RHODODENDRON CAMPBELLLA,, ziooe. m. 
Mrs. Campbell’s Rhododendron. 
Tas. VI. 
Arboreum, foliis coriaceis oblongo-l latis acuminatis basi cordatis supra glaberrimis subtus rufo- v.-ferrugineo- tomentosis marginibus 
recurvis, petiolis pedunculis calyceque furfuraceis, capitulis densifloris, calycis parvi lobis brevissimis, corolle puniceze intus maculate 
lobis 4: rotundatis integris unico (superiore) bilobo, staminibus 10, ovario pubescente 7-10 loculari. 
Tan. Sikkim-Himalaya, frequent: alt, 9,000-10,000 feet. #¥. April and May. 
This may be called a ¢ree, attaining, as it does not unfrequently, a height of forty feet, detected in various localities, at 
the elevation just mentioned above the level of the sea. On the summit of Tonglo it is the prevailing plant, and there, 
when in full flower, it exhibits a truly magnificent spectacle, gorgeous with scarlet heads of blossoms. So far as I could 
observe, the greater the elevation above the sea at which this species grows, the redder or more deeply ferruginous was the 
under-side of the leaf. This ferruginous tomentum, together with the obtuse and cordate base of the leaf, are the characters 
which distinguish it from 2. ardorewm, as the very different outline of the leaves does from R. Wilagiricum. R. cinna- 
momeum, Wall. (B. arboreum, var. of Lindley and De Candolle) differs in the white (perhaps not the normal) colour of the 
flowers, and in the two-lobed segments of all the lobes of the corolla. In the present species the peduncles, styles, and base 
of the filaments are red. 
Tas. VI. Rhododendron Camphellie. Fig.1. Calyx and pistil. 2. Section of ovary. 8. Stamen :—magnified. 
6. 
RHODODENDRON ARBOREUM, sw. 
Scarlet arborescent Rhododendron. 
Subarboreum, foliis coriaceis lanceolatis subacuminatis basi in petiolum attenuatis supra glabris subtus argentcis marginibus subrecurvis, capitulis densi- 
floris, bracteis sericeis, calycis parvi lobis brevissimis, corolla punicea fauce supra tuboque intus purpureo-maculatis, staminibus 10, ovario sericeo 
8-10-loculari. 
RuopopeENDKon arboreum. Smith, Hx. Bot. p.9.t.6. Lindl. in Bot. Reg. t.890. Hook. Ex. Fl. t.168. Don, Fl. Nep. p. 154. 
RuHopopENDRON puniceum. Roxb. F2. Ind. vol. ii. p. 409. 
Boorans. “ Hardw. in Trans. Asiat. Soc, vol. vi. p. 359.” 
Taz. Darjeeling, and along the Himalaya, extending east, we believe, according to Mr. Griffith’s notes, into Bootan, and west as far as the valley of 
the Chenaub, in long. 77°. (2. Thomson.) 
[We need not occupy our space with any description of this species. An excellent drawing of it, sent by Dr. Hooker as a new species 
from Darjeeling, proves to be the true 2. arborewm, the first, indeed, of the Indian Rhododendrons that was discovered. We can refer with 
confidence to the synonyms above-quoted, which is more than can be said of many that bear this name. The figure in English Botany, 
however, does not. exhibit the under-side of the leaf; and the purplish spots or dots are omitted by the Indian artist, from whose drawing the 
plate was copied. Dr. Lindley’s figure is very characteristic; but that by Dr. Greville, in the Exotic Flora, is particularly faithful. The 
distinguishing marks of this species are the almost exactly lanceolate leaves, more or less acuminated, tapering at the base into the footstalk, 
and clothed beneath with a compact silvery film, neither to be called silvery nor downy. Ep.] 
