26 
Holm, The genus Carex in North-West America. 
Japan, and 62 to China; a still larger number is peculiar to 
Himalaya. In Mr, Cheeseman’s revision of the New Zealand Carices 
26 species are said to, be peculiar to these islands, where the total 
number of species aggregates only 42. 
C. The g’eog’raphical distribution of the Carices of 
North-West America. 
In this chapter we have endeavoured to illustrate the distri¬ 
bution of these species throughout the Northern hemisphere, and 
especially in the arctic regions. We have extended the ränge to 
Iceland, Faeroe islands and Great Britain in order to show the 
presence of some of these species on islands, which, to some 
extent, may be brought in connection with their occurrence on 
the mainland of Europe, thus demonstrating their probable roads 
of migration during or after the glacial epoch. Furthermore when 
including the South European Mountains, Caucasus, Altaj and 
Bajkal Alountains, besides the Himalayas, we desired to show the 
occurrence of these same species at higher elevations in the 
mountaineous districts farther South so as to indicate the pro- 
bability of more than one geographical center of distribution. 
Our comparison with the Flora of the Himalayas is mainly 
based upon Mr. C. B. Clarke’s treatment of the Cyperaceae in 
Sir Joseph Hooker’s Flora of British India; in the column con- 
taining species from Eastern Asia we have consulted Franchet’s 
work ,,Le Carex de l’Asie orientale“ and Professor Kjellman’s 
,,Asiatiska Beringssunds-Kystens Fanerogamflora“. 
Arctic regions 
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