50 



Succession of Species in Central Illinois 



1907 



Species 



£ » 



fl.S 



1908 



^3 eg 



Species 



£.2 



F-l ' 



o 



1909 



Species 



1910 



Species 



£ w 

 £.2 



w a> 



O O 



Fh « 



Fh 



o 



fusca 



inversa 



hirticula 



implicita 



futilis 



3 



1 



1 



2 



5 



3 



2 



4 



4 



5 





6 









/ 





8 





9 





10 





11 



fusca 

 tristis 

 inversa 

 hirticula 

 futilis 

 implicita 

 rugosa 

 crenulata 

 horni 

 ilicis 

 crassis- 

 sima 



1 

 2 



3 . 

 4 



5 

 6 



7 



hirticula 



implicita 



fusca 



drakii 



ilicis 



inversa 



futilis 



2 



1 



fusca 



1 



2 



inversa 



4 



3 



implicita 



5 



4 



hirticula 



7 



5 



tristis 



3 



6 



futilis 



6 



7 



fraterna 





8 



ilicis 



General Chronological List, Central Illinois 

 1, fusca; 2, inversa; 3, hirticula; 4, tristis; 5, implicita; 6, futilis; 7, 



Succession op Species in Southern Illinois 



1908 



1909 



03 



la 



a. 2 



1910 







Fh 



£ » 



S.2 



£>8 









00 



Fh 



£ W 



•2 a 

 S.2 



<3 H 





3 -s 







2 -3 



eg a 





3 -M 



» eg 



° 2 



Species 



° 2 



» 5 



Species 



o o 



o g 



Species 



o O 



& & 





u « 



»H ft 





n » 



Fh ft 





Fh » 



,2 ^ 





Fh 







41 d 



^3 .5 



,2 ^ 





T3 .9 



o 





o 



o 





O. 



o 





O 



l 



micans 



2 



1 



fervida 



11 



1 



vehemens 



3 



2 



hirticula 



1 



2 



vehemens 



15 



2 



tristis 



9 



3 



futilis 



3 



3 



hirticula 



5 



3 



fervida 



8 



4 



vehemens 



8 



4 



rugosa 



16 



4 



fraterna 



5 



5 



fervida 



4 



5 



micans 



4 



5 



futilis 



12 



6 



bipartita 



12 



6 



fraterna 



6 



6 



micans 



1 



7 



fraterna 



14 



7 



corrosa 



10 



7 



hirticula 



2 



8 



implicita 



7 



8 



bipartita 



3 



8 



profunda 



4. 



9 



profunda 



9 



9 



profunda 



7 



9 



corrosa 



10 



10 



congrua 



11 



10 



futilis 



9 



10 



bipartita 



6 



11 



crenulata 



6 



11 



praetermissa 



14 



11 



crenulata 



11 



12 



corrosa 



5 



12 



implicita 



2 



12 



implicita 



13 



13 



delata 



13 



13 



crenulata 



8 



13 



forbesi 



7 



14 



anxia 



10 



14 

 15 

 16 



forsteri 

 forbesi 

 congrua 



13 



1 



12 









General Chronological List, Southern Illinois 

 1, vehemens; 2, tristis; 3, fervida; 4, futilis; 5, fraterna; 6, micans; 

 7, hirticula; 8, bipartita; 9, profunda; 10, corrosa; 11, crenulata; 12, delata; 

 13, implicita; 14, congrua; 15, forsteri; 16, forbesi. 



