After the first considerable ascent is surmounted, and which is probably 4,750 feet, the country becomes more barren, the grass more scanty and less luxuriant. Spathoglottis, and Anthogonium disappear; Xyris continues in abundance, likewise Eriocaulons, especially the middling-sized one; Bucklandia becomes more common and more developed; a frutescent Salix commences at 4,800 feet, as well as a Gramen Avenaceum vel Bromoideum.
Surureem is a small village, 100 feet above the rude bungalow, provided for the few travellers who pass this way; close to it is to be found Zanthoxylum and Hemiphragma, which last commences at Moosmai. The simple leaved Rubus of Churra, petalis minutis carneis, has ceased; a trifoliate one foliis cordato-rotundatis, existing instead. Most of the grasses continue, but all are comparatively of small stature. Two new Andropogonoids make their appearance: of Compositæ, a Tussilaginoid and a stout Senecionidea, the former not uncommon about Churra, but out of flower. Salomonia ceased.
The height of Surureem I calculate at 4,978 feet; temperature 65° Fahr.; of centigrade 19°; water boiled at 95½° of centigrade; 203° Fahr., wooden scale; 203½° large metal; small ditto 195½°! Temperature of the air at 6 P.M., 63°.
October 6th.—Temperature 6 A.M., 63½°. Left for Moflong. There is a considerable rise at first, then the country is tolerably level until one reaches the Kala Panee, the descent to this is about 7 or 800 feet, thence the rise is great, with a corresponding descent to the Boga Panee, which I estimate at 4,457 feet, and which is certainly 1,000 feet below the highest ground passed on this side of the Kala Panee. After crossing this torrent, by means of a miserably unsteady wooden bridge, the ascent is very steep for about 1,200 feet, thence there is a small descent to Moflong, which I find to be 5,485 feet. Most of the plants continue. Tradescantia and Commelina become much less common towards the Kala Panee, as well as the Impatiens of Churra, but their place is supplied by others. Along 100 yards of the Kala Panee, upwards of four species may be met with. Polygonum (Bistorta) becomes more common on the higher ground between Surureem and Kala Panee, thence diminishing in size and frequency. Polygonum Rheoides becomes abundant towards a height of 5,200 feet, when Pyrus, an apple-like species, and Spiræas make their appearance at 5,300 feet. On the Kala Panee, Bucklandia re-appears, but thence would seem to cease: on the brow of the ascent from this, Pedicularis appears in abundance among grasses, with it Sphacele? At the same height, which cannot be less than 5,400 feet, Carduus or Cnicus, appears. Solidago commences in the valley of the Kala Panee, but becomes more abundant at higher elevations. Sanguisorba appears at 5,400 feet, but in small quantities, and at this height Anisadenia recommences. Epilobium appears at 5,300 feet, continues at the same elevation to Moflong, where it is common. On the descent to the Boga Panee, an European form of Euphorbia appears at 5,000 feet with Viola Patrinia and a Galium asperum. Hieracium appears at about the same height. Cuscuta is very common from 5 to 5,500 feet, continuing even to Moflong; the scales of this genus are, it appears to me, mere appendages of the filaments, and not due to non-development or suppression of parts. Erythrina, which is found about Churra, is seen on the road to Kala Panee, apparently quite wild; altitude 5,200 feet: it recommences at Moflong, where it is common about villages, but never exceeds the size of a small tree. Commelina bengalensis? continues throughout here and there, and may be found even about Moflong.
The most striking change occurs, however, in the Pines, which, although of small stature, exist in abundance on the north side of the Boga Panee; so far as may be judged of by the naked eye, they disappear on this side, about a mile to the westward, very few cross the torrent, and few indeed are found 100 feet above its bed on the south side. I took the height of the bed of this torrent. Temperature of the air 72°; water boiled at 204°; which gives the height about 4,400 feet. Between Surureem and the Boga Panee, many new plants occur; grasses continue, as also at Moflong, the prevailing feature. The principal new ones occur on the descent, consisting of two large Andropogons, one closely allied to A. schæranthus and a tall Anthistiria habitu A. arundinacea; a beautiful Saccharum occurs here and there, especially before reaching the Kala Panee and the Gramina Bromoidea, which is the only really European form. On the Kala Panee, scarcely any Podostemon griffithia; except a few small ones, very few signs or appearance of fresh plants. Along the Boga Panee, among the wet rocks which form its banks, a fine Parnassia; a trailing Arbutoidea; a very European looking Quercus; Anesadenia pubescens, a Circæa, Campanulæ 2, Æschynomene, Crotalaria, a Serissa?; this last continuing to Moflong, a fine Osbeckia, and Gnaphalium aereonitus may likewise be found. On the ascent, few new plants occur; Rhinanthoidea, Osbeckia nepalensis, and capitata, Conyzoidea, Dipsacus, Gnaphalium foliis linearibus, Crotolaria hoveoides, Colutoidea, Pteris (Aquilina.) Scutellaria, Potentilla, Smilax occur at 5,000 feet with Plantago, Fragaria and Artemisia, as well as lower down. The most striking plant is a Delphinium, which, at about 5,000 feet, occurs stunted; this is common about Moflong.
Agrimonia range from 3,500 to 5,500 feet, where they are very common, Hypericum three sorts occur, H. myrtifolium commences, about Churra, re-occurs here and there on the road to Moflong, about which it is very common. H. ovalifolium, is more elevational, scarcely descending below 5,000 feet; H. japonicum is found from towards Mahadeb to Moflong; H. fimbriatum foliis decussatis, scarcely below 5,000 feet; Leucas galea brunneo villosa on grassy hills is common towards Boga Panee, and continues as high as Moflong.
Quercus commences about Mahadeb: a new species occurs on the edge of woods towards the Kala Panee; altitude 5,000 feet; it nearly commences with two Rhododendra, which, at least the arborescent one, arrives at perfection on the Kala Panee.
Viburna continue; Salix (fruticose) commences about 5,000 feet, continues here and there to Moflong. Buddleia Neemda is found about Churra, but not commonly; and soon disappears. B. 4-alata commences beyond the Churra Punjee, and continues as far as Moflong.
Thibaudia buxifolia becomes less common beyond 5,000 feet; other forms of Ericineæ appear in places about 5,000 feet, Gaultheria continuing as far as Moflong. Eurya species alterum, commences about the same elevation, continuing to Moflong.
Three species of Spiræa are found between Surureem and Moflong, none perhaps below 5,000 feet; Prunella occurs about the same height, continuing as far as Moflong.