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142 BALFOUR—NEW SPECIES OF RHODODENDRON. 
puberula, lobis foliaceis submembranaceis oblongo-ovalibus 
apice rotundatis pallide viridibus elepidotis extus intusque et 
ad marginem praecipue ad apicem pilis albidis hirtis plus minusve 
praeditis. Corollae lacteae vittis 5 rubris circ. 5 mm. latis 
medio-petalis lineatae infundibuliformis crassae ad II cm. 
longae tubus extus pubescens elepidotus intus glaber basi 
angustus 5-gibbosus, 5-lobatus, lobis rotundatis circ. 2.5 cm. 
longis 4 cm. latis subundulatis nunc emarginatis. Stamina I0 
subaequalia circ. 9.5 m. longa corollae tubum paullo superantia, 
filamentis deorsum explanatis in parte triente infero longe 
villosis, antheris oblongis circ. I cm. longis 3 mm. latis atro- 
rubentibus. Discus sub ovario pilis erectis dense vestitus. 
Gynaeceum corollae aequilongum stamina superans; ovarium 
ovoideo-conoideum in stylum attenuatum circ. 8 mm. longum 
4mm. diam. squamis peltatis dense imbricatim rufo-furfuraceum 
vix sulcatum; stylus fere ad medium sigillato-lepidotus sub 
stigmate magno lobulato ampliatus et labium stylare formans. 
Species sectionis Maddeni aspectu primo corollae vittis 
latis rubris medio-petalis recognoscenda. 
Bhutan. Punakka. Alt. 8000 ft. On dry rock faces. 
Tree 12 ft. Flowers long cream with red lines outside. R. E 
Cooper. No. 3987. 29th May ro15. 
magnificent plant. Without doubt a microform of the 
type of Rh. Dalhousiae, Hook. f., but it has a much larger corolla 
and then the broad red bands on the outside of the corolla and 
in the median of the petals mark the plant at sight. These 
flower features are not the only differential ones. I find no 
trace of the surface bristles of the young leaves of Rh. Dal- 
housiae on those of Rh. rhabdotum, the upper surface of the 
mature leaves is smoother in Rh. rhabdotum, and the indumental 
scales are much more numerous. Specimens of what I take to 
be the true Rh. Dalhousiae, gathered in Bhutan by Cooper, are 
from a lower altitude—none over 6000 ft.—than are those of 
Rh. rhabdotum, which was found at 8000 ft. We have no fruit 
on Cooper’s specimens which were collected in May, and the 
introduction to cultivation of Rh. rhabdotum awaits the effort 
of some explorer in the future. 
«Rhododendron rhaibocarpum, Balf. f. et W. W. Sm. 
Frutex circ. 1.5 m. altus parvifolius ramis tenuibus strictis. 
Ramuli hornotini circ. 2 mm. diam. nigro-purpurei dense 
glanduloso-setosi quasi viscide hirsutissimi substrigillosi, indu- 
mento ex elementis biformibus composito primo e setulis plurimis 
longis et pilis brevibus sebaceis fuscis vel rubris vel aurantiacis 
glandula rubra clavata vel obovoidea terminatis, secundo © 
pilis eglandulosis aurantiacis vel rubris nunc longe stipitatis plus 
