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162 BALFOUR—NEW SPECIES OF RHODODENDRON. 
ing to the series of Maddeni, which have small long-ciliate calyx 
and ten stamens, by which characters they are separated from 
the set of Rh. Maddeni, Hook. f. itself, in which the calyx 1s 
medium or small eciliate and the stamens eighteen to twenty 
or more, and also from that of Rh. Dalhousiae, Hook. f., which 
possesses a large more or less membranous calyx and ten stamens. 
Rhododendron sycnanthum, Balf. f. et W. W. Sm. 
Frutex ad 3 m. altus multo breviterque ramosus. Ramuli 
epilosi tenues, hornotini circ. I mm. diam. nigricantes sparsim 
albido-lepidoti, annotini vix crassiores brunnei nitentes, seniores 
albido-grisei mox decorticantes. Alabastrorum oblongorum 
pallide brunneorum acutorum perulae exteriores coriaceae 
semilunatae circ. 2.5 mm. longae 3.5 mm. latae intus glabrae 
extus lepidotae margine minutissime ciliatae intimae mem- 
branaceae obovato-spathulatae circ. 1 cm. longae apicem versus 
3 mm. latae subflavidae mtus glabrae extus apicem versus 
lepidotae margine sparsim ciliatae; folia juvenilia convoluta 
supra glaberrima subtus dense albo-lepidota margine sparsis- 
sime ciliata petiolo albo-lepidoto et ciliis paucis praedito. Folia 
petiolata ad 4.7 cm. longa ; lamina coriacea haud rigida oblonga 
vel oblongo-elliptica ad 4 cm. longa 1.8 cm. lata sursum et 
deorsum attenuata apice acuta vel obtusa corneo-mucronulata 
vel corneo-tuberculata margine cartilaginea paullo recurvata basi 
obtusa vel late cuneata supra luride viridis ex toto glaberrima 
(epilosa elepidota) superficie reticulata venulosa (in sicco), 
costa media erubescente paullo sulcata venis primariis utrinsecus 
ad 8 venularum reti paullo elevato, subtus pallidior glauco- 
viridis squamis paucis ex umbone lato convexo secretione rubra 
impleto institaque angusta brunneo-colorata dedificatis in 
foveolis haud profundis conspersis, intervallis latis inter squamas 
venularum reti nunc viridi nunc brunneo-colorato et papillis 
petasiformibus scintillantibus notatis, costa media carnea elevata 
Squamis sparsissime praedita ; petiolus circ. 7 mm. longus eru- 
bescens sparsim lepidotus supra sulcatus sulco omnino glabro. 
Flores 3-4 in umbellas veras terminales solitarias nec fascicu- 
latas dispositi; bracteae deciduae ignotae; bracteolae mem- 
branaceae anguste spathulatae circ. 1.2 cm. longae ad apicem 
2.5 mm. latae aureo-brunneae intus glabrae extus inferne 
puberulae superne dense aureo-lepidotae margine longe albido- 
ciliatae sine crista apicali ; pedicelli circ. 1.3 cm. longi purpurei 
subceraceo-glauci sparsim lepidoti sub flore haud obliqui. Calyx 
minutus cupularis lepidotus margine in lobos 5 rubros eciliatos 
circ. 2 mm. latos undulatus. Corollae lavandulaceo-roseae 
postice varo et maculis rubris notatae tubus infundibuliformis 
in imbum 5-lobatum obliquum explanatus extus lepidotus intus 
