HUTCHINSON—THE MADDENI SERIES OF RHODODENDRON, 37 
11. Rhododendron Dalhousiae, Hook. f. Rhod. Sikkim, t. i, 
quoad icon. orig. in MSS., nec icon. ii. ed.; Hook. f. in 
Journ. Hort. Soc. Lond., vii. 77, 93 partim; Hook., Bot. 
Mag., t. 4718 (1853) ; FI. des Serres, v. 460-468 (1849) 
partim ; R. macrocarpus, Griff. Itin. Notes, 138. 
An epiphyte on tree stems, rarely on rocks. Branches rather 
elongated, the older ones reddish-purple and smooth; one- 
year-old branchlets rather closely lepidote and bristly towards 
the apex; axillary leaf-bearing buds quite small and still 
dormant at the time of flowering, the covering scales slightly 
lepidote outside and fringed with a few hairs. Leaves obovate 
or oblanceolate, rounded to an obtuse hardened apex, cuneate 
at the base, 7-15 cm. long, 2.5-6 cm. broad, firmly coriaceous, 
at first densely scaly above but soon becoming glabrous and 
dull, mostly somewhat glaucous below and rather densely 
lepidote, the scales very small and unequal in size, fleshy in the 
middle, with a narrow membranous fringe, about their own 
diameter (or slightly more) apart, the epidermis between the 
scales very densely papillous with rod-like papillae ; midrib 
raised on both surfaces, more prominent beneath and slightly 
lepidote, about 2 mm. broad at the base; lateral nerves about 
Io on each side and diverging from the midrib at an angle of 
40°—60°, forked and faintly looped towards the margin, prominent 
below but rather slender ; secondary nerves not visible ; petioles 
I-1.5 cm. long, almost terete, not grooved above, rather densely 
covered when young with scales which soon fall off, mostly 
bristly with long hairs. Inflorescence about 5-flowered, the 
pedicels arising from approximately the same level; flower- 
bearing buds ovoid, about 4 cm. long just before opening, the 
scales not or only very slightly lepidote outside but fringed 
towards the mucronate tips with soft short white hairs, appressed- 
villous within the apex; scars of the fallen scales very high 
and contiguous, straw-coloured ; pedicels 1-2 cm. long, softly 
pubescent and rather densely covered with small fleshy scales. 
Calyx about I cm. long, 5-lobed to nearly the base; lobes 
oblong or oblong-elliptic, rounded at the apex, up to 5.5 mm. 
broad, a little scaly towards the base, sparingly clothed about 
the middle. outside with a few delicate hairs, not at all ciliate 
on the margins. Corolla white, tinged with rose outside, frag- 
rant, about 9 cm. long, gradually funnel-shaped from a fairly 
wide base ; tube glabrous outside except for a few scales towards 
the base on the adaxial side, 6-8 cm. long, about 7-8 cm. in 
diameter at the mouth; lobes 5, broad, with undulate margins. 
Stamens to, slightly longer than the corolla tube; filaments 
broad, pubescent towards the base ; anthers large, about 1.3 cm, 
