War 
. 
268 BALFOUR—NEW SPECIES OF RHODODENDRON. 
vix I.5 mm. longi. Calyx circ. 3.5 mm. longus fere ad basim 
5-lobatus lobis oblongis aequalibus vel inaequalibus obtusis 
viridibus vel rubro-purpureis dorso margineque lepidotis 
ciliatis vel eciliatis. Corollae caesiae circ. 1 cm. longae extus 
lepidotae tubus latus poculiformis basi subventricosus circ. 
2 mm. longus ad faucem albo-villosus in limbum ampliatum 
patenter expansus disco circ. 2 mm. lato lobis oblongis undulatis 
circ. 6 mm. longis. Stamina ro corolla breviora filamentis 
pallide purpureis supra basim ad faucem corollae albovillosis. 
Ovarium pallide viride canescenti-lepidotum ; stylus glaber 
purpureus corolla staminibusque longior; stigma lobulatum. 
Capsula circ. 5 mm. longa calyce aucto inclusa 5-valvata. 
Species fastigiata foliis ellipticis supra atro-viridibus subtus 
brunneis squamis contiguis biformibus praeditis, corolla extus 
lepidota distinguenda. 
Yunnan. Dry ledges and clefts of limestone cliffs on the 
eastern flank of the Lichiang Range. Lat. 27° 10’ N. Alt. 
I0,000-11,000 ft. Spreading dwarf shrub of 2-3 ft. Flowers 
blue lavender, base of corolla white, non-fragrant. Forrest. 
No. 2181. May 1906. 
Yunnan. On ledges of limestone cliffs and humus-covered 
boulders. Eastern flank of the Lichiang Range. -Alt. 11,000 ft. 
Lat. 27° 30’ N. Shrub of $3} ft. Flowers purplish blue. 
Forrest. No. 5879. June 1gio. 
This species is very distinct within the Lapponicum series 
of Rhododendrons. Its short-twigged growth gives it a habit 
distinct from Rh. diacritum, Balf. f. et W. W.Sm., Rh. drumonium, 
Balf. f. et Ward, and Rh. telmateium, Balf. f. et W. W. Sm., 
with which by technical characters of indumentum and flower 
it may be associated. It is like these, one of a small group 
of Rhododendrons which have contiguous bicolour punctulate 
scales on the under-leaf surface which is here bright brown 
in tin 
See also p. 300. 
Rhododendron radinum, Balf. f. et W. W. Sm. 
Fruticulus nanus ravus ad 6 dm. altus parvifolius copiose 
ramosus. Ramuli hornotini circ. 1 mm. diam. squamulis longe 
stipitatis flavido-albidis porriginosi annotini griseo-fulvi stipitibus 
albidis squamarum decapitatarum setuloso-hirsuti tandem grisei 
decorticantes. Alabastrorum elongato-ovoideorum perulae per- 
sistentes externae angustae a basi lanceolatae acutae vel acumin- 
atae carinatae extus lepidotae margine ciliatae circ. 3 mm. longae 
I mm. latae interiores membranaceae ligulatae ad 6 mm. longae 
i mm. latae longe ciliatae. Folia angusta ad 2.4 cm. longa 
petiolata ; lamina lineari-lanceolata vel oblanceolata ad 2 cm. 
