246 BALFOUR—NEW SPECIES OF RHODODENDRON. 
minusve lepidotum viscidum; stylus ovario paullo brevior 
glaber clavatus stigmate lobato coronatus. 
Species Rh. Sargentiano, Rehder et Wilson affinis sed 
fruticulus major et foliis longioribus, bracteis externis latiori- 
bus interioribus longioribus, corollae albae majoris tubo extus 
glabro diversa. 
unnan. Lichiang Range. Alt. 11,000-14,000 ft. Lat. 
27° 30’ N. Shrub of 2-5 ft. Flowers white, foliage aromatic. 
Alpine pasture, ledges and crevices of cliffs. G. Forrest. No. 
10,034. May 1913. 
An easily distinguished species of the Cephalanthum series. 
It stands somewhere between Rh. cephalanthoides, Balf. f. et 
. W. Sm. and Rh. Sargentianum, Rehder et Wilson, having 
the larger shrubby habit and elongated leaves of the first- 
named species, and possessing only a few of the persistent 
scales which are present in the last-named. It has a slightly 
fleshy corolla, lepidote on the outside as in Rh. Sargentianum, 
but the scales are restricted to a median patch on the under 
side of the corolla-lobes, and then the corolla is white not 
yellow. Other marks of distinction from Rh. Sargentianum, 
are its ovate not oblong outer bracts and its puberulous 
stamens. 
_ See also p. 316. 
ant Rhododendron megacalyx, Balf. f. et Ward. 
Arbor ramosa ad 7.5 m. alta. Rami annotini atrorubentes 
epilosi vestigiis squamularum albidarum conspersi vetustiores 
griseo-desquamantes. Alabastra oblonga acuta perulis externis 
epilosis eglandulosis rotundatis intimis obcuneatis apice rotun- 
datis omnibus intus glabris extus lepidotis. Folia breviter 
petiolata lepidota ad 15 cm. longa; lamina oblongo-elliptica 
apice rotundata verrucula incrassata terminata nec acuta nec 
acuminata margine cartilaginea vix revoluta basi obtusa supra 
glabra laete viridis foveis squamarum delapsarum vel vestigiis 
ipsarum notata costa media venisque primariis utrinsecus ad 
14 rubidis sulcatis infra pallidior subglauca costa media venisque 
primariis rubescentibus elevatis squamis superficialibus peltatis 
umbonem convexum annulo rubro et instita peripherica integra 
conspicua cinctum exhibentibus praedita caeteroquin papillis 
albidis baculiformibus et foveolis plurimis haud contiguis notata 
(foveola quaque squama peltata pallide umbonata annulo rubro 
institaque angustissima impleta) hic et illic squama majore 
superficiali eis costae mediae simili latius fimbriata punctata ; 
lamina juvenilis utrinque omnino ‘epidota squamulis paginae 
___ superioris imbricatis eis costae mediae inferae maturae similibus 
: squamulis paginae inferioris (ut ad maturitatem) haud —_ 
