HIMALAYAN DIVISIONS. 



27 



3. 



The South Indian division.— Small and 



dated, this embraces Southern Indi 



and Ceylon, and contains two species which are both endemic. 



ia 



i 



The facts are shown more succinctly in tabular form : 



Table Nll.—Distributi 



Himalayan Ped 



Division. 



Total number of 

 species. 



Number of species 

 endemic. 



1 v rcentage endemic. 



True Himalayan : Emodic (of Schow) 



• % * 



Indo-Chinese 



e • e 



• • • 



South Indian 



• • e 



e • # 



• • • 



61 



47 



2 



43 



35 



70 



2 



714 



Kki 



The Emodic division of the Himalayan province admits of 



nient hubd 



at 



the valley of the Karnalli in Nepal 



an eastern 



d a western half 



This 



river 



whose course almost 



try coincides with 81*5° E. Long 



* 



lino midway between the 



eastern and western limits of the division), takes rise from the southern aspect of the 



dge that parts the 



Himalayan waters that flow west to the Sutlej and Indus from 



those that flow east to the Sanpo and Brahma put 

 of which 7, or 304 per cent., 



The western half contains 2 



are 



demic 



It contains, however, 



3 



that extend 



from Persia, Turkestan or Tibet, but do not reach the 



half, so that as against 



the latter the western contains 10, or 43*5 per cent., of peculiar species. The eastern 

 half is twice as rich, yielding 49 species, of which 32, or 65-3 per cent., are endemic 

 There are 6 others that extend from Tibet or Indo-China without reaching the western 

 half so that as against the western the eastern half contains 38, or 77*5 per cent., of 

 peculiar species 



No such subdivision of the Indo-Chinese division is yet evident, although 



» 



as w 



ill presently appear, certain districts 



distinctly discernible in it 



is 



there 



any 



subdivision possible 



the South Ind 



divisi 



th 



most 



kable feature of which 



that its species show greater affinities to Indo-Chinese than to Emodic (truly Himalayan; 



speci 



es. 



In considering now 



the evidence as affecting the Himalayan districts, it must be 



reco 



llected that too little is 



merely approximate results 



really known of Himalayan botany to admit of other than 



stated. For while the Western Himalaya has, except 



being 



for a 

 Eastern 



limited area (Kafiristan) near the Indus, been fairly thoroughly investigated, the 

 Himalaya, except for a very small section near the centre (Sikkim-Chumbi), is still 



;plored. 



The Trans-Indus* district comprises 



with the highlands of 



Afghanistan 



It 



lay 



on 



the south-east, to the Kuen 



Turkestan) on 



north 



d much 



the Hindu-Kush and Karakorara (Mustagh) ranges 



is physiographically united to the Panjab Hima- 



( Chinese) on the east, to the Tianshan (Siberio- 



distinctly to the Persian highlands on the west. 



rKestan; on me uuim, »i«* ^ _^_ _ 



- r~~. TTttioff this South Indian Division within the Himalayan Province, th- 



i It is necessary to point out here that ; in adm g ^^ fc ^^ ^ ^^ o£ the Jndean LirUiom 



canon that regulates the recognition ot provi ^^ Ration. It is indeed extremely probable that both South 



to the Ambbican Pbovince is another instance o e ^_^ ^^ but ^ number of species they contain (two in the 

 India and the Northern Andes are entitled to ac m p^ convenie ' nt t0 treat them along with the nearest adjacent 

 first case, one in the second) is so small tha 1 M annexation is an intentional divergence from a rule that 



provinces, only calling attention in passing to the fact 

 has everywhere else been rigidly observed. 



everywiiere eise ^-'^ ~ Kuronean) point of view 

 3 Trans-Indus from the Indian (not European; pu 



Ann 



. Roy. Bot. Gakd. Calcutta. Vol. III. 



