260 BALFOUR—-RHODODENDRON : 
Folia petiolata ad 9 cm. longa; lamina crasse coriacea rigida ob- 
longo-ovalis vel obovalis ad 8 cm. longa 3 cm. lata, acuta mucrone 
inconspicuo terminata, margine crasse cartilaginea paullo  re- 
curva, basi cuneata saepe inaequilateralis ; supra purpureo-viridis 
opaca in modum squali corii rugulosa glabrescens sed pilis ves- 
tigialibus obscure notata, costa media anguste sulcata pilis al- 
bidis impleta, venis primariis utrinsecus circ. 12 paullo impres- 
sis; subtus fulva indumento bistrato crasso (ad 1 mm.) lanato ex 
toto vestita, pilis strati superi complanatis intricatim ramosis et 
intertextis, strati inferi parvis rosulatis; petiolus cire. I cm. 
longus crassus dense lanato-tomentosus. Gemmae florales glob- 
osae magnae bracteis exterioribus latis rotundatis dorso pilis 
albidis vel kermesino-scintillantibus glutinosis et glandulis 
rubris viscidis sub anthesi plus minusve persistentibus im- 
bricatim involutae. Flores in umbellas compactas globosas par- 
vas cire. 5 cm. diam. plurifloras dispositi; bracteae intimae 
oblongo-obovales sericeae ; pedicelli cire. 1 cm. longi dense lan- 
ati. Calyx  obsoletus undulatus. Corolla alba kermesino- 
maculata parva circ. 2.7 cm. longa zygomorpha campanulata 
subnutans extus glabra intus puberula; tubus carnosulus basi 
subgibbosus; lobi 5 rotundati emarginati circ. 1.5 cm. longi 2 
em. lati. Stamina 1o circa stylum aggregata inaequalia, 
longiora circ. 1.7 cm. longa, breviora 1.3 cm. ; filamenta puberula. 
Discus puberulus. Gynaeceum circ. 2 cm. longum corolla 
brevius staminibus longius; ovarium conoideum sulcatum trun- 
catum circ. 4 mm. longum sparsim floccosum; stylus glaber 
validus sub stigmate lobulato vix expanso haud _ incrassatus. 
Species phyli Rh. sphaeroblastt. 
S.W. Szechwan. Mu-li Mts. Lat. 289 12’ N. 11~—12,000 ft. 
In thickets and on open rocky slopes. Shrub of 3-6 ft. Flowers 
white with crimson markings. Forrest 16,376. June, 1918. 
This belongs to a type which seems to come from Mu-li only. 
The indumentum of the leaves is very thick persistent and of 
long interlocking hairs with an under stratum of short ones. 
The whole leaf is soft in consequence. Note also the glutinous 
buds. The flower-buds are remarkably large globose with broad 
overlapping outer bracts. Rh. sphaeroblastum is one of the type 
and there is another with bright red indumentum and narrower 
leaves which I have yet to describe. 
wus Rhododendron gloeoblastum, Balf. f. et Forrest. 
Frutex pauci-ramosus. Rami hornotini dense glandulosi, 
annectini glabri vel verruculosi circ: 4 mm. diam. Alabastra 
rubra glutinosa elongato-ovoidea ; perulae glandulis rubris dense 
; biodata folia revoluta involventes. Folia petiolata ad 9 cm. 
a; lamina coriacea ovalis vel elliptica vel obovalis ad 7. 5 « cm. 
