224 Statistics of the Flora of the Northern States. 



Table continued. 



Orders. 

 _ 



Extra- European Genera 

 of Eastern N. Amer- 

 ica. 



Also occurring in W. N. 

 Amei ica, i. e. in Ore- 

 gon and California. 



Occurring in E. Asia, 

 i. e. in .Japan, China, 

 or Himalayas. 



CyperacecB, 



Kyllingia. 





Kyllingia. 





Dulichium. 







Hemicarpha. 









Fuirena. 





• 



r uirena. 





1 SllOOcli V di. 









Ml/ill VArVl ATI Q 









Kjkil dLOaOIiccllU.o. 









Scleria. 





ocleria. 



(xrcLmmece. 



Zizama. 









v ma. 



v uia. 



villa. 





Sl y\ r\ vf\ n r\ 1 n 



opui UUUIUa. 



opoioooius. 





1VT i i m 1 p n V>p T'O"! a 



Mn n lpn npro*ifi 





£>i aoiiyci y ti mil. 









Aristida. 





Aristida. 





Ctenium. 









OOUlClOUdi. 



UOULclOUd. 







Gymnopogon. 









Leptochloa. 





Leptochloa. 





T rii-'iisriK 









Ill o i*v n on o 

 LJ Yell 1 11 c Ilct. 









Eatonia. 









-Oiyzopyi mil. 



dliiik) py r mil • 















A vnnninsi'i!! 



LX.1 IXUKXlLlcit Id. 





AviirtrlinciTMO 

 ill mi mil a 1 lex. 





Gy mnosti chum. 









Amphicarpum. 









Paspalum. 





Paspalum. 





Cenchrus. 



Cenchrus. 



Cenchrus. 





Tripsacum. 









Sorghum. 



81 



Sorghum. 





353 



101 



That is, 87 of our 353 extra-European phsenogamous genera, 

 or 24 per cent are common to Western North America, and 101, 

 or 28 per cent to Eastern temperate Asia. Four per cent more 

 of our characteristic genera are shared with an antipodal region 

 than with the neighboring district of W. N. America. And the 

 number is likely to increase ; for we know far less of the flora of 

 Japan and China than of California and Oregon. Drs. Hooker 

 and Thomson's large Himalayan collections, now in the course 

 of distribution and publication, will probably add several more 

 to the list. Twenty-nine of these genera, or 8 per cent, are 

 common to all three of these regions. 



Our 194 genera which are neither European, N. W. American, 

 nor E. Asiatic in temperate regions, require further discussion to 

 show which are characteristic of Eastern North America. We 

 will here barely notice that : 



\ 



