

PROVINCES. 



25 



To the east there is a 



49 



or 



about 



i 



■ 



ght connection with Japan. This province has already yielded 



of the whole; of these 35 



species, ui auuut 5 ui me wuoie; oi tnese ao, or 71*4 per cent., are 



endemic 



The remaining province, the Himalayan, is indicated by the Hindu-Kush, Karakorara 



Himalaya, Yunnan, and Nan-ling (southern Nan-shan) ranges, including also the isolated 

 mountain system of the Western Peninsula and the various parallel ranges of the Eastern 

 Peninsula that pass northwards into Yunnan. It meets with the Caucasian and Siberia 



Turkestan provinces on the extreme west, and 



orth 



bounded by the Chinese prov 



It has already yielded 101 species, of which 90, or 89*1 per cent., are ende 



Ihese provinces are shown on the accompanying map, while the subjoined table ahm. 



th 



facts of Pedicularis distribution within them more compactly 



Table VI. 



Distribution of the genus Pedicularis. 



Province. 



Total number of 

 species. 



Ciroumpolar 



European 

 Siberio-Turke stan 



Japanese 



American 



Caucasian 



Chinese 



Himalayan 



• ♦ 



♦ ♦ 



• • 



» % 



• • 



• ■ 



• • 



* ■ 



20 



40 



50 



8 



24 



♦ • 



15 



49 



101 



Number nf species 

 nxlemia 



Percentaf <n<l 



10| 



52-5 



34 



850 



32 



650 



5.1 



<\<)C> 



21 



87 -b 



11 



78-8 



85 



71- i 



90 



89! 



if. 





Th 



endemic percentag 



of these provinces seem to indicate very fairly the amount 



of their isolat 



Thus the Circumpolar province, which has the lowest percentag 



th 



first 



central 



its climatic conditions of 



into those of the adjacent areas, and probably also most 



ty pass most gradually 

 resemble those under 



which the genus was evolved; it 



nowhere separated from these areas by wid 



seas or 



rainless deserts 

 each in turn . 



; on 

 It is 



tl 



contrary, it possesses orgai 

 lected with Europe by th 



physiographical connections with 



Scandina 



Alp 



with Western 



Siberia by the Ural Mountains, with th 



Siberio-Turkestan mountain system 



the 



Stanovoi range, with Japan by the Kamstchatdale hills and the Kurile inlands, with 



A 



by the Rocky Mountains 



And 



the 



especially of the Siberio-Turkestan 



and of the American provinces, these connections provide still an unhroken continuity of 



Alpine- Ar c tic climatic condit 



It is instructive to 



onsider the effects of ignoring th 



existence of this Circumpo 



province 



and of parcelling it 



out among the adj 



specious,' because apparently most natural, annexation ol all 



provinces 

 is madi 



species occurring in Arctic America are 



nsidered 



along with 



Thus 

 and the 

 species i 



if th 



ost 



circumpolar 

 f the true 



American province 



the total number of American species 



aised to 31. J Jut only 2 of 



* 



Akn. Roy. B 



Gard. Calcutta, Yol. Ill 



