HUTCHINSON—THE MADDENI SERIES OF RHODODENDRON. 47 
as much as I cm. long, usually shorter, setose and lepidote like 
the young stems. Inflorescence a 2--6-flowered terminal umbel ; 
bracts persisting during flowering, outer reddish, broad, rounded, 
glabrous outside, inside puberulous and whitely sericeous near 
the top, margin particularly over the summit fringed with 
dense short white stiff straight hairs, inner fertile bracts broadly 
spathulate the lower half grasping the flower-pedicel about 
1.5 cm. long, I cm. broad, chartaceous, the back finely puber- 
ulous the margin whitely ciliate as in the outer ones; bracteoles 
persisting during flowering as much as 1.3 cm. long slightly 
exceeding the calyx, linear-spathulate, densely pilose throughout 
on back and hair-crested with simple white stiff hairs and some 
twisting long setae, usually elepidote, occasionally one or two 
scales; pedicels at most 5 mm. long, setulose with twisting setae 
and also lepidote like the stems. Calyx leafy, about 8 mm. long, 
cut to the base into 5 membranous lobes; cup very densely 
lepidote with fleshy scales; lobes oblong, acute or obtuse, lepidote 
on back, glabrous inside, densely lanately setulose at margin, 
flabellate-veined. Corolla bright yellow, funnel-campanulate, 
about 3.5 cm. long, 5-lobed, puberulous with long hairs both 
outside and inside the entire portion, lepidote all over the 
outside, the scales glistening fleshy yellow or red ; lobes rounded, 
about 1.3 cm. long and broad, spreading, slightly crenulate and 
more or less scale-fringed. Stamens 10, unequal, shorter than 
corolla, longest about 2.8 cm. long with anther 3 mm. long, 
shortest about 1.8 cm. long with anther 2.5 mm. long ; filaments 
band-like, flattened from the base, white villous over one half 
in shorter, one third in longer stamens; anthers oblong, pink. 
Disk densely white puberulous. Gynaeceum about 3.2 cm. long, 
shorter than corolla, longer than stamens ; ovary conoid truncate 
about 3 mm. long, densely lepidote with larger red and smaller 
yellow fleshy scales ; style lepidote at the base, glabrous above 
expanding at tip into a lip around the lobulate discoid broad 
stigma. Capsule ovoid (? mature), lepidote outside, enclosed 
by the calyx. 
““YuNNAN. Shweli-Salween divide. Lat. 25° 20’ N. Alt. 
11,000 ft. In openscrub. Shrub of 2}-3 ft. Flowers bright 
yellow. G. Forrest. No. 15899; May-June 1917. In fruit. 
No. 16011; Nov. 1917. 
“A distinct species and best described as a yellow-flowered 
Rh. ciliatum, Hook. f. Not that it is RA. ciliatum in every respect 
save in flower colour. It shows many other differences. The 
readiest of recognition are these—the leaves are not setulose 
over the under-surface as in Rh. ciliatum and the corolla is lepi- 
dote and pilose not elepidote and epilose. Rh. caliatum is without 
doubt the nearest ally of Rh. Valentinianum, and in habit the 
