BALFOUR—NEW SPECIES OF RHODODENDRON. II3 
Rh. recurvum is in cultivation raised from seed of Forrest’s 
No. 10,540. 
This species has been confused hitherto with RA. Roxieanum, 
G. Forrest. In habit and general form they are much alike but 
in addition to minor marks of distinction the easily-recognised 
points of difference are:—Rh. recurvum has funnel-shaped . 
corolla, a glandular and puberulous pedicel and calyx and a 
glandular ovary. Rh. Roxieanum has campanulate corolla, a 
tomentose pedicel, a finely puberulous calyx and a tomentose 
ovary and in all these parts has no such glands as occur in the 
other species. Judging by the specimens obtained by Forrest 
Rh. recurvum is the commoner species, and extends over the 
eastern area of N.W. Yunnan from the Kari Pass to the Chung- 
tien Plateau. Over this area it assumes in the highest district a 
more dwarf habit and all its parts become much smaller. 
One set of Forrest’s specimens, No. 13,005, presents us with 
a plant so different in appearance one might readily take it 
for a distinct species. The leaves are linear 5 cm. or less long 
and about 5 mm. broad recalling in a measure but for their 
pointed tips the foliage of Rh. proteoides, Balf. f. et W. W. Sm. ; 
the reduction in size of parts appears also in the flower which 
shows greater curvature and irregularity. No really diagnostic 
specific characters are to be found and one must regard this as 
an alpine dwarf state of Rh. recurvuum—var. oreonastes, if you 
please. In support of this Forrest’s specimen with the label 
“ Bei-ma-shan. _ Open situations amongst rocks. Alt. 12,000 ft. 
Lat. 28° 30'N. Shrub 3-4 ft. No. 13,536. Sept. TgI4 % shows 
us a form slightly larger than the alpine form and indicating 
as it were a transition to the alpine from the lower altitudes :— 
\S!0 Rhododendron recurvum, Balf. f. et Forrest, var. 
Oreonastes, Balf. f. et Forrest. 
Pedicels as much as 1.5 cm. long glandular with short-stalked 
ovoid orange-coloured glands and puberulous, obliquely ex- 
panded below the flower; bracteole much shorter than pedicel 
about 5 mm. long filiform densely pilose outside with curled 
white hairs apex hair-crested. Calyx a very small fleshy cup 
barely 1 mm. long showing 5 minute marginal teeth, whole 
calyx glandular and puberulous outside. Corolla about 2.5 
cm. long with a funnel-shaped tube about half its length, 
glabrous outside, puberulous inside, fleshy and prominently 
5-gibbous at base expanding into a deflexed 5-lobed limb ; lobes 
unequal, posterior largest about I cm. long and 1.4 cm. broad 
rounded thin crenulate emarginate. Stamens I0 unequal, 
longest about 1.8 cm. long with anther 2 mm. long, shortest 
about I cm. long with anther about 1.5 mm. long; filaments 
