270 BAaLFOUR—RHODODENDRON : 
nutans circ. 3 cm. longa genitalia includens basi carnosula sub- 
gibbosa, extus glabra intus puberula ; lobi 5 rotundati emarginati 
circ, 1.2 cm. longi fere 2 cm. lati. Stamina 1o brevia inaequalia, 
longiora circ. 1.7 cm. longa breviora circ. 8 mm.; filamenta 
puberula. Discus glaber. Gynaeceum breve circ. 2cm. longum; 
ovarium subcylindricum truncatum sulecatum circ. 4 mm. longuin 
glaberrimum ; stylus glaber subcrassus vix sub stigmate lobulato 
expansus. 
Western N.W. Yunnan. Mekong-Salween divide. Lat. 28° 
N. 12,000 ft. Margins of rhododendron and pine ‘forests. 
Shrub of 6-9 ft. Flowers white flushed rose with few crimson 
markings. Forrest 16,303. May 10918. 
Fine species. Wants the vandyke-brown upper surface of 
leaves in Rh. sigillatum and the leaves are more oboval and much 
more rigid and acuminately pointed. Indumentum hairs below 
are not quite the same, the larger are fewer, the whole deliquesces 
at first and then gets into an adprédsed pellicle. Calyx very 
different. 
ag \ Rhododendron ioanthum, Balf. f. 
Frutex ad 1 m. altus. Ramuli stricti, annotini circ. 2 mm. 
diam. purpurei lepidoti et minutissime pubercli, seniores ver- 
ruculosi. Folia petiolata ad 7.5 cm. longa; lamina crasse cori- 
acea rigida oblongo-ovalis ad 6 cm. longa 2.5 cm. lata (in speci- 
minibus siccis ; fortasse folia multo majora sunt si descriptio “a 
grandes feuilles’’ cl. Mairei recta est), sursum acuminatim attenu- 
ata hydathodo rubro apiculato terminata, margine cartilaginea 
subcordulata et crenis minutis notata, haat rotundata vel obtusa ; 
supra olivacea opaca granulosa squamis marcidis indistincte in- 
duta, costa media erubescente sulcata puberula, venis primariis 
uinpsecus ad 9 vix elevatis; subtus pallide fusca papillis epider- 
micis glaucis ceriferis tecta et squamis rufescentibus late dis- 
contiguis subimpressis vestita, squamarum diametro intervalla 
ex nte, squamis ipsis Becret adits latis subaequalibus 
umbonis annulo resinoso-infiltrato et instita lata membranacea 
fusca notatis, costa media elevata lepidota erubescente, venis 
primariis eee: petiolus circ. 1.5 cm. longus rubes- 
m 
fasciculatas dispositi; bracteae plus minusve persistentes 
exteriores crustaceae rotundatae vel ovatae dorso__lepi- 
dotae margine breviter albido-ciliatae: ; bracteolae filiformes 
ad 1.7 cm. longae a basi pilosae superne lepidotae ; pedicelli breves 
vix 1 cm. longi dense lepidoti. Calyx parvus cupuliformis 5- 
pi 1.5 mm. 1. longus extus dense lepidotus ; lobi triangulari- 
dei cupul: n aequantes squamo-fimbriati et minute ciliati. 
