258 MR. W. B. HEMSLEY ON THE 
List of Tibetan Plants not known to occur in the 
Himalayan Region. 
| | 
| Mongolia. ; China. | Siberia. | Persia. | 
1 1 
1 1 
| Clematis alpina ............ 
Delphinium grandiflorum ....) 
” Pylzowill ...... | 
Ranunculus tricuspis ...... | 
, Meconopsis integrifolia...... 
| Braya sinensis .......-.... - 
Lepidium cordatum ........ - | .. 1 
Nitraria Schoberi .......... | 
Saxifraga tangutica 
Sedum algidum 
et 
— 
— 
— 
— 
ote ee toe 
1 
»  Przewalskii ........ 
Saussurea alpina............ . 1 ot 
” VOMBA. ee... eee a 1 
» Thoroldii ........ 1 1 | 
Taraxacum lanceolatum . . ] 
Statice aurea .............. 1 . 1 
~Androsace Tapete .......... .. 1 
Gentiana faleata............) . 1 
Lagotis brachystachya 
Kalidium gracile .......... 
Polygonum Bistorta 
Salix Lapponum 
See 
a 
ll oe 
Carex sabulosa ............ 1 
oi 
| 
| 
|.» _ lanuginosus a . 
| Littledalea tibetica ......00, .. 1 | 
| 
| 
4 
Totals .. 26 | 14 11 14 
ae 
Against these twenty-six species, there are seventy-three 
restricted to Tibet and the Himalayas; and, as already men- 
tioned, 217, or about 76°6 per cent. of the total Tibetan species, 
also occur in the Himalayas. 
CONCLUSIONS. 
No elaborate arguments are required to prove that the Tibetan 
is a derived Flora; that is to say derived since the Tertiary 
period ; and its composition is so largely Himalayan that there 
can be little doubt as to its origin. It may be well to repeat 
that “ Himalaya,” as here understood, includes the mountains to 
the west of the Himalaya Proper, and northward to, and including, 
the Karakorum. In fact it is from what we have termed 
Western Himalaya that the greater migration seems to have 
