DARJEELING TO TONGLO. 147 
biacee, Piper, Urticee, Ficus,* Juglans, Scitaminee, Epiphytal Orchidee, 
and Pothos.+ 
. Still there are many Himalayan genera, of which I have seen 
nothing, or only such representatives as grow at the very top of 
Tonglo: I know that in other Himalayan regions, they descend con- 
siderably below 10,000 feet; but they certainly do not in the 
parts of Sikkim I have examined, though they no doubt inhabit 
the regions from 10,000 feet to the snow. Such I shall enumerate, 
with the known Himalayan species of each. Ranunculi (of which 
upwards of 20 Himalayan species are already described), Thalictrum 
16, Clematis 18, Anemone 10, Trollius, Aquilegia, Delphinium 14, 
Aconitum 9, Actea, Paonia, Cimicifuga and Nirbisia, Podophyllum, 
Corydalis 17 (I have seen but two species) Crucifere 40 species 
(I have only found 1!), Parnassia, Alsinee@ about 20 (only 3 or 4 in 
my herbarium), Hypericinee 11 (of which I know 3), Geranium 16 (my 
herbarium numbers 3), Alpine Leguminose about 40 (I have but 1!), 
Spiræa 11 (1 in my herbarium), Potentilla 40 (I know only 3), Rosa 7 
(I have seen 1), Epilobium 15 (2 known in Sikkim), Cireza 3, Crassu- 
lacee 20 (I have none), Rides 6, Saxifraga 22 (not one in my herbarium 
seen by myself), Uméellifere 80 or 100 (I have 5 or 6), Lonicera 21 
(4 or 5 in my herbarium), Valeriana 15 (I have 2), Dipsacee 14 
(Herb. Hook. 0) : Composite and Labiate are not in flower yet, so I 
cannot judge of them, but certainly the alpine genera <Aplotazis, 
Erigeron, Aster, Doronicum, Dolomiea, Senecio (30 species known, none 
seen at Darjeeling yet !), Saussurea, &c., only occur at elevations above 
10,000 feet ; Campanule 26 (Herb. Hook. 5 or 6), Gentianee about 50 
(1 have only 8 or 10), Boraginee 38 or 40 (I have 2 or 3) : in Serophu- 
larinee I am very poor, Veronica 0, Pedicularis (of 18 Himalayan 
species I have seen but 1), Primula only 1, below 10,000 feet! I 
have compared no further, but the above statement proves how rich 
is the Flora of the upper, or alpine region. I have enumerated, as 
possessing only what I have seen: in my herbarium are a few 
Crassulacee, Saxifragee, Dipsacee, and Composite, brought to me from 
the snowy passes; but they either occur always above 10,000 feet; or 
the influence of the great body of snowy mountains very possibly 
causes their seeking a lower level in the interior Sub-Himalayan hills, 
than in the outer ranges, where Tonglo, Sinchul, and the heights I 
- * One species reaches 7,500 feet. — t Upper limit 7,000 feet. 
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