BALFOUR—NEW SPECIES OF RHODODENDRON. 95 
W. Yunnan. Type from Tengyueh. G. Forrest. [Without 
number. | 
W. Yunnan. Shweli-Salween divide. Lat. 25° 30’ N. 
Alt. 10,000 ft. In open ea Shrub of 6-8 ft. Flowers 
deep rose. G. Forrest. No. 15,673. June 1917. 
A species of the Ovatum series representing in the southern 
area of Western Yunnan Rh. leptothrium, Balf. f. et Forrest, of 
the northern area (Li-ti-ping and the Mekong-Yangtze divide), 
from which it is easily separated by its brighter green foliage, the 
leaves as a rule tapered into the long mucro not emarginate 
or truncate below it with a much closer ultimate reticulation 
of the veins, larger flowers, lobes of the calyx gland-fringed not 
hair-ciliate. 
wrt Rhododendron chaetomallum,* Balf. f. et Forrest.; (Haema- 
todes.) 
Shrub as much as 1.5 m. high with thin straight divergent 
twiggy beens those a year old about 2 mm. in diameter 
bearing rosettes of 4-6 leaves at the end, the last leaves of a 
year usually very small and ensheathing the terminal bud, 
leaves persisting often for two years. Branches of the year 
reddened densely clad with a bistrate indumentum, the upper 
stratum of long wavy intermingling bristle-hairs reddened below 
sometimes unbranched but usually ending in a tuft of short 
pointed branches the under stratum of white flocks of shortly 
branching intricately interwoven hairs, indumentum more or 
less detersile in the reddened twigs a year old but vestiges remain 
on the grey older parts of the branches until decortication, 
nodular swellings at end of each season’s growth which average 
about 5 cm. in length. Terminal foliage-buds ovoid pointed 
enclosed by the last foliage-leaves of the year which have long 
convolute vaginal petioles and much reduced lamina the whole 
* yaitn, loose flowing hair; wa//Adc, fleece—in allusion to the indumentum. 
+ Rhododendron chaetomallum, Balf. f. et Forrest—Frutex ad 1.5 m. altus. 
mi tenues stricti indumento bistrato setarum rubrarum et pilorum floccosorum 
obtecti. Alabastrorum timae longe caudatae mox deciduae. Folia 
petiolata ad 9.5 cm. lo na coriacea obovata vel oblongo-obovata ad 9 cm 
P ; 
fulvo-cinnamomea indumento bistrato tomentoso demum _ subagglutinato 
vestita ; petiolus circ. 5 mm. longus setulosus et floccosus. Umbella 4—6-flora 
pedicelli circ. 1.5 cm. longi setulosi cme ee Calyx ruber ad 3 mm. longus 
cupularis ; cupula glabra ;. Ob 5 undati fleccoso-ciliati decidui. Corolla 
chee See ee circ. 4 cm. ee poericearit glabra 5-lobata ; lobi lati 
margina Stamina 10 inaequalia corolla breviora, ima gynaeceo 
sendieek Raeeaes glabra. Discus glaber. Gynaeceum corolla multo brevius 
circ. 2.3 cm. longum; ovarium petasiforme circ. 3 mm. longum dense flavo- 
tomentosum; stylus glaber. Capsula recta circ. 1.5 cm. longa 7 mm. diam. 
dense tomentosa valvis 5—10 dehiscens. 
