2944 



RHODODENDRON 



RHODODENDRON 



ties of this species are the following: Var. album, Rehd. 

 (R. ledifolium var. leucdnthum, DC. A. indica var. 

 alba, Lindl. R. leucdnthum, Bunge). Fls. white, some- 

 times striped pink. G.C. III. 33:373. Gn. 54, p. 487. 

 G. 6:607. Var. Noordtianum, Rehd. (Azalea ledifolia 

 Noordtiana, Wittm. A. japonica alba grandiflora Van 

 Noordt, Hort.). Fls. white, larger: Ivs. elliptic. R.B. 

 30:133. M.D.G. 1905:73, 74. Gt. 59, p. 310. G.W. 

 15, p. 45. Said to be the hardiest variety of this 

 species. Var. purpftreum, Maxim. Fls. rosy purple. 

 Var. narcissiflorum, Maxim. (A. narcissiflora, Fort.). 

 Fls. double, white, rarely purple. F. 1880:89. Var. 

 phceniceum, DC. (A. punicea, Sweet. A. ledifolia 

 var. phoenicea, Hook. A. indica var. calydna, Paxt.). 

 Fls. single, purple; calyx with linear, not serrate and 

 less glandular lobes. B.M. 3239. L.B.C. 18:1735. J.F, 

 3:257. Possibly a hybrid of this species and R. sub- 

 lanceolatum. R. ledifolium has produced, with A. 

 indica, a large number of beautiful hybrids, of which 

 one of the first was figured in 1833 as R. pulchrum. 



45. indicum, Sweet (R. macrdnthum, Don. R. 

 Danielsianum, Planch. Azalea indica, Linn. A. 

 macrdntha, Bunge. A. Danielsiana, Paxt.). Low. much- 

 branched shrub: Ivs. 



evergreen, elliptic to 

 lanceolate-oblong, ob- 

 tuse or acute, dark 

 green and lustrous 

 above, paler and 

 slightly strigose be- 

 low, 1-2 in. 

 long: fls. usu- 

 ally solitary; 

 sepals small, 

 ovate, ciliate ; 

 corolla funnel- 

 form, 2-3 in. 

 across, rosy purple to 

 pink; stamens 5-10, 

 anthers purple. June, 

 July. Japan. P.M. 

 1:129. Var. crispi- 

 florum, Schneid. 

 (Azalea crispiflora, 

 Hook.). Fls. large, 

 rose-colored, with dis- 

 tinctly crisped segms. 

 B.M. 4726. F.S. 9: 

 887. Var. lateritium, 

 Rehd. (Azalea indica 

 var. lateritia, Lindl.). 

 Fls. salmon- or brick- 

 red: Ivs. oblong- 

 lanceolate. B. R. 

 1700. Var. rosi- 

 fldrum, Rehd. (Azalea 

 rosiflbra, Flor. Mag. 

 A . balsaminseflbra, 

 Carr. A. Rollissonii, 

 Hort.). Lvs. oblong-lanceolate: fls. salmon-red, very 

 double, with imbricated oblong segms., resembling the 

 fl. of a camellia-fid, balsam. F.M. 19:418. Gn. 18:254. 

 R.H. 1882:432. F. 1878, p. 35. G.Z. 29, p. 265. This 

 species is the origin of most of the beautiful garden 

 forms of Indian azaleas raised by hybridizing with the 

 allied species, particularly R. Simsii and R. ledifolium; 

 many of the forms were intro. from Chinese and Japa- 

 nese gardens. Gn. 33, p. 139; 50, p. 192; 54, p. 487; 73, 

 p. 202. G.C. III. 24:101. R.B. 20:121; 23:37; 25:73. 

 A.G. 14:473. Gng. 4:359. F.E. 9:431. F.R. 2:579. 

 C.L.A. 7:479. Gn.M. 5:220. 



46. Simsii, Planch. (R. indicum var. Simsii, Maxim. 

 R. indicum var. ignescens, Sweet. Azalea indica, Sims, 

 not Linn.). Half -evergreen or evergreen shrub, to 10 

 ft.: Ivs. elliptic-ovate to elliptic-lanceolate, rarely lan- 



3393. Rhododendron 

 Kaempferi. (X 1 A) 



ceolate, acute, cuneate at base, sparingly strigose and 

 dull above, more densely so beneath, at least on the 

 veins, %-2 in. long: fls. 2-3, sepals ovate to lanceolate, 

 densely strigose and ciliate; corolla funnelform, lJ^-2 

 in. across, carmine or rose-colored; stamens 7-10; 

 anthers purple. May, June. W. China. B.M. 1480. 

 L.B.C. 3:275. The typical form has been recently 

 re-intro. by E. H. Wilson. 



47. Kaempferi, Planch. (R. indicum var. Kaempferi, 

 Maxim.). Fig. 3393. Shrub, to 12 ft. : Ivs. membranous, 

 deciduous, broadly elliptic to elliptic-ovate or nearly 

 rhombic, acute at the ends, bright green above, paler 

 beneath, strigose on both sides, with rufous hairs on 

 midrib and petiole, \\i-1Yi in. long: fls. 2-4 with or 

 before thelys.; sepals oval to oblong-ovate, obtuse, long- 

 ciliate, strigose outside; corolla broadly funnelform, 

 lJ^-2 in. across, bright orange-red to pink; stamens 5; 

 anthers yellow. April, May. Japan. S.I.F. 2:61. 

