Rhododendron] LXIV. ERICACE.K 411 



B. Underside of 1. without glandular scales, calyx deeply lobed or enlarged 

 in fr. 



a Branches not woolly. 



1 1. K. barbatum, Wall. : Hook. f. Ehod. Sikkim t. 8. Himalaya, from Kumaon east- 

 wards, 8-12.000 ft. Naga bills 9,000 ft. A small or middle-sized tree, 1. glabrous, 

 green on both sides, acute, petioles, branchlets ami midrib beneath with long coarse 

 bristles. Heads dense, corolla deep red, ovary hairy, capsule % in. long-, hirsute. 

 15. R. Thomsoni, Hook. f. Ehod. Sikkim t. 12 (jR. Candelabrum, Hook, f . 1. c. t. 29). East 

 Nepal and Sikkim 11-13,000 ft. A large shrub attaining ir> ft.. 1. broadly elliptic, 

 obtuse at both ends, base often cordate, glaucous beneath, blade 3—4. pet. J-l in. 

 Calyx cup-shaped unequally lobed, enlarged in fr.. partly enclosing the glaucous 

 purple \ in. long capsule. Corolla deep crimson. 16. R. Hookeri, Xutt. Bhutan, 

 similar and possibly only a variety of 1">. L. oblong, underside with minute raised 

 ret iriilntf veins. Calvx e up. shaped, unequally Lobed. 17. R. Griffithianum, Wight Ic. 

 t. 1203 >l:. Aucklandii, Hook, f. Rhod. Sikk.'t. 11). Sikkim and Bhutan 7-9,000 ft. 

 A shrub, at times a middle-sized tree. 1. glabrous, oblong, base rounded, blade 4-9, pet. 

 1-H in. PI. large white with a pink tinge, calyx saucer-sliaped, margin nearly entire, 

 in fr. often unequally enlarged. Capsule 10 in. long, very w ly. 



(b) Branches woolly. Usually epiphytic. 



is. R. Edgeworthii, Hook. f. Rhod. Sikk. t. 21. Sikkim 7-9,000 ft. Bhutan. Branchlets, 

 pet [oles, underside of I., pedicels, calyx and capsule, while young, densely clothed with 

 rusty wool. L. mostly scattered, upperside glabrous but strongly rugose with the 

 deeply impressed nerves and veins. PI. white, sweet scented, calyx divided nearly 

 to the base, lobes obtuse, somewhat unequal, \ in. long, corolla 2-3 in. across. 19. R. 

 pendulum, Hook. f. Rhod. Sikk. t. 13, branches pendulous. 2- I ft. long. 1. mostly approxi- 

 mate at the ends .it branches, rusty-woolly beneath, blade 1-2, pet. J in. long. Calyx- 

 lobes obtuse, i in. long, rose-coloured, corolla white. 1 in. across, glandular 

 outside. 



I '. Underside of 1. with round appressed glandular scales. 



a Calyx-lobes short or obsolete, not enlarged in fr. 



'Jo. R. cinnabarinum, Hook. f. Rhod. Sikkim t. 8 : Gamble Ind. Timb. ed. ii. 186 (B. 



Roylii, Hook. f . Shod. Sikkim t. 7) Sikkim 10-12, ft. and higher. Bhutan. A huge 



shrub, I. glabrous and shining above, densely clothed beneath with glandular scales, 

 blade S I. pet. ;',-->; in. long, in i,| rib excurrent, see. n. visible on the upper side. Heads 

 with 5 8 tl.. pedicels | J in. long, calyx-lobes obtuse, usually short, sometimes the 

 upper longer, corolla orange or brick red. long aarrow-campanulate, almost tubular. 

 lobes ovate, acute, equal (Hooker's figure of R. cinnabarinum possibly represents a 

 different species with dense il. heads and the uppermost calyx-tooth linear, almost 

 subulate. If so, the species described above should be called R, Roylii i. 21. R. triflorum, 

 Hook. f. Rhod. Sikkim t. 19. Sikkim. Manipur 7 1.0,000 f t. Attains 8 ft., 1. closelj 

 -1 i 5 beneat b. Fl. fe\i . somel im.es solitary, corolla yellow . broad-campanulate, 1 '. 2 in. 

 across a1 th. 



22. F. Keysii, Xutt. Bhutan 8 10,000 ft, I., lanceolate, fl. on shorl axillary spur-. 

 corolla-tube cylindric, pale brick-red. 28. R. virgatum, Hook. f. Rhod. Sikkim t. 26. 

 Sikkim 7-9,000 ft. Bhutan. A shrub attaining 1 ft. with slender branches and 

 scattered oblong-lanceolate I. Fl. axillary, solitary or in pairs, pedicels sheathed at 

 the base bj imbricate coriai as deciduous bracts, corolla purple. 1 in. across at mouth. 



24. R. formosum, Wall. PI. As. Rar. t. 207. Panlaungpun, Kacbin. 



A shruli, 1. lanceolate, usually broadest above the middle, acute, glabrous 

 above, glandular scales beneath numerous, bul epidermis distinctly visible 



between them. Corymbs 2 5-fld., corolla white, widely funnel-shaped, 2 in. 

 across al moul b. 



Bhutan, Khnsi hills, often near streams, Cochin hills 7,600 ft. and Ruby M 

 ii trict, Upper Burma. Hills east of Toungoo I 7,000ft, Moolejil 6-6,500. Yunnan 

 l sunn ft. \',., N variable, two varieties may be noted: R. talicifalium, IChasi bills, 

 with linear-lanceolate I. R. Johmlonianum, Umi MSS., Naga and Manipur hills, 

 ii 9,000 ft., with elliptic I., the glandular scales approximating beneath, corolla with 

 pink streaks and dots. 25. R. Veitchianum. llo,,k. Tenosserim nills 1 7,000 ft. S 

 times epiphytic, is supposed to differ bj a larger corolla with a crisped crenulate 

 marg in, 



