my. 
FLORA OF TIBET OR HIGH ASTA. 255 
which might, from their physical conditions, be considered as 
forming a part of the same botanical region. But, what is more 
surprising, the number of species restricted to Tibet is also very 
small. Taking our arbitrary boundaries, only thirty-four species 
out of 283 have hitherto, so far as we are aware, not been found 
outside of Tibet. They are :— 
tanunculus involucratus. Cremanthodium goringensis. 
” similis. Crepis sorocephala. 
Anemone imbricata. Lactuca Deasyi. 
Corydalis Boweri. Saussurea Aster. 
Erysimum Chameephyton. | am pumila. 
Eutrema Przewalskii. | .: Wellbyi. 
Parrya prolifera. | Androsace tapete. 
Arenaria Littledalei. | Gentiana Rockhillii. 
Astragalus Arnoldi. Oreosolen unguiculatus. 
” Malcolmii. Nepeta decolorans. 
Saxifraga parva. | Polygonum Deasyi. 
Sedum rotundatum. | ” tibeticum. 
Peucedanum Malcolmii. | Iris Thoroldii. 
Artemisia Wellbyi. Kobresia Sargentiana. 
Aster Boweri. : Agropyron Thoroldianum. 
Cremanthodium Deasyi. Diplachne Theroldi. 
” Fletcheri. Festuca Deasyi. 
This gives about 12 per cent. of endemic species, which is 
very low compared with most countries and especially Asiatic, 
though high as compared with the British Islands, for example. 
Moreover, we are convinced that further researches will result 
in a reduction rather than an augmentation of this number or 
proportion. 
Considering, for our present purpose, Tibet as the centre, the 
extensions of the remaining 249 species are :— 
1. Himalayan Region .. 217 species, or about 76°6 per cent. 
2. Mongolian » .. 107 9 ” 35 ” 
3. Chinese . .. 79 . ” 27S, 
4. Siberian “s .. 99 om . 35 ” 
5. Persian - .. 67 . ys 233 * 
6. Mediterranean ,. .. 00 - i 17: 
7. Arctic . . AT 5 . 162, 
8. Other regions OF . - 20 . 
