4 THE. RHODODENDRONS 
Note. Difficult as it may be to define the characters of this species in words, yet we believe that no one can see 
our native specimens in the herbarium without feeling assured that it is a distinct species, and truly different 
from any found in the north of India. There is a peculiarity in the firm and hard texture of the broad foliage, 
with its strongly recurved margins, and the deeply impressed venation and opake green colour ; and a still stronger 
distinguishing mark is in the almost globose strobilus, formed by the scales of the united flowers while in young 
bud, and which is admirably represented in Dr. Wight’s plate above quoted. The nearest approach to this is 
in the Rhododendron from Adam’s Peak and other mountains of Ceylon, which, I believe, has never been 
described, though it has been considered, while there was believed to be only one ¢ree Rhododendron in India, as 
R. arboreum, and it is cultivated in nurseries under the name of 2. Zeylanicum. ‘This has darker foliage than 
R. Nilagiricum, and is much larger in all its parts. 
20. R. nobile, Wall. Cat. n. 1521 (not 2, which is R. Milagiricum). 
Has. Kamaon. Dr. Wallich. 
21. R. nivewm, Hook. fil.; arbuscula vage ramosa, cortice fusco rugoso, ramulis pubescentibus, foliis obovato-lanceolatis 
breve petiolatis obtusis v. subacutis super glaberrimis opacis subter petioloque tomento appresso niveo (rarius 
fuscescente) lanatis, capitulis densissimis, pedicellis brevibus, calyce obsoleto, capsulis oblongo-cylindraceis 
tomentosis utrinque obtusis 6-locularibus, valvis lignosis, seminibus pallidis. 
Has. Sikkim-Himalaya; rocky valleys and ridges, Lachen, Lachoong, and Chola; elev. 10-12,000 feet, not 
unfrequent. #7.? Hr. November. 
A small rugged-barked tree, having the habit and general appearance of 2. arboreum, with which and R. 
Campbellie it grows frequently intermixed, but may be distinguished, even at a distance, by the snow-white 
under-surface of the leaf. On a closer inspection this is seen to be caused by an appressed flocculent tomentum, 
occupying both surfaces of the very young leaf, and sometimes of a rusty-red hue. In the two quoted allies the 
the leaf is narrower and the whitish hue or silvery lustre of the under-surface of the leaf is not removable, and 
is generally shining. The upper surface of the leaf of this is opake, but in R. Campbellia, polished. Capsules 
of this shorter, more cylindrical, blunt, and straight. I have never known these species to pass into one another. 
The present inhabits a much higher elevation than that usually occupied by 2. arboreum. The flowers I have 
never seen. 
22. R. formosum, Wall., Pl. Asiat. Rar. vol. iii. p. 207. Hook. Bot. Mag. t.4457. BR. Gibsoni, Hortulan. 
Has. Mountains bordering on Silhet. Dr. Wallich, Mr. Griffith, and Mr. Gibson. 
23. R. campanulatum, Don, Wern. Trans. vol. iii. p- 409. Wail. Cat. n.756. Hook. Bot. Mag. t. 1944. 
Has. Gossaing-Than in Nepal; and Kamaon. Wallich, Hamilton. 
24. R. Wallichii, Hook. fil. Tas. V. 
Has. Sikkim-Himalaya ; on spurs and in valleys of the inner and outer ranges; clev. 11-13,000 feet. #V. June; 
Jr. October. 
< mPeees 9 ; : 
Note. Distinguished from R. cany tum by the cc calyx. Leaves ferruginous or olivaceous beneath, 
pubescent or villous. Capsules linear, slightly curved, nearly erect, woody, glabrous, an inch to an inch and a 
half long. Seeds pale. 
25. R. Wightii, Hook. fil. Tas. XXVIL. 
Has. Sikkim-Himalaya. Eley. 12-14,000 feet. 
