October 17th.—­I returned to Churra to send away my collections and to consult with Major Lister as to the routes proposed for me by Capt.  Jenkins, viz. through the Garrows, or through the Cacharees.  Nothing particular occurred en route.  I met with Hydrangea exaltata along a torrent flowing into the main-feeder of the Boga Panee, and two other Araliaceae.  The highest ground crossed is towards the ravine of the Boga Panee, and from this a good view of Moflong is obtained, and also of the Himalayas in clear weather.  Coelogyne Wallichiana was commencing to flower; this plant occurs in profusion in some rocky spots about Moflong.  The only additional thing I remarked was, that Luculia scarcely reaches the Kala Panee.

On my return to Churra, a change was observed in the character of the vegetation, all the Tradescantias had ceased, as well as most of the Impatientes, and Eriocaulons.  The grasses had become more withered, and the general tint was brown.  No kites (Falco milvus) are to be observed out of Churra.

The plants which were particularly conspicuous about Churra, were past flowering in the interior; thus Osbeckia Nepalensis? was not to be met with in flower in the interior, while it is in profusion about the station.  The same may be said of other instances.

After all Churra presents the richest flora of any other place in the Khasyah hills, because there is a greater extent of wood near it, than is found in any other locality, much greater altitudes and deeper descents in its ravines, and it is as it were the transit point between a tropical or sub-tropical, and a temperate vegetation.  I have no doubt, that within a circle of three miles of Churra, 3,000 species might be found in one year.

The principal plants pointing out the tropical nature of the vegetation are Pandanus, which is almost limited to the limestone formation, on which it is excessively abundant, Chamaerops Martiana? which from its affecting particularly the walls of the amphitheatres so conspicuous about Moosmai, Mamloo and Surureem, and the depths of whose sides is probably at Mamloo 1,000 feet, might have been better named.  I have never seen it on any other places.  The Alsophila Brunoniana is likewise apparently confined to the limestone hills, while the tree fern, Polypodium, is found on sandstone, as well as Impatiens, Tradescantia, Commelineae, Eriocauloneae, Xyres, almost all the grasses, Melastomaceae, almost all the Leguminosae and the preponderance of tropical Rubiaceae, which are, however, few, Scitamineae, Epiphytical Orchideae, Urena Labiata, etc. etc.