2940 



RHODODENDRON 



RHODODENDRON 



tomentose. May. Caucasus. B.M. 7495. R.H. 1899: 

 500. G.C. III. 20:15; 49:417. Gt. 35:1226. G.W. 16, 

 p. 147. M.D.G. 1909:356. 



19. caucasicum, Pall. Dense low shrub, 2 ft. high, 

 often with procumbent branches: Ivs. oval-oblong or 

 narrow-elliptic, acute, dark green above, ferrugineous- 

 tomentose beneath, 2-4 in. long: clusters 7-10-fld.; 



3384. Rhododendron brachycarpum. ( X H) 



pedicels short; calyx minute; corolla funnelform-cam- 

 panulate, with emarginate rounded lobes, pink to yel- ' 

 lowish white, spotted greenish within, \ l /% in. across. 

 June, July. Caucasus. B.M. 1145. A dwarf, quite 

 hardy species; late-flowering. Var. flavidum, Regel. 

 Fls. straw-colored, spotted greenish within. Gt. 16: 

 560. Var. stramineum, Hook., is similar, but with ful- 

 vous spots. B.M. 3422. Var. rdseo-album, Briot., with 

 blush fls., changing to white, and var. splendens, Briot, 

 with deep pink fls., are said to bloom very early and may 

 be hybrids. R.H. 1868:311. Also "Coriaceum" and 

 "Rosa mundi" (see p. 2932) are apparently forms of 

 this species. 



20. Metternichii, Sieb. & Zucc. (R. Hymendnthes, 

 Makinp. R. japonicum, Schneid., not Suring.). Shrub, 

 4 ft. high: Ivs. oblong or oblong-lanceolate, narrowed 

 at both ends, acute or obtuse, ferrugineous-tomentose 

 beneath, 3-6 in. long: clusters 8-15-fld.; calyx minute; 

 corolla campanulate, usually 7-lobed, rose-colored, 

 spotted purple within, l%-2 in. across; stamens 

 usually 14. May, June. Japan. S.Z. 1:9. G. 32:91. 

 Like the preceding hardy, but rare in cult. Var. 

 pentamerum, Maxim. Corolla 5-lobed; stamens 10 or 

 11. B.M. 8403. S.I.F. 2:60. Var. angustifdlium, Bean. 

 Lys. narrower, to 7 in. long: fls. pale lilac-rose: of 

 stiffly erect habit. 



21. brachycarpum, Don. Fig. 3384. Shrub, 4 ft. 

 high, sometimes 10 ft. : Ivs. oval to oblong, rounded at 

 both ends, mucronulate at the apex, bright green 

 above, whitish or ferrugineous-tomentulose beneath, 

 23^-6 in. long: fls. in dense clusters, short-pedicelled; 

 calyx-lobes short; corolla funnelform-campanulate, 

 creamy white, spotted greenish within, 1^-2 in. 

 across. June. Japan. G.F. 1:293 (adapted in Fig. 

 3384). B.M. 7881. G. 28:345. Has proved quite 

 hardy, but is still rare in cult. 



22. campanulatum, 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 funnelform-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. 

 Gn. 48, p. 108; 59, p. 294. G. 28:463. H.U. 1, p. 255. 



This is one of the hardiest of the Himalayan species. 

 Var. aerugindsum, Nichols. (R. seruginbsum, Hook. f.). 

 Lvs. with verdigris-colored tomentum beneath. Var. 

 Batemanii, Nichols. (R. Batemanii, Hook.). Of more 

 robust habit and with larger fls. B.M. 5387. Var. 

 Wallichii, Hook. Lvs. with lax, often caducous 

 tomentum, and with densely woolly petioles: corolla 

 more highly colored. B.M. 4928. 



23. ponticum, Linn. Shrub, 10 ft. high: Ivs. elliptic 

 to oblong, acute, pale green beneath, 3-5 in. long: clus- 

 ters many-fld.; pedicels longer than fls., puberulous; 

 calyx-lobes as long as ovary, the lower ones half as 

 long; corolla funnelform-campanulate with oval lobes, 

 purple, spotted brownish within, about 2 in. across; 

 ovary glandular. May, June. Spain, Portugal, Asia 

 Minor. B.M. 650. This species is less hardy than the 

 two preceding and now rarely found in cult, in its 

 typical form. Var. album, Hort., has white fls. There 

 are also varieties with variegated and one with purplish 

 Ivs. 



24. sutchueaense, Franch. Shrub, to 15 ft.: Ivs. 

 oblong-oblanceolate, usually obtuse, narrowed at the 

 base, dark green above, paler and glabrous beneath, 

 4-10 in. long; petioles stout, %-!}/ in. long: fls. many, 

 in a dense head; pedicels glabrous; corolla funnelform- 

 campanulate, 2-2 1/2 in. across, rose-colored, spotted 

 below the base of the upper lobes, lobes broad, rounded, 

 shorter than tube; stamens 13-15, shorter than the 

 corolla, anthers purple-black; style glabrous, as long 

 as the stamens; ovary glabrous. W. China. B.M. 8362. 

 Blooms freely as a small plant 2 ft. high. 



25. californicum, Hook. Shrub, 8 ft. high, some- 

 times to 20 ft., glabrous: Ivs. oblong, shortly acuminate, 

 pale green beneath, 3-6 in. long, sometimes crowded 

 beneath the fls.: clusters many-fld.; calyx minute; 

 corolla broadly campanulate, with oval crisped lobes, 

 rosy purple or pink, paler toward the center, spotted 

 yellow within, about 2 in. across, rich carmine in bud; 

 stamens 10, with purple anthers; ovary with appressed 

 silky hairs. May, June. Calif, to Brit. Col. B.M. 4863. 

 R. macrophyllum, Don, and R. washingtonianum, 

 Hort., are probably not different. 



26. catawbiense, Pursh. Figs. 3385, 3386. Shrub, 6 

 ft. high, rarely 20 ft.: Ivs. rounded at base, oval to 



3385. Rhododendron catawbiense. ( X l /4) 



oblong, usually obtuse and mucronulate, glaucous 

 beneath, 3-5 in. long: clusters many-fld.; pedicels rusty 

 pubescent; corolla broadly campanulate, with broad 

 roundish lobes, lilac-purple, about 1J^ in. across; ovary 

 rusty tomentose. June. Va. to Ga., in the mountains. 

 B.M. 1671. L.B.C. 12:1176. Gn.M.2:18. F.E. 17:312 

 (pi. 71). M.D.G. 1902:381. G.W. 4, p. 97. G. 37:391. 

 One of the most beautiful of native shrubs, covering 

 extensive tracts of land on the higher mountains of the 



