oval- or oval - lanceolate, acute at both ends, gla- 

 brous above, glandular - lepidote beneath, 2-5 in. long: 

 clusters rather few-fld.: calyx short; corolla broadly 

 funnelform, with obovate rounded and slightly undu- 

 late lobes, usually pale rose and spotted greenish with- 

 in, about 1 in. across. .June-Aug. N. C. to Ga. B.M. 

 2285. B.R. 1:37. Hardy. -Var. dlbum, Hort. Fls. white. 



15. arbutifolium, Hort. (R. dapJinoldes, Rdmmondi, 

 and olecpfoliuw, Hort. i?. Wilsoni, Hort., not Nutt.). 

 A hybrid of /(*. ferruginenm and pnnctat\im. Dense 

 shrub, 4 ft. high: lvs. elliptic to elliptic -lanceolate, 

 acute at both ends, l>2-3 in. long: fls. similar to those 

 ot S. ferrtigineunifhut larger. June, July. — Of garden 

 origin. Handsome hardy shrub, perhaps best known 

 under the name i?. WiLsoni ; this name, however, had 



been given previously to another hybrid between two 

 Himalayan species and should not be used for this 

 form. 



16. myrtifdlium, Lodd. (B. ovaUfolium, Hort. B. 

 ovdttcm, Hort., not Hook.). Hybrid between B. puncta- 

 tum and hirsutiim, much like the preceding, but lvs. 

 generally smaller and broader, less densely lepidote be- 

 neath, l-2>2 in. long, sometimes sparingly ciliate when 

 young: fls. longer pedicelled and calyx-lobes narrower 

 and longer. June, July. L.B.C. 10:908. — Originated in 

 the nursery of Loddiges. 





2110. Rhododendron Catawbiense (X 3^). 



17. Keiskei, Miq. Low, sometimes procumbent shrub: 

 lvs. elliptic to lanceolate, acute, dull green above, lepi- 

 dote beneath, 13^-3 in. long: clusters 2-5-fld. ; calyx 

 minute; corolla broadly funnelform, divided to the mid- 

 dle into rounded lobes, pale yellow, 13^ in. across; sta- 

 mens much exserted. May. Japan.— Hardiness not yet 

 determined. 



18. mucronulitum, Turcz. {B. DaJinricum, var. tnii- 

 cronuldtum, Maxim.). Upright shrub attaining G ft.: 

 lvs. elliptic to oblong, acute at both ends, slightly crenu- 

 late, sparingly lepidote on both sides, bright green above, 

 pale beneath: fls. 3-6, short-pedicelled; corolla funnel- 

 form, almost without tube, divided to the middle into 

 oval rounded lobes, rose-colored, 1-13^ in. across. March, 

 April. Dahuria, N. China, Japan. G.F. 9:65. — Hardy 

 shrub valuable for its very early fls. (it is the earliest of 

 all hardy Rhododendrons), and for its handsome scarlet 

 fall coloring. 



19. Dahtlricum, Linn. (Azdlea Daliurica, C. Koch). 

 Closely allied to the preceding but lvs. smaller, oval to 

 oval-oblong, obtuse at both ends, revolute at the margin 

 and ferrugineous beneath: fls. 1-3. March, April. Siber., 

 Dahur., Camschatka. B.M. 17:636. L.B.C. 7:605. G.C. 

 II. 17:295; 111. 12:701. — Var. semp6rvirens, Sims (var. 

 atrovirens, Edw.). Lvs. dark green, almost persistent: 

 fls.violet-purple. B.M. 1888. B.R. 3:194. L.B.C. 16:1584. 



20. precox, Carr. Hybrid between B, ciliatum and 

 Dahuricum. Low shrub with persistent, elliptic or oval 

 lvs., sparingly ciliate or glabrous, ferrugineous-lepidote 

 beneath, 1-2 in. long : clusters few-fld. : calyx-lobes 

 ovate, ciliate; corolla broadly funnelform, pale purple 

 or lilac, 13^ in. across. March, April. Of garden origin. 

 R.H. 1868:210. Gn. 38:761. G.C. II. 17:295; III. 12:771. 

 Less hardy than the preceding species but handsomer. 

 Here belongs also Early Gem, with larger pale-lilac fls. 

 and the lvs. somewhat more ciliate. G.C. II. 9:336. 



Great niimbers of names of Rhododendrons are to be found 

 in current literature, but the plants may be unknown in the 

 American trade. The following list will explain most of these 

 names. Some of them belong to Azalea, although they 

 may not be accounted for iinder that genus in this work. 

 Ji. Afghanicum, Hort., not Aitch. = R. CoU'ettiauum. — 7.'. 

 albiflorum. Hook. = Azalea albitiora. — Ji. album, Bhiim . 

 Small shrub: lvs. oblong-lanceolate, ferrugineous-lepidote be- 

 neath, 3-4 in. long: fls. rather small, campanulate, yellowish 

 white. Java. B.M. 4972. Tender.— J?. AUaclarense, Lindl. 

 Hybrid of R. arboreum with R. Catawbiense X Ponticum. Fls. 



