gl6 
rHE VEGETATION OF THE ZEMU, 
636. Rhododendron Wi^htii Hook. f. 
Zemu. Very common. 
637. Rhododendron campylocarpum Hook. f. 
Zemii, 11,500-15,000 ft., Nos. 1235, 1431, 1677. Common. 
63$. Rhododendron Thomson! Hook. f. 
Zemu, ^-10,000 ft.. No. 1043. 
639. Rhododendron barhatum Wall. 
Above Lacken. 
640. Rhododendron cilia turn Hook. f. 
Zemu, 9,000 ft.. No. 2778. 
641. Rhododendron camelliseflornm Hook. f. 
Zemu and Lachung, 9-10,000 ft.. Nos. 2591, 2779. 
54^. Rhododendron pnmilum Hook. f. 
Yumchho Lajj and Upper Zemu, 14-15,000 ft.. Nos. 1309, 1598. 
This Rhododendron is very sparingly distributed in Sikkim and has been 
recorded only two or three times since Hooker^s explorations. It occurs 
here and there on the south side of the Zemu valley on open rocky slopes 
where the more prevalent species begin to thin off. 
643. Rhododendron lepidotum Wall. 
Very common and along with R. Anthopogon forming the highest 
belt of Rhododendrons at 14-16,000 ft. 
644. Rhododendron Anthopogon D. Don. 
V ery common. 
645. Rhododendron Raddeni Hook. f. 
Tong, 5,000 ft., No. 881. 
646. Rhododendron ciunabarinum Hook. f. 
Zemu and Lachung, 10-12,000 ft.. Nos. 1177, 1633, 2619. 
647. Rhododendron sp. in fruit. 
near R. DalhousiSB Hook. f. Doubtful; Zemu, 11,400 ft.. 
No. 1097. 
196. Pyrola Linn. 
648. Pyrola rotundifolia Linn, 
var. asarifolia. 
Lachen, 8-9,000 ft.. No. 966. 
XLVI.-MONOTROP ACE JE. 
197. Monotropa Linn. 
549. Monotropa uniflora Linn. 
Lachen and Zemu, 8-9,000 ft.. No. 275.9, 