 C.L.A. 11:496. M.D.G. 1902:417. S.T.S. 2:113 

 Very handsome; hardy in New England. 



48. obtusum, Planch. (R. indicum var. obtusum, 

 Maxim. Azalea obtusa, Lindl.). Low, much-branched 

 shrub: Ivs. persistent, obovate, rounded and mucron- 

 ulate at the apex, dark green and lustrous above, stri- 

 gose on the midrib beneath, }^-l% in. long: fls. 2-3; 

 sepals ovate, small, ciliate; corolla funnelform, orange- 

 red or pink, 1-1 ^ in. across; stamens 5; anthers yellow. 

 May. Japan. B.R. 32:37. G.C. II. 25:585. R.H. 

 1876:370. Gn. 67, p. 190. Var. album, Schneid., (Aza- 

 lea obtusa diba, Hort.). Fls. white. G.F. 9:395. Var. 

 calycifldrum, Schneid. (Azalea calyciflora, Hort.). Fls. 

 brick-red, corolla double (hose-in-hose) . Var. amcenum, 

 Rehd. (R. amcenum, Planch. Azalea amoena, Lindl.). 

 Lvs. elliptic or elliptic-obovate, acute or obtusish, J^-l 

 in. long, dark green: corolla usually double (hose-in- 

 hose), purple, H~l m - broad; stamens 5; anthers often 

 purple. April, May. B.M. 4728. F.S. 9:885. G.C. 

 III. 23: fig. 125. A.G. 15:373; 18:568. Gng. 2:385; 

 11:289. A.F. 12:33; 20:751. F.E. 9:573. J.F. 4:329. 

 This variety, of which the wild parent plant is unknown, 

 seems to haye some relations to R. Simsii and may be 

 of hybrid origin. It flowers early and very abundantly; 

 hardy north to N. Y. There are some forms and 

 crosses of this variety of which the following may be 

 named: album, with white fls. M.D.G. 1903:476; Cald- 

 wellii, with larger purple fls. (Geert, Ic. Az. 18); G. 

 32:21; Marvel, lilac-carmine, double (F.M. 11; 14); 

 Princess Maud, rosy magenta (R.H. 1886:516); Mrs. 

 Carmichael, crimson-magenta; Princess Beatrice, bright 

 mauve; Prime Minister, soft pink; Miss Buist, pure 

 white; Hexe (Firefly), deep crimson. In Japanese gar- 

 dens a large number of named varieties of R. obtusum, 

 varying in shades from white to deep crimson, are 

 grown; one of the best known of them is Hinodigiri, 

 with brilliant crimson fls. 



Great numbers 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. The 

 number in parenthesis after the name refers to the section to which 

 the species belongs. R. adenopodum, Franch. (2). Shrub, to 10 ft.: 

 Ivs. oblong-lanceolate, with white crustaceous tomentum beneath, 

 3-6 in. long: fls. 4-6, campanulate, pale rose, 2J^-3 in. across; 

 pedicels glandular. Cent. China. G.C. III. 45:,291. R, afghdni- 

 cum, Hort., not Aitch.=R. Collettianum. R. Albrechtii, Maxim. 

 (Azalea Albrechtii, Kuntze) (5). Deciduous shrub, to 5 ft.: Ivs. 

 obovate or elliptic, pubescent, 3-5 in. long: fls. purple; stamens 10. 

 Japan. R. dlbum, Blume (1). Small shrub: Ivs. oblong-lanceolate, 

 ferrugineous-lepidote beneath, 3-4 in. long: fls. rather small, cam- 

 panulate, yellowish white. Java. B.M. 4972. Tender. R. altacla- 

 rense, Lindl. Hybrid of R. arboreum with R. catawbiense X R. pon- 

 ticum. Fls. bright crimson, in dense heads. B.R. 1414. B.M. 3423. 

 Not to be confounded with Azalea altaclarensis, Lindl. (R. sinense X 

 R. viscosum. B.R. 28:27). R. amblguum, Hemsl. (1). Shrub, to 10 

 ft. : Ivs. lanceolate, glabrous above, sparingly lepidote beneath, 2-3 

 in. long: fls. 5-7, broadly. campanulate, yellow, 2 in. across. W. 

 China. B.M. 8400. R. Amesix, Rehd. & Wilson (1). Allied to 

 R. yanthinum. Shrub, to 10 ft.: Ivs. elliptic to elliptic-oblong, 

 rounded at base, lepidote, villous on the midrib above, 2-3 in. long; 

 petioles setose: fls. 2-3, funnelform, l%-2 in. across, purple. W. 

 China. R. Annse, Franch. Lvs. lanceolate, coriaceous: fls. white, 

 medium-sized; corolla flat and disk-like. W. China. R. Antho- 

 pdgon, D. Don. Low shrub: Ivs. elliptic-oblong, ferrugineous- 



