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BALFOUR—NEW SPECIES OF RHODODENDRON, 157 
with thinner twigs and leaves which colour beautifully red in 
autumn. The scales on the leaf upper surface are contiguous 
and soon dry up, appearing as a dirty white or grey scurf on the 
older leaves. Occasionally the umbo of the scale has a resinous 
content, but the scales never stand apart as glistening spots on 
a shining green surface as they do in Rh. lepidotwm. The scales 
on the under-leaf surface, too, are closer set and usually more 
or less punctulate. The leaf-shape is always on the side of 
elliptic, whilst in Rh. lepidotum it is on that of lanceolate. The 
pedicels are shorter, the calyx is smaller and its lobes not so 
separate as they are in Rh. lepidotum. The broad rounded 
corolla lobes have one mid-vein, whilst in Rh. lepidotum the mid 
vein is accompanied by two lateral ones running up nearly to 
the top. The fruit is smaller. 
The species was introduced by Mr. Bulley by seeds collected 
by Forrest in 1906. From seeds presented to the Royal Botanic , 
Garden, Edinburgh, by Mr. Bulley, plants have been raised 
which first flowered in rgIo. 
Kingdon Ward collected in July 1912, under No. 905, on the 
cliffs and rocks of Ka-gwr-pw, at an altitude of 13,000-14,000 
ft., a crimson - flowered dwarf rhododendron which resembles 
closely Rh. sinolepidotum, but the petaline lobes are hardly in 
character for they are elongated ovate. There are other minor 
differences, possibly local divergences, from the specific type 
and giving no sufficient characters for separation. I mention 
the variation in view of a complete analysis of the Lepidotum 
series at some future time. 
Rhododendron stenaulum, Balf. f. et W. W. Sm. 
Frutex glaber ad 9 m. altus ramis virgatis folia quasi verti- 
cillata gerentibus verticillis fictis inter se distantibus incre- 
mentorum annuorum apicem notantibus. Ramuli annotini circ. 
2 mm. diam. pallide grisei glaberrimi. Alabastra foliorum 
ignota. Folia petiolata ad 17.5 cm. longa; lamina chartacea 
oblonga vel oblongo-lanceolata nunc lanceolata vel subobovalis 
ad 16 cm. longa 5 cm. lata apice recte vel oblique acuminata 
margine plana tenuiter cartilaginea pilorum detersilium pedibus 
nigricantibus obscure scabriuscula nunc ad basim praecipue 
pilis paucis subsetulosis praedita basi longe cuneato-attenuata, 
utrinque glaberrima nitens laevis, supra laete viridis costa media 
venisque primariis subpatulis intra marginem curvatis utrin- 
secus circ. 12 sulcatis, subtus pallidior costa media elevata viridi 
vel suberubescente pedibus pilorum juvenilium obscure et con- 
spersim notata venis primariis subimmersis venularum reticulo 
ultimo occulto; petiolus ad 1.5 cm. longus saepe erubescens 
supra anguste sulcatus lateraliter subscabriusculus vel setulis 
