BALFOUR—NEW SPECIES OF RHODODENDRON. I2I 
species. Flower-buds small, will expand three or four months 
hence. Leaves large ovate oblong elliptic bright shining green 
above with rufous spots below quite glabrous. Young twigs 
stout dark red glabrous, leaf horizontal. Watt. No. 6461. 
12th April 1882. 
Manipur. Ching Sow. Alt. 8500 ft. Only in foliage, old 
fruits and flower-buds. Leaves broader with stouter petioles 
than No. 6513, but probably the same; both forming large 
bushes with few long ascending branches. Watt. No. 6512. 
16th April 1882. 
Manipur. Ching Sow. Alt. 8000 ft. Under surface of 
leaf unusually green but no doubt same as No. 6512. Watt. 
No. 6513. 14th April 1882. 
Manipur. Keyang. Alt. gooo ft. Common. Watt. No. 
6703. 22nd April 1882. 
Manipur. Japvo, Naga Hills. Alt. 10,000 ft. In conse- 
quence of an appeal from me, my friend Dr. W. Coury, Surgeon 
to the 42nd N.I., then stationed at Kohima, paid a visit to 
Japvo to collect some plants for me. Of these perhaps the most 
successful was re-gathering of my No. 6461 in full flower. 
Flowers large pure white, about 3~4 inches long. Calyx of 5 
free teeth, 2 half the length of the other 3, oblong obtuse mem- 
branous. Near to but I think quite distinct from Rh. Maddeni, 
Hook. f. Have referred this point to Kew. Watt. No. 7333. 
22nd July 1882. 
In Sir George Watt’s Herbarium I found some sheets of this 
thododendron about the precise identity of which he Was un- 
certain, but which, as his field tickets show, appeared to him to be 
more or Jess related to Rh. Maddent, Hook. f. yet different. These 
Manipur plants-are all of them related to Rh. Maddent, Hook. f. 
and its immediate microforms Rh. calophyllum, Nutt. and Rh. 
Jenkinsii, Nutt., but they have diverged from the typical Rh. 
Maddeni, Hook. f. by enlargement of the calyx and by develop- 
ment of hairs on the filaments of the stamens. These two 
Characters the Manipur plants possess in common with the 
West Chinese, Rh. crassum, Franch. and its immediate allies 
Rh. excellens, Hemsl. et Wils. and Rh. megacalyx, Balf. f. et Ward. 
As regards the calyx-enlargement, it is to be noted that in 
the dried specimens there is a slight irregularity in the calyx 
lobes of Rh. manipurense. All of them are enlarged, but two 
are commonly smaller than the others. Sir Joseph Hooker 
points out that in the small calyx of Rh, Maddem the lobes are 
unequal and the “upper lobe is often elongated. This is, 
however, a very different condition from what appears in Rh. 
mantpurense—although indicative of calycine enlargement as a 
feature in the phylum. 
