BaLFouR—NEW SPECIES OF RHODODENDRON. 213 
radiatim ramosis conspersus ad apicem expansus et stigmate 
lobato coronatus. 
Species ad seriem Rh. barbati, Hook. f. pertinens foliis subtus 
pilis ramosis floccosim detersilibus praeditis, calyce subobsoleto, 
staminum filamentis puberulis, ovario styloque setuloso et piloso 
distinguenda. 
E. Upper Burma. Hpimaw. Scraggy tree of 15-20 ft. On 
steep limestone cliffs in half shade of gully at 6000-7000 ft. 
Flowers crimson scarlet. F. Kingdon Ward. No. 1851. 
31st July r9r4. 
A species of the Barbatum series, and from Kingdon Ward’s 
description of the flower-colour a desirable one for cultivation. 
The plant finds its nearest ally apparently in Rh. Smithii, Nutt., 
a Bhutan species introduced by Mr. Booth which flowered in 
Britain in 1859 for the first time. This RA. Smithii is quite 
a good species and is figured in the Bot. Magazine for 1859, t 
5120. It is one of the most frequent plants met with in gardens 
under the name RA. barbatum, Wall. Mr. C. B. Clarke * placed 
Rh. Smitha as a variety of Rh. barbatum. That he went so far 
as to allow to the plant this varietal rank whilst sinking in Rh. 
barbatum the Rh. lanctfolium, Hook. f. goes far to confirm its 
specific distinctness. Ward’s plant has the characteristic dendri- 
form hairs of the tomentum of the Barbatum series, and they 
fall from the leaf under-surface after the fashion of those in 
Rh. Smithti. To be sure the flower pedicels are much longer 
than in Rh. Smithit and the flowers are larger than in any 
Himalayan form of the series, but the plant is a good member 
of this alliance, and has the special interest from the standpoint 
of geographical distribution that it adds to the considerable 
body of evidence that is now accumulating which shows that 
the connection of the flora of East Upper Burma and South-West 
Yunnan with that of the Eastern Himalaya is closer than with 
the flora of North-West Yunnan and Szechwan. Of West 
Chinese species Rh. habrotrichum, Balf. f. et W. W. Sm. is the 
nearest known ally of Rh. agapetum. 
ugar Rhododendron argipeplum, Balf. f. et Cooper. 
Frutex circ. 2m.altus. Ramuli hornotini pallide virides setis 
atro-purpureis ad 8 mm. longis eglandulosis intertextis glandulis- 
que intermediis brevibus praediti vetustiores gradatim glabres- 
centes deinde cinerei decorticantes. Alabastrorum perulae ful- 
vidae rotundatae vel late ovatae crustaceae saepe emarginatae 
cire. 8 mm. longae annos plures persistentes extus viscidae. Folia 
ad 14 cm. longa petiolata ; lamina oblonga ad 12 cm. longa ad 
5-5 cm. lata apice abrupte acuminata tuberculo corneo terminata 
* Clarke in Flor. Brit. Ind. iii (1882), 460. 
