4 
Gila 
45.0 
BALFOUR—NEW SPECIES OF RHODODENDRON. Iqi 
color, Franch. and Rh. diaprepes, Balf. f. et W. W. Sm., having 
larger flowers than the former and smaller ones than the latter. 
It differs from both of them in its under-leaf surface, which 
always shows the purple reticulum of the ultimate venation 
although this is:submerged in the leaf-lamina. In both the 
other species the epidermal papillae are developed to a degree 
sufficient to mask the venation, and it is this which gives the 
very white aspect to the under-leaf, particularly in Rh. discolor. 
Rh. rasile is likest to Rh. diaprepes, and is readily distinguished 
by the eglandular under-leaf surface and the very glandular 
outer surface of the corolla. 
Rhododendron rhabdotum, Balf. f. et Cooper. 
Arbor parva ad 4 m. alta. Ramuli hornotini circ. 2. 
diam. squamis peltatis dense imbricatis membranaceis pallide 
fulvidis furfuracei et pilis longis stramineis setosi, annotini circ. 
3 mm. diam. rubidi fere esquamati setarum vestigiis vestiti. 
Alabastrorum perulae intimae in folia gradatim transeuntes ad 
ramos inter se distantes diu persistentes spathulatae subpetio- 
latae 2.5 cm. longae 8 mm. latae vel majores membranaceo- 
coriaceae apice obtusae mucronulatae dorso squamis peltatis 
rufo-furfuraceae ; folia juvenilia margine setosa utrinque lepi- 
dota supra squamis fere sessilibus latis uniformibus mox deter- 
silibus ex umbone fulvo parvo institaque multo latiore mem- 
branacea alba aedificatis induta subtus squamas fulvas biformes 
gerentia ; petiolus lepidotus et setosus. Folia petiolata ad 
I5.5 cm. longa ; lamina coriacea oblonga ad 14 cm, longa 4.7 cm, 
lata apice obtusa tuberculo-mucronata margine anguste carti- 
laginea paullo recurva setarum detersilium pedibus subasperata 
deorsum in basim obtusum attenuata utrinque concolor pallide 
viridis opaca, supra costa media basim versus elevata apicem 
versus sulcata venisque primariis utrinsecus circ. 10 paullo 
sulcatis pinnatim et curvatim adscendentibus notata caeteroquin 
laevis glabra sed squamarum juvenilium vestigia exhibens, 
subtus costa media lepidota venisque primariis elevatis, super- 
ficie rufo-lepidota et setis paucis conspersa, squamis breviter 
Stipitatis secretione rufa ex toto impletis umbone lato 
institaque angusta constructis biformibus (magnis paucis con- 
spersis) discontiguis, areis intersquameis epidermicis squamarum 
diametro multo latioribus et papillis longis baculiformibus 
ceriferis plurimis dense obtectis ; petiolus circ. 1.5 cm. longus 
vix sulcatus rubidus glabrescens sed squamis setisque vestigiatim 
notatus. Flores magni per paria ad apicem ramorum orientes ; 
bracteae bracteolaeque ignotae; pedicelli crassi circ. 1.7 cm 
longi 2 mm. lati rubri rufo-lepidoti et puberuli. Calyx cire. 
1.2 cm. longus fere ad basim 5-lobatus, cupula lepidota et 
