226 MR. W. B. HEMSLEY ON THE 
Before entering upon a discussion of the altitudinal distribu- 
tion of the Tibetan Flora, it may be instructive to glean some 
data from collections made in adjoining countries. 
The collection made by Sir Martin Conway and Mr. McCormick 
when exploring the Hispar and other glaciers of the Karakorum 
range, in 1892, was worked out at Kew, aud is useful for com- 
parisons. Its composition follows :— 
Orders. — Genera. Species. 
Polypetala .............0.. - 17 54 96 
Gamopetale....... 0.0.0.0. 08. 15 50 80 
Incomplete ..... 0.0.00... 000. 6 8 12 
Gymmosperme..........00.00. 2 2 2 
Monocotyledones.............. 6 9 10 
Totals 
Deere eee eee 46 123 200 
The predominating natural orders are :— 
Species. 
Species, Brought forward... 99 
Composite..........., 30 Ranunculacee ........ 7 
Crucifere ............ 17 Saxifragacere.......665 7 
Rosacee..... 2.00.00. 17 Crassulaceee .......... 7 
Leguminose .........., 14 Gentianacere ........- 7 
Boraginacee ... ...... 13 Labiate... 6... eee 7 
Caryophyllacee ....., 8 Primulaceee ........-- 6 
99 140 
With the exception of the Boraginacee, the orders and the 
proportions of species are very nearly the same as in the Flora 
of Tibet. 
This collection was made between 74° 30’ and 76° 42’, and 
between 35° 38’ and 86° 15’—that is to say between Nagyr, at 
7790 ft., and Skoro La, at 17,320 ft. ; and the highest point reached 
was Pioneer Peak, 22,600 ft. Eleven species of flowering plants 
were collected at 16,000 ft. and upwards, namely :— 
Isopyrum grandifiorum, . 16,000 ft. Saxifraga imbricata .. 16,000 ft. 
Parryaerscapa ......., 16,500 ,, | oppositifolia. . 17,000 ,, 
| 
| 
Chetranthus himatlayensis, 16,500 ,, . Hirculus .... 17,820 » 
Lychnis apetala see ee ee 16,400 | Sedum ttheticum ....4+ 16,500 ” 
Astragalus confertus ..., 16,500 ,, Leontopodium alpram. . 16,500 ,, 
Potentilla I, nglist? ....., 17,0€0 ,, 
