ECOLOGICAL CROSS SECTION OF THE MISSISSIPPI 



237 



- 









so U III 





m 



















ILLINOIS 





Blufi 



¥ 



Lowland 



River 



Lowland 



Bluff 



Upl 



and 



13 



16 



17 



5 



18 



19 



11 



12 



12 



20 



21 



22 



23 



26 



25 



14 



11 



12 



12 



11 



1 



18 



24 



16 



15 



14 



L 



12 



7 



6 









1 

























1 



1 

























1 











X 









1 



X 







X 



X 



Fr 



s 



o 



1 































X 









2 



X 







X 



X 



Fr 



s 



o 









1 

























X 









3 



X 



L 





X 



X 



Fr 



s 



o 





1 

 1 





























X 









4 





1 





X 



X 



Fr 



s 



1 



o 



















1 



ri 





X 



X 





1 











5 

 6 



X 



X 





Fr 



X 



X 

 X 



X 



Fr 



Jl 



1 



X 



X 

 A 





 



1 







X 



1 







X 









X 





X 



X 

 X 



X 





1 

 1 



1 



7 

 8 







X 



Fr 

 I'r 



X 

 X 



X 



X 



Ag 

 Ag 



o 



O 





X 











X 







1 

 1 





X 



X 





X 





9 



X 



X 



X 







Fr 



X 



X 



1 



X 



Ag 



X 



D 









X 



X 



1 











X 



X 



1 



X 





10 



X 



X 



X 







Fr 



X 



X X 



Aglx D 









X 



X 



1 



■ 



X 

 X 



1 

 1 





X 

 X 



X 



1 





1 



1 

 1 





12 



11 



X 

 13 



14 







Fr 

 Fr 



Fr 



1 



S 



Fr 



Jl 



My 

 O 



Ag 

 Ag 



Ag 

 X 



s 



X 



X 



X 

 X 



X 

 X 



X 





■ 



■L 



X 







± 

















1 







15 









Fr 



Je 



s 













± 









± 



i 





± 



± 





± 



± 



1 



1 



16 



± 



± 

 17 







Fr 



Jl 



Fr 



± 



Ag 



± 



o 



D 



± 



X 



lb 



± 





; 



± 



± 







X 



X 



18 



X X 



X 



X 



X 



X 



X 



X 



X 



X i 



X 



X 



X 



X 



X 



X 



X 



X 



X 



Fr 



X 



Ag 



N 



X 











+ 



+ 















19 









Fr 



Jl 



o 





+ 



+ 









+ 



+ 











X 











X 



X 





X 



20 



1 



X 



xl 



Fr 



X 



Ag 



S 



X 









































21 , 







Fr 



S 







X 









■ 



1 



X 







X 





























22 ' 









Fr 



o 



N 













X 

































23 



1 









Fr 



s 



N 











X 



X 





X 





























24 









X 



X 



Fr 



X |S 



N 



1 

















1 



X 

















X 

 X 



25 

 26 



X 

 X 



X 

 X 





X 

 X 



X 

 X 



Fr 



Fr 



X 

 X 



Ag 

 Ag' 



s 

 s 



■ 















* 



1 



X 



1 





± 









1 



X 



27 



28 

 29 

 30 



i 



X 



Fr 

 Fr 



X 



± 



Fr 



X 



Fr 

 Je 



1 



S 

 X 



Ag 

 Ag 

 

 S 



o 



± 



o 



X 







1 



1 







1 



X 





^ 





X 







X 













31 









Fr 



s 







X 









































32 









Fr 



My 



Je 





1 









+ , 





\ 







X 



X 







1 





X 









33 





X 



Fr 



X 



X 



X 



X 



s 













1 

 1 



1 





X 





-f 







■ 



] 













34 









Fr 



Je 



Jl 





1 









+ 



1 



1 

 1 



1 







± 









± 





4- 











35 







Fr 



Je 



N 



± 









± 





± 





1 



± 







X 



X 





± 



1 











1 





36 

 37 





K 



Fl 



X 

 Ag 



Fr 



S 



X 



± 



X 



s 







X 









X 



1 



X 



4 



* 







♦ 



* 





* 



« 





38 



* 







Fr 



Ag 



o 



* 





* 



1li 



ll> 



* 





* 



* 















1 











39 







Fr 



My 



Je 







■ 























± 



+ 





lb 









± 



40 









Fr 



± 



Je 



Jl 



± 













■ 







± 







+ 



± 







± 





1 





41. 





Fr 



Ag 



1 



± 



± 







± 



± ± 



± 





± 















* 







m 









1 





42 

 43 

 44 







Fr 

 Fr 



Fr 



X 

 X 



My 



Ag 

 Ag 



Je 



S 



s 



1 



X 

 X 



i 

 ! 



1 

 1 





- 







1 





* 



\ 







* 



* 





* 



* 









45 







Fr 



Ag 



* 



* 



D 



♦ 



* 



■ 



* 



* 



1 









* 



± 



± 



± 















9 



1 

 1 





46 

 47 







Fr 



Jl 



Fr^ 



S 

 Jl 



+ 



s , 







1 



± 



1 



± 



± 



1 



lb 



1 



± 









X 











X 



X 





X 



48 



X 



X 



Fr 



X ' 



X 



Jl 



X o 



























X 











1 





49 









Fr 



Ag 



s 













X 









± 

























50 









Fr 



Je 



N 



- 













i 



± 





± 



± 





















■ 



51 









Fr 



1 



My 



N 

















± 





