364 RHODODENDRONS COLLECTED IN 
basi euneatis, subtus glaucis squamulosis; floribus subsolitariis ; 
calycis laciniis majuseulis oblongo-ovalibus obtusis, glabris; capsulis - 
ovatis acutis 5—8-locularibus. 
Has. On the mountains of Bootan, beyond the Bhorelli, accompanying 
Pines and other hardy plants of the higher regions. 
A scarce shrub, hardly distinguishable from R. Jenkinsi by the leaves, 
although so very distinct in the inflorescence, which approaches nearer 
to that of R. camelliaflorum. The flowers we have not yet seen. 
To the first part of this section we should also refer R. Muddeni. 
§ ScIADENDRON *.— Calyx obsolete, crenate. Corolla campanulate, 
the border eight- to ten-lobed. Stamens twelve to eighteen (rarely 
ten). Stigma capitate, lobed. Capsule twelve- to eighteen-celled. 
Seeds with a dilated margin.—Shady trees, with unusually large 
leaves : flowers in large corymbs, white or lilac-purple. 
18. RHODODENDRON EXIMIUM, Nutt. 
Arboreum: foliis maximis, coriaceis, obovalibus, obtusis, basi rotun- 
datis, demum glabris reticulatis, subtus ferrugineo-lanatis; corymbis 
multifloris (12-18) subracemosis; pedunculis elongatis; floribus 
maximis marcescentibus ; calycibus obsoletis crenatis; corolla 10- 
lobata; staminibus . . .? capsulis viscosis, oblongo-cylindraceis, 
obtusis, 12—16-locularibus; seminibus subellipticis, lato-marginatis, 
erosis. 
Has. In the forests of Bootan, on the rocky ridge and spurs of the 
Oola mountains, 10-11,000 feet above the sea-level ; growing 
amidst ice and snow; often becoming a very umbrageous stately 
tree, 30 feet in height, forming thickets and also straggling; the 
branches leafy at the summits. 
Leaves oval or oboval, very large, on long petioles, 12-18 inches 
long by 6-8 inches broad, obtuse at both extremities, slightly apiculate, 
rounded and rather narrowed below; at first covered above as well as 
below with dense ferruginous woolly pubescence; beneath pinnately 
nerved and obscurely reticulated. Buds as large as a moderate-sized 
apple, with dilated ferruginous woolly long acuminated scales. Corymb 
with an elongated racemose column ; flowers twelve to eighteen; pe- 
duncles 2-3 inches long, at length nearly smooth. Corolla not seen, 
except in a marcescent persistent state. Capsule very large, cylindric- 
* In allusion to the large leaves and consequent shade. 
