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BALFOUR—NEW SPECIES OF RHODODENDRON. =F 
cliffs. Shrub of 2-3 ft. Flowers bright lemon-yellow. G. 
Forrest. No. 14,356. July 1917. 
red flowers of Rh. sanguineum, Franch., and of Rh. haemaleum, 
Balf. f. et Forrest. Like Rh. cloiophorum, Balf. f. et Forrest, 
which has also yellow flowers, this species has the outer scale- 
leaves of the foliage-bud persisting on the nodular stems, and 
in Rh. cloiophorum finds its nearest affinity, differing from it in 
its possession of glandular pedicels and ovaries, setulose glandular 
smaller calyx, and puberulous staminal filaments. In the whole 
Sanguineum series Rh. citriniflorum is distinguished by its greater 
development of the upper stratum of the under-leaf indumentum. 
The long hairs. of the stratum form a conspicuous tomentum 
over the rosette-hairs of the under stratum. On p. 80 will be 
found reference to the distinctive characters of the Sanguineum 
series. 
Rhododendron cloiophorum,* Balf. f. et Forrest.t 
Dwarf shrub about i m. high with many straight thin some- 
what nodulose branches glabrescent almost glabrous with a few 
traces of juvenile hairs, annual growths short about 1 cm. long 
or a little more producing some 4-6 foliage-leaves rosette-fashion 
at the top and girt at base by the persistent outermost scale- 
leaves of the foliage-buds which remain for several years. 
Foliage-bud unknown. Leaves petiolate about 5.5 cm. long ; 
lamina leathery obovate as much as 5 cm. long 1.8 cm. broad 
obtuse ending in a conspicuous red hydathodal mucro, margin 
hardly cartilaginous nearly plane, base prolonged as a narrow 
wing on the petiole; upper surface olive-green opaque glab- 
* xJotopéoos, wearing a collar—in allusion to the refiexed calyx around the 
base of the corolla. 
+ Rhododendron cloiophorum, Balf. f. et Forrest.—Frutex nanus circ. I m. 
altus multi-ramosus. Rami glabrescentes plus minusve nodulosi folia 4-6 rosu- 
1 ad api gerentes. Alabastrorum perulae extimae lus minusve per- 
sistentes. Folia petiolata ad 5.5 cm. longa lamina coriacea obovata ad 5 cm 
longa 1.8 cm. lata obtusa mucronulata, ma sub : n petiolum pro- 
pla: asi 
longata ; supra olivacea opaca glabrescens pilorum vestigiis notata ; subtus pallide 
tubus carneus basi septis interpetalinis incompletis divisus; lobi rotundati 
1.3 cm. longi 1.6 cm. lati emarginati. Stamina ro inaequalia corolla gynaeceoque 
breviora: filamenta glabra. Discus glaber. Gynaeceum circ. 3 cm. | 
corolla brevius; ovarium conoideum eglandulosum pilis longis floccosis dense 
tosuma ; stylus glaber. 
