ua 
Bond 
BALFOUR—NEW SPECIES OF RHODODENDRON,. 149 
that at sight one might assume that they were the same, but 
careful examination of them brings out so many differences that 
their specific union is not justifiable. A prominent feature of 
difference is the bristly covering of the stems when well developed 
in kh. pothinum, a covering which spreads up on to the petiole 
and the base of the leaves. The bristles often are so many as 
to make the surface quite shaggy and yet in other cases they are 
so few as to be found with difficulty. With these bristles 
there are no glands. In Rh. eudoxum on the other hand this 
bristliness is never very marked and may disappear, but there 
are always glands which are not found on the stem or petiole 
of Rh. pothinum. Then the underleaf surface of Rh. pothinum 
wants the indumentum of Rh. eudoxum, and other points of 
difference are the shorter eglandular pedicels of Rh. ipa 
its smaller calyx with lobes glabrous outside and tiegee 
fringed, its unspotted corolla, glabrous stamens, gynaeceum 
much shorter than the corolla, tomentose eglandular ied 
and stouter style. 
Other species with which Rh. pothinum is allied are Rh. 
temenium, Balf. f. et Forrest and Rh. trichomiscum, Balf. f. et 
Forrest. See p. 160. 
Rhododendron preptum,* Balf. f. et Forrest.t (Falconeri.) 
Tree with stout branches as much as 5 cm. in diameter when 
a year old densely tomentose the tomentum persisting more or 
less for several years. Leaves petiolate as much as 18 cm. long ; 
lamina thickly leathery wider above the middle elongated- 
obovate as much as 16 cm. long 7 cm. broad, rounded at apex 
and with a prominent red-tipped mucro over I mm. long, margin 
cartilaginous plane slightly undulate, base obtuse ; upper surface 
amoentoc, distinguished—in eee to its large leaves and flower-truss. 
see 
stylus glaber crassus sub stigmate discoideo lobulato recurvo expansus 
