178 BALFOUR—NEW SPECIES OF RHODODENDRON. 
polifolium (Soulié), fpsilostylum (Wilson), ramosissimum 
(Wilson), verruculosum (Wilson), Websterianum (Wilson), viola- 
ceum (Wilson). Is the plant described here as Rh. vicarium 
not one of these ? If not, how does it differ ? 
For future reference I will take those species successively in 
alphabetical order :— 
Rh. alpicolum.—Is an intricately branched plant not virgate 
as is Rh. vicarium. Note, however, var. strictum is virgate. Is 
one of the punctulate Lapponicums and has scattered rufous 
scales over the underleaf surface of flavescent contiguous scales 
not the nearly equal distribution of rufous and paler scales some- 
times hardly contiguous of Rh. vicarium. Its flowers are soli- 
tary but note in the var. strictum they are 2-3 in a truss. Its 
calyx has unequal oblong lobes 2 mm. long sparingly ciliate, in 
the var. stvictum equal all ovate and 1.5 mm. long, very different 
from the hardly developed about 0.5 mm. long calyx of Rh. 
vicarium which is eciliate and scale-fringed. Its corolla is funnel- 
shaped, glabrous outside, with a tube 4 mm. long and lobes 
broadly ovate or obovate whilst in Rh. vicarium the tube is cam- 
panulate 2.5 mm. long lepidote outside and the lobes oval or 
oblong-oval. Its ovary is conic not narrow cylindric. Its style 
is pilose at base with a capitate stigma, glabrous however in 
var. stvictum ; in Rh. vicarium glabrous with a discoid stigma. 
Its capsule is ovoid not narrowed oblong. Kh. vicartum cannot 
be placed in Rh. alpicolum. 
Rh. blepharocalyx.—Here we have a grey uniform shining 
tomentum, the corolla has a long tube and is elepidote, the 
stamens are 5, the style shorter than the ovary. Altogether a 
different plant. 
Rh. Edgarianum.—So far as underleaf indumentum goes that 
of this species shows sometimes an approach to that of Rh. 
vicarium but is more commonly uniform. Rh. Edgarianum has 
nearly globose not ovoid foliage-buds. Its leaves are broadly 
ovate or broadly oval and always under 1 cm. in length, in Rh. 
vicarium they are oval or oblong-oval or oblong-ovate and reach 
1.1 cm. long. Flowers are solitary not in pairs. Bracts are 
deciduous not persistent during flowering. Calyx is membran- 
ous purpling or yellow-green with 5 oval oblong obtuse or acutish 
lobes 2-2.5 mm. long and I-1.5 mm. broad and ciliate, below the 
middle lepidote ; very different from the minute lepidote and 
scale-fringed calyx about 0.5 mm. long of Rh. vicarium. Its 
_ corolla is funnel-shaped elepidote with a tube 5 mm. long and 
broadly ovate or obovate lobes not campanulate lepidote with a 
tube2.5mm.long. Its stamens 8not1o. Its ovary conic with 
a style longer than the stamens and bearing a capitate stigma 
not cylindric with style shorter than stamens and bearing a 
