BALFOUR—NEW SPECIES OF RHODODENDRON. 231 
subspathulatae membranaceae circ. 8 mm. longae 3 mm. latae 
dorso lepidotae margine ciliatae intus puberulae; prophylla 
lineari-claviformia ramentacea extus lepidota margine ciliata circ. 
7 mm. longa vix i mm. lata calycem aequantia; pedicelli 
inaequales purpurei glabri circ. 4 mm. longi. Calyx poculi- 
formis fere ad basim 5-lobatus cupula rubida vel subviridi glabra 
lobis subaequalibus oblongis acutis vel obtusis vel rotundatis 
nunc subtruncatis membranaceis plus minusve rubidis dorso 
lepidibus laete viridibus obtectis margine lepidoto-fimbriatis et 
plus minusve minute ciliatis intus puberulis. Corollae tenuis 
circ. 1.5 cm. longae paullo obliquae tubus antice circ. 8 mm. 
longus extus glaber intus villosulus in limbum explanatum 5- 
lobatum expansus lobis subaequalibus rotundatis integris circ. 
5 mm. diam. Stamina ad 6 mm. longa filamentis fragilibus 
deorsum dilatatis glabris antheris oblongis circ. I mm. 
longis. Ovarium 1.25 mm. longum ovoideum lobatum plus 
minusve lepidotum subviscidum; stylus circ. 2 mm. longus 
cylindricus apicem versus expansus ibique stigmate lobato 
coronatus. 
Species ex affinitate Rh. nwaiensis, Balf. f. et Ward, gregis 
Cephalantht, alabastrorum perulis mox deciduis, inflorescentiae 
rhachi pubescente, pedicellis glabris, calycis lobis rubidis viridi- 
lepidotis margine lepidoto-fimbriatis, corolla extus glabra, 
stylo quam ovarium fere duplo longiore notata. 
Tibeto-Yunnan frontier. Ka-gwr-pw glacier. Scrub belt. 
Alt. 14,000 ft. Flowers yellow. Ward. No. 505. June 1913. 
A plant of the Cephalanthum series; distinguished from 
most of the series, excepting Rh. cephalanthum, Franch. itself 
and Rh. platyphyllum, Balf. f. et W. W. Sm., by the size of the 
foliage. Its leaves reach a length of 3 cm. The indumentum, 
too, is not so spongy as in typical members of the series, in this 
resembling one of its allies in the series Rh. nwaiense, Balf. f. et 
Ward from a more southern station. From Rh. nwaiense, 
its nearest relation, the following are other diagnostic 
marks :—The scales of the vegetative bud are early deciduous, 
the inner bracts are much larger, the bracteoles equal in length 
the calyx, the pedicels are glabrous, the reddish calyx-lobes have 
curious green scales on the back and the margin is fringed with 
scales and has also a few short cilia, which may be the stalks 
of decapitated scales. See also what is said under Rh. nwatense, 
Balf. f. et Ward, p. 252. 
_ The glacier valley in which Mr. Ward found this yellow- 
flowered Rhododendron yielded to him another new species, 
Rh. chamaetortum, Balf. {. et Ward, forming carpets at a higher 
altitude and possessing pink flowers. 
See also p. 316. 
