152 BALFOUR—NEW SPECIES OF RHODODENDRON. 
yellow ; tube oblique decurved about 1 cm. long at the back 
7 mm. long in front somewhat fleshy very sparingly lepidote 
outside, villous with long hairs from below the middle to the 
throat inside; limb slightly concave, 5-lobed ; lobes rounded 
about 5 mm. in diameter elepidote. Stamens 5 included equal 
about 5 mm. long; filaments thin tapered to base finely pub- 
erulous in lower third: anther ovoid about 1 mm. long. Disk 
puberulous below ovary. Gynaeceum about 3 mm. long much 
shorter than stamens ; ovary dome-shaped about 2 mm. long 
grooved greenish densely lepidote with fleshy stalked different- 
sized whitish scales ; style stout one-half length of ovary clavate 
ending in a broad flat depressed lobulate stigma. 
S.E. Tibet. Tsarong. On Ka-gwr-pw, Mekong-Salween 
divide. Alt. 14,000 ft. Lat. 28° 25’ N. Open situations on 
cliffs and stony slopes. Aromatic shrub of 1-2 ft. Flowers 
white with tube yellow. G. Forrest. No. 14,334. July 1917. 
A species of the Anthopogon series closely allied to Rh. 
rufescens, Franch., from which it differs in the more densely 
lepidote young shoots, larger oblong or oblong-oval not obovate 
or suborbicular leaves, the longer petioles, inflorescence more 
densely flowered, calyx-lobes densely resinously scaly on back 
not glabrous or with a few hairs, corolla larger slightly lepidote 
not elepidote, staminal filaments puberulous not glabrous, 
Synaeceum shorter than calyx not equalling it in length. In 
the key to the species of the Anthopogon series given in a 
previous number of the Notes * I stated that the stamina] 
filaments of Rh. rufescens are puberulous. This is an error 
due to an admixture of flowers of two species amongst Soulié’s 
specimens. The staminal filaments are glabrous. 
Rehder and Wilson + refer two numbers—3455 and 3930— 
of Wilson’s collecting in W. Szechwan to Rh. vufescens pointing 
out however differences in the foliage—the leaves in Wilson’s 
plant “ being oval or elliptic-oblong ” not obovate or suborbi- 
cular as Franchet describes the leaves in his Rh. rufescens.” I 
find in addition that the flower is shorter and has a wider tube 
than in Rh. rufescens and the stamens are puberulous. Wilson’s 
plant may therefore be a distinct form in the phylum. My 
material is inadequate for a decision. 
Some modification is needed of what appears in Mr Millais’ 
book.f On p. 237 Rh. Sargentianum is given as a synonym under 
Rh. rufescens. On P. 238 Rh. rufescens is given as a synonym 
under Rh. Sargentianum. But Rh. rufescens and Rh, Sargentianum 
are distinct species. Further there is no record in Forrest’s 
. Pongnobant Bot. Garden, Edin., ix (1916), 286. 
+ Wilsonianae, i (1913), 503. 
t Rhododendrons (1917), 237, 238. 
