^ 



PLATE h 

 Palaeopteridium reussii (Ettinghausen) Kids ton 



Figure 



1 



ISM 



1+16528 







scale 1:1 



2 



coll. Marietta College 

 (Rushville, Ohio) 



scale 1:1 



3 



ISM 



1+161*36 







scale 2:1 



k 



ISM 



U16528 







scale 5:1 



5 



ISM 



1+16 







scale 5:1 







Lacoea 



seriata 



Read 





6 



ISM 



1|162T8 







scale 2:1 



7 



ISM 



1+16275 







scale 2:1 



8 



USNM 26222 



(Dutch Mountain, PA] 



) 



scale 1:1 



