EAST NEPAL AND THE SIKKIM HIMALAYA MOUNTAINS. 95 



8. R. Maddeni. — Distribution and range : Bhotan (?) 

 and Sikkim — where it was found in the inner and drier 

 valleys only, and very rarely there, at 6000 feet ele- 

 vation. 



A shrub 6 to 8 feet high. Leaves abundant, of a coriaceous 

 substance but flaccid, 4 to 7 inches long, frequently pendulous. 

 Corolla Zh to 4 inches long, and as much across the limb, very 

 handsome, white with a faint blush chiefly on the upper lobe, 

 rather fleshy, but firm in substance ; in shape much more con- 

 tracted than is usual with the Himalayan species : the limb very 

 large, spreading, of 5 nearly equal, rounded, entire lobes, slightly 

 crenato-undulate at the margin, delicately but obscurely veined. 

 The foliage and flowers are faintly odorous. 



This species clearly belongs to the same natural group as R. 

 cinnabarinum ; from which, however, the very large white 

 flowers, the numerous stamens, and ten-celled fruit abundantly 

 distinguish it. 



9. R. ciliatum. — Distribution and range : Sikkim — > 

 9000 to 10,000 feet — in rocky valleys of the interior. 



This forms a small very rigid shrub, growing in clumps 2 feet 

 high, generally in moist rocky places. Odour faintly resinous 

 and pleasant. Corolla 1^ inch long, nearly as much across at 

 the mouth ; tube rather contracted below, limb 5-lobed, colour 

 pale reddish-purple; upper lobe obscurely spotted. Allied to R, 

 harbatum, but widely different in stature, habit, and the scattered 

 scales on the under surface of the leaves. I have not observed 

 it in other valleys than those flanked by snowy mountains, where 

 it is common, scenting the air in warm weather. The scales (as 

 in its congeners) are orbicular, sessile, attached at the centre, 

 formed of 3 concentric series of cells surrounding a central one, 

 in which a resinous fragrant oil is secreted. 



10. R. virgatum. — Distribution and range : Hhotan and 

 Sikkim— 1000 to 9000 feet— in damp valleys of the 

 interior. 



Under this I have included two species figured in the " Sikkim 

 Rhododendrons" which are perhaps only extreme varieties. Tlie 

 characters common to both are a slender twiggy habit, a height 

 of 3 to 6 feet, glaucous leaves, and a perfect identity in all 

 essential characters of inflorescence and fruit. The shape of leaf 

 is a variable one in all cases, as are the size and colour of flower, 

 upon which characters R. triflorum was founded. The latter is 

 by far the handsomer plant, and grows at lower elevations. The 

 following remarks apply to it : — 



