210 BALFOUR—NEW SPECIES OF RHODODENDRON. 
juventute dense citrino-lepidota) porriginosa squamis peltatis 
inaequaliter stipitatis longioribus prolatis concoloribus umbone 
convexo plus minusve erubescente institaque late fimbriata 
praeditis (nunc paucis intensius coloratis punctiformibus) stratum. 
superficiale supra squamas inferas plurimas incoloratas con- 
struentibus costa media vix apparente; petiolus ad 4 mm 
longus furfuraceo-lepidotus. Flores albi in umbellam parvam 
capituliformem circ. 8-floram rhachi puberula et lepidota dis- 
positi; bracteae steriles coriaceae late ovatae carinatae obtusae 
extus fulvae dorso plus minusve lepidotae margine minute 
ciliatae mucronulatae ad 5 mm. longae fertiles subramentaceae 
obovato- “spathulatae circ. 7 mm. longae 3.5 mm. latae extus 
lepidotae margine apiceque ciliatae intus puberulae ; prophylla 
membranacea subspathulata calyci aequilonga minute ciliata 
dorso lepidota circ. 6 mm. longa 1.5 mm. lata; pedicelli circ. 
3 mm. longi lepidoti. Calyx circ. 4 mm. longus ad basim fissus 
lobis 5 inaequalibus oblongis obtusis vel subtruncatis erosis circ. 
2 mm. latis nunc per paria connatis viridibus membranaceis 
dorso margineque lepidotis eciliatis vel rarissime ciliis paucis ad 
apicem praeditis intus glabris. Corollae tenuis 1. 4 cm. longae 
obliquae tubus circ. 6 mm. longus extus glaber intus villosulus 
in limbum antice subrepandum postice suberectum sursum 
explanatus lobis 5 inaequalibus imbricatis rotundatis lobulato- 
crenulatis maximo circ. 6 mm. diam. Stamina inclusa circ. 
5 mm. longa filamentis supra basin incrassatis rau 
antheris oblongis circ. 1.5 mm. longis. Ovarium 5-lobatu 
circ. I.5 mm. longum dense flavido-lepidotum ; stylus vix I mm. 
longus clavatus stigmate lobato coronatus. 
Species Rh. cephalanthoidi, Balf. f. et W. W. Sm. affinis sed 
foliis juvenilibus esetulosis, adultis minoribus, indumento sub- 
foliari adulto compactiore, alabastrorum perulis brevioribus 
angustioribus, calycis lobis eciliatis vel ad apicem pilis paucis 
praeditis, corolla breviore tenui haud succulenta extus glabra 
recedens. 
Yunnan. Mountains of the Chungtien plateau. Alt. 12,000- 
13,000 ft. Lat. 27° 35’ N. Shrub of 3-5 ft. Flowers white. 
Foliage aromatic. Open cliffs and amongst boulders. G. 
Forrest. No. 10,652. July 1913. 
This oo plant is a near ally of Rh. cephalanthoides, 
Balf. f. et W. W. Sm., yet is different. The more close set in- 
dome on the under-leaf surface is characteristic, and of 
other distinguishing features the smaller corolla of thin texture 
and glabrous outside is easily observed. 
See also p. 315. 
