242 ERICACEAE 



RHODODENDRON— continued 



R. arbutifolium. 4. May. Ls. lane, 2, dull dark green above, minute glisten- 

 ing silvery scales below. Fls. i, rose-coloured. Hybrid. 

 R. cinnabarinum. 10. May. Ls. ov., 4, metallic green above. Fls. i^, dull 



red, funnel-shaped, in terminal heads. East Himalaya. (Fig. 123 A.) 

 R. dauricum. 6. January-February. Ls. ov., i, rounded at end, dark glossy 



green above. Fls. i, rosy purple, saucer-shaped, solitary or in pairs. 



Manchuria. 

 R. ferrugineum. Rose des Alpes, Alpenrose. 3. June. Ls. lane, i|, glossy 



green above, rust-coloured scales below. Fls. ^, red, in terminal clusters. 



Alps. (Fig. 123 B.) 

 R. glaucum. 6. May. Ls. ov., lane, 3, dark dull green above, scaly white or 



brown below, margins recurved. Fls. i, rosy red, in terminal clusters. 



East Himalaya. 

 R. Hanceanum. 4. March. Ls. lane, 4, hard, slender-pointed, dark green and 



scaly above and below. Fls. i, white or yellow, funnel-shaped, petals 



deeply lobed. China, 

 i?. AmMfwm. Rose des Alpes, Alpenrose. 3. June. lAkQ R. ferrugineum, hut 



stems and Is. bristly. Alps. 



R. lepidotum. 2. June. Ls. ov., lane, i|, dotted with tiny scales. Fls. i, rosy 

 crimson, spotted, saucer-shaped, solitary or in few-flowered clusters. 

 Himalaya. 



R. moupinense. 2- March. Branchlets hairy. Ls. ov., H, leathery, ending m 

 minute point, dark green above, pale below. Fls. 2, white or pink with 

 purple or yellow spots, usually in 3-flowered clusters. China. (Fig. 123 e.) 



R. Nohleanum. See under {b). 



R. praecox. 4. March. Ls. ov., 2, dark glossy green, bristly above. Fls. 2, 

 rosy purple. Hybrid. (Fig. 123 d.) 



R. racemosum. 6. April-May. Ls. ov., i, white below dotted with brown 

 scales. Fls. i, pink, in axillary and terminal clusters. West China. 



R. yunnanense. 12. May. Ls. lane, 3, bright green above, hairy on margins, 

 slightly scaly on both sides. Fls. i|, pink with brown spots, in few- 

 flowered clusters. China. 



{b) Ls. felted or woolly on under surface 



R. campanulatum. 12. April-May. Bark peehng; branchlets hairless. Ls. ov., 

 5, green above, reddish brown below. Fls. 2, pale purplish pink or lilac, 

 in loose clusters. Himalaya. (Fig. 123 f.) 



R. caucasicum. 2. April-May. Ls. ov., 4, dark green above, red below, 

 stalk short. Fls. 2, yellowish white or pale lilac, in terminal clusters. 

 Caucasus. 



Variety sulphureum. Fls. sulphur-yellow. 



* R. coriaceum. 25. March. Ls. oblane, 10, dark green above, grey-white 

 below. Fls. I, white or rose-tinted with crimson blotch, in loose trusses, 

 stamens ten to fourteen. China. 



R. Falconeri. 30. March-April. Ls. ov., lane, 12, thick, strongly veined, 

 dark green and wrinkled above, rusty below. Fls. 2, 8-io-lobed, creamy 

 white with dark purple blotch at base, stamens twelve to sixteen. Hima- 

 laya. (Fig. 123 H.) 



R. fictolacteum. 30. April-May. Ls. lane, 8, dark green above, red below, 



