34 BALFOUR—NEW SPECIES OF RHODODENDRON. 
upwards through sometimes as much as one-third the length. 
Disk puberulous on ridges. Gynaeceum under 2 cm. long about 
equalling corolla and stamens ; ovary about 1.5 mm. long ovoid 
truncate grooved lepidote with translucent yellowish imbricate 
peltate scales epilose ; style tinted pink sparsely puberulous at 
the base slightly expanded under the discoid lobulate lipped 
stigma. Capsule pale brown densely lepidote oblong-ovoid as 
much as 9 mm. long and 4 mm. in diameter enclosed in lower 
half by the persistent calyx, dehiscing from apex to about middle 
by 5 valves. Seeds flattened oblong about 1 mm. long bright 
brown, integument striate, without wings or chalazal or funi- 
cular arils. 
E.N.-W.-Yunnan. Mountains in the N.E. of the Yangtze bend. 
Open scrub. Lat. 27° 45’ N. Alt. 10,000-11,000 ft. Shrub of 
3-4 ft. Flowers deep rose. G. Forrest. No. 10,435, July 1913; 
in open situations amongst scrub. Alt. 11,000 ft. In fruit. 
G. Forrest. No. 11,736. Oct. 1913. 
From seed collected by Forrest in 1913 under No. 11,736 
seedlings have been raised but have not yet flowered. 
This Forrestian plant belongs to that set of the Lapponicum 
series in which the under-leaf indumentum is composed of large 
uniform scales contiguous and concolorous giving a pale buff or 
tawny surface to the leaf. Of species showing the character 
Rh. cuneatum, W. W. Sm. is its nearest ally. The forms of that 
species have yet to be worked out. Its type was collected by 
Forrest on the eastern flank of the Likiang Range and later 
gatherings seem to show that the plant is somewhat variable. 
As a species Rh. cheilanthum can be readily diagnosed from Rh. 
cuneatum by the broad rounded apex of the smaller leaves bearing 
a small tuberculate mucro which is usually deflexed and hidden 
under the lamina, by the much brighter sheen of the indumentum 
and by the much smaller flowers—the corolla being under 2 cm. 
long whilst that of Rh. cuneatum is about 3 cm. long. The style 
in Rh. cheilanthum is also only about the length of the corolla 
and not as in Rh. cuneatum much longer than the corolla. The 
style in both is puberulous at the base. I was wrong in speaking 
of the glabrous style of Rh. cuneatum in a previous paper.* In 
the young leaves there is a difference. Whilst in Rh. cuneatum 
they are epilose in Rh. cheilanthum there are some hairs on the 
upper midrib and groove of the petiole and on the leaf-margin 
at the base. These marginal hairs may persist for a time and 
the newly unfolded leaves may therefore be ciliate at the base. 
* Notes, R.B.G., Edin., ix (1916), 312. 
