258 BALFOUR—NEW SPECIES OF RHODODENDRON. 
aceae. Folia petiolata ad 10.5 cm. longa; lamina oblongo- 
elliptica ad g cm. longa ad 5 cm. lata apice rotundata abrupte 
rigide apiculata apiculo ad 1.5 mm. longo margine plana tenuis- 
sime cartilaginea basi rotundata vel subcordulata supra atro- 
viridis ad maturitatem glabra hic et illic pilorum juvenilium 
vestigiis aliquando notata costa media paullo elevata sulcataque 
venis primariis utrinsecus ad 15 impressis caeteroquin sub- 
tiliter areolata subtus pallidior olivacea opaca costa media 
erubescente prominula caeteroquin plana conspicue rubido- 
venulosa granulosa papillis ceriferis epidermicis petasiformibus 
pilisque minutis caulifloris flavidis vel rubris conspersis praedita ; 
petiolus validus ad 1.75 cm. longus glaber vel glandulis sparsis 
praeditus. Flores in umbellam vel racemo-umbellam ad 8-floram 
laxam dispositi rhachi circ. 5 mm. longa pilis longe stipi- 
tatis digitatim ramosis ramulis rubris tortuosis dense obtecta. 
Bracteae non visae. Pedicelli rubidi circ. 2 cm. longi glandulis 
rubris breviter stipitatis vestiti sub calyce expansi. Calyx 
crassus parvus 2.5 mm. longus ruber extus pedicello similis . 
rubro-glandulosus in dentes 5 late triangulares extus margineque 
rubro-glandulosos ad medium fissus. Corolla lutea circ. 3 cm. 
longa a basi vere campanulata intus fundo puberula extus 
eglandulosa epilosa lobis 5 rotundatis circ. 1.2 cm. longis 1.5 
cm. latis emarginatis. Stamina 10 inaequalia longiora vix 
corolla breviora filamentis deorsum latioribus et puberulis. 
Ovarium (siccitate) nigrum circ. 3.5 mm. longum glandulis 
rubris fere sessilibus (quasi in costa media cujusque carpelli 
tantum) sparsissime praeditum ; stylus glaber corollam paullo 
superans ; stigma parvum lobulatum stylo vix latius. 
Species olim cum Rh. selensi, Franch. confusa a qua corolla 
lutea staminibusque puberulis satis differt ; Rh. Wardii, W. W. 
Sm. aliquantum affinis sed calyce parvo, filamentis puberulis, 
stylo eglanduloso divergens. 
Yunnan. Marshy mountain meadows on the Mekong-Sal- 
ween Divide north-west of Tsekou. Lat. 28° 5’ N. Alt. r1,000— 
12,000 ft. Shrub of 2-4 ft. Flowers yellow. Forrest. No. 
5068. Sept. 1904. In Herb. Edin. 
Yunnan. Pére Monbeig. No. 12. In Herb. Kew. 
Rh. panteumorphum is one of those Chinese Rhododendrons 
possessing medium-sized leaves of a more or less elliptic shape, 
sometimes oblong elliptic, approaching rounded, with rounded or 
cordulate base and with funnel-shaped flowers in loose trusses, 
the styles always glabrous. All of them give promise of being 
effective garden plants. The under surface of the leaves in all 
of them appears to casual observation to be glabrous, but in 
them, as in such Himalayan forms as Rh. Thomsoni, Hook. f. 
and Rh. campylocarpum, Hook. f., the under surface is studded 
