106 BALFOUR—NEW SPECIES OF RHODODENDRON. 
set leaves, and its short style prevented its inclusion in Rh. 
telmateium and seemed to indicate that we had here a distinct 
species. Plants which flowered in 1918 at Caerhays Castle 
and also at Kew—and I am indebted to Mr. Williams and to the 
Director of Kew for trusses—supply conclusive evidence of its 
specific distinction. It gives promise of being one of the most 
attractive garden plants of the Lapponicum series. In the 
series its position is without doubt near Rh. telmaterwm—one 
of the subseries with contiguous scales in the under-leaf indu- 
mentum and punctulate with some darker scales. In addition 
to characters of difference from Rh. telmateium already men- 
tioned there is the 1-3-flowered inflorescence not a solitary 
terminal flower, the calyx is very much smaller, the corolla has 
an orange blotch in the tube, constantly 10 stamens with the 
filaments not purple but white with orange-coloured base. 
48 Rhododendron perulatum,* Balf. f. et Forrest.7 
Shrub about 1 m. high with thickish straight branches 
retaining for several years the dried scale-leaves of the foliage- 
buds. Branchlets a year old about 3 mm. in diameter densely 
tomentose with a persistent matted indumentum of long-stalked 
floccose hairs and stalked red glands, the indumentum persisting 
for several years on the branches as a white stratum; branches 
not nodulose. Outer leaf-scales of the foliage-bud crustaceous 
brown I or more cm. long 4 mm. more or less broad, acuminately 
tailed from a rounded base ‘carinate whitely tomentose with 
interlocking hairs on the ae and more or less glandular 
especially about the keel, margin ciliate with short-stalked 
fasciate hairs, inside tana or slightly puberulous, tail often 
* perula, the scale-leaf of a leaf-bud—in allusion to the persistent scale- 
leaves of the foliage-bud. 
Rh odendron perulatum, Balf. f. et Forrest.—Frutex nanus ad 1 m. altus. 
per annos plures perulati, annotini circ. 3 mm. diam. 
, mar 
ullo rugulosa glabrescens sed pilorum juvenilium vestigiis notata, costa 
ned sulcata sulco puberulo; subtus opaca fulva indumento persistente bistrato 
=— indute strati peaperi Pilis eneentie multi-ramosis curvatis intertextis, 
etiolus circ. 5 mm. longus glanduloso- 
tomentosus. Umbe 
ius ; ovarium “samadhi sulcatum dense glandulosum et pubescens 
subcristatum ; stylus basi puberulus. 
