BALFOUR—NEW SPECIES OF RHODODENDRON. 135 
nately long and short, longest about 1.7 cm. long with ovoid 
anther 1.5 mm. long; filaments at slightly widened base naked 
over about 1.5 mm., above base villous within corolla-tube. Disk 
puberulous below ovary. Gynaeceum about 2.1 cm. long much 
peltate membranous stalked scales, epilose ; style purple-red 
puberulous at base not expanding below the lobulate discoid 
narrow lipped stigma. 
.N.W. Yunnan. Mountains of the Chungtien plateau. 
Open rocky pasture and on the margins of pine forests. Alt. 
11,000 ft. Lat. 27° 30’ N. Shrub of 3-4 ft. Flowers purplish 
rose. G. Forrest. No. 12,665. July 1914. 
Rh. sclerocladum is one of the Lapponicum series and belongs 
to that set of them in which the under-leaf indumentum is com- 
posed of contiguous bicoloured scales—dark and pale—about 
equally intermixed. As the leaves olden here the number of 
the dark-coloured scales increases and the surface may acquire 
a rufescent nearly uniform aspect. The intermixture of scales 
—dark and pale-coloured—is not so uniform as in other species 
of the set and the under surface of the leaf may be described as 
somewhat blotched. The species to which Rh. sclerocladum 
seems to be nearest is Rh. rupicolum, W. W. Sm., from which 
the colour as well as the very marked zygomorphy of the corolla 
at once distinguish it. It is moreover a plant of different habit— 
a stiff erect scrub plant with hard woody branches with a tend- 
ency to elongate its subfloral buds into vegetative shoots before 
flowering is over and thus to conceal the flowers. 
OO cacdeuiicon serpens, Balf. f. et Forrest.* 
A woody creeping undershrub rising a few centimetres above 
the soil rooting freely from the stems, the stems glabrous fairly 
stout as much as 4 mm. in diameter when a year old clad more 
Suffrutex | ili 
* Rhododendron serpens, Balf. f. et Forrest. 2: ns 
Rami glabri alabastrorum perulis extimis persistentibus plus minusve vestiti. 
Folia ad 5.5 cm. longa; lamina crasse coriace 
a extus intusque glabra 5-loba ; 
aeceoque breviora ; filamenta puberula 
us. brevius ; Ovarium 
ideum pilis fasciatis tomentosum, eglandulosum ; stylus glaber. 
emaculata circ. 3 cm. long 
