226 Statistics of the Flora of the Northern States. 



As appears from the tabular view commencing on p. 208, 

 there are common to Europe, 



180 Dicotyledonous species out of 1490, or 12 per cent. 

 141 Monocotyledonous species out of 601, or 23'4 " 



321 Phaenogamous Species out of 2091 or 15*3 " 



35 Acrogenous Cryptogamia out of 75 or 46*6 " 

 320 Musci and Hepaticae out of 502 or 63-7 " 



355 Cryptogam ous species out of 577 or 61-5 " 



in accordance with the general fact that the lower the class the 

 wider the geographical area occupied by the species. 



In the following table I have attempted to exhibit the particu- 

 lar range of our indigenous phaenogamous species of each natu- 

 ral order in longitude, through the northern temperate zone. 

 The table has been hastily prepared, and must be often erroneous 

 in details ; but the general results are probably very near the 

 truth. 



The Indigenous Phaenogamous Species of the Northern United States, 

 mewed as to their geographical distribution around the northern tem- 

 perate zone. 







East'n N. American : 

 not extending west- 

 ward beyond the 

 Rocky Mountains. 



f! I 



.2 



but 



ica. 



s 



3 



m 



£S 



Natural Orders 



Whole number 

 species in the no 

 ern United State 



Extending westw 

 to the Pacific c< 

 or near it. 



Extending into A 



Inhabiting Asia, 

 not in N. W.Amer 



Inhabiting Asia, 

 not in Europe. 



[Extending into 

 rope. 



E on 

 B as 



c 



2f 



- o 

 . - c 



Class I. 



















DlCOTYLEDONEiE, 



















seu Exogen^e. 



















Ranunculacese, 



49 



26 



20 



13 



1 



5 



10 



2 



Magnoliaceae, 

 Anonacese, 



6 

 1 



6 

 1 















Menispermaceae, 

 Berberidaceae, 



3 

 5 



3 

 5 















Nelumbiacese, 



1 



1 















Cabombaceae, 



1 







1 



1 



1 







Nymphaeeeae, 

 Sarraceniaceae, 



3 



2 



1 

 2 



2 



1 







1 





Papaveraceae, 

 Fumariacfcse, 



2 

 6 



2 

 5 



1 













Cruciferae, 



46 



31 



13 



11 



2 





11 





Capparidaceae, 



Violaceae, 



Cistaceae, 



1 

 18 



1 



15 



3 



1 







1 





7 



7 















Droseraceae, 



4 



2 



1 



1 







2 



1 



Parnassiaceae, 



3 



2 



1 



1 







1 





Hypericaceae, 



18 



18 















