

I 1 II 



III 



IVI 



X V 1 



V 1 



VI 1 VII 



Villi IX 



Fragaria virginiana Duch. 



b 







3 







3 









Fragaria virginiana illinoensis 





















(^Jrr. J ijrray. 



a 



o 



o 











4 









Fragaria vesca americana 























Jr OSt. 



D 







4 













4 



Potentilla monspelicnsis L. 



>> 



3 





3 















Geum canadense J acq. 



D 



3 



4 



3 





4 



3 



3 





3 



Geum virginianmn L. 



a 



4 





4 



4 







4 







Geiun macrophyllmn Willd. 



a 









4 









3 





Rubus occid-Gntalis L. 



u 



4 



4 



4 









4 





4 



Agrimonia gryposepala TVallr. 



a 



4 





4 















lUiUlilcl DLlld-Lcl i.VXJ.LllA. 





o 

 O 





3 





4 



Q 

 O 









XVUbd, Uld.ilU.dj AIL. 



u 



4 





4 





4 





4 





4 



Prunus serotina Ehrli. 



a 











5 











Prunus virginiana L. 



Vv 



u 



4: 



Q 

 O 



3 



4 



3 



q 

 O 



Q 

 O 





Q 



o 



Prunus americana Marsh. 



D 



o 

 O 



o 

 o 



3 



3 



3 





6 





q 

 o 



Family LeguminoscB 























Gymnocladus dioica (L.) Koch. 



a 











5 











Amorpha fruticosa L. 



c 



A 



% 



/( 

 4 











4: 





4 



Desmodium grandiflorum 























(Walt.) PC. 



a 



6 









4 











Amphicarpa monoica (L.) Ell. b 











4 



/( 

 4t 









Family Oxalidacece 























Oxalis filipes Small. 



b 



o 

 6 





3 















Family Butacece 























Zanthosylum americanum ]\Iill. b 



3 





4 



3 



4 



6 



/I 



4 



o 

 o 



Q 



o 



Family AnacardiacecB 























Ehus glabra L. 



b 



3 



3 



3 



3 



3 





o 

 3 





o 

 o 



Ehus toxicodendron L. 



b 



o 

 o 



Q 



d 



3 



3 



3 











Family Celastracece 























Celastrus scandens L. 



b 



4 



4 



4 





4 





4 





4 



Family Aceracece 























Acer saccharmn Marsh. 



a 











4 











Acer saecharum nigrum 























(Michx. f.) Britt. 



a 











5 









A 



4 



Acer saccharinum L, 



c 



















4. 



Acer negundo L. 



c 



A 





4 



4 



4 





4 i 



/I 



Family Balsaminacece 























Impatiens pallida Nutt. 



c 







3 















Impatiens biflora Walt. 



c 







3 













O 

 O 



Family VitacecB 























Psedera quinquefolia (L.) 























Greene. 



a 



3 



3 



3 





3 



3 



3 





3 



Vitis vulpina L. 



b 



3 



3 



3 



3 



3 



3 



3 





3 



Family Tiliacem 























Tilia americana L. 



a 



4 



1 4 



3 



4 



4 



4 



4 





3 



62 



