94 



The Ohio Journal of Science [Vol. XVI, No. 3, 



nant species here is Dianthera americana, present in con- 

 siderable abundance, with a few plants of Scirpus americanus, 

 Scirpus nanus and Carex sp. 



s5 Scirpuj 



D Didvtherd 



C Cdldmdcrcjtij 



Pn PonteJerid 

 Cs Cd^tdlid 

 Sp Spdr^dnium 



Ty Typhd 



6d Spirodeld 



nred included. 1000>^1Z60 It. (J01.8 - OSW A) 



The Calamagrostis Zone — Wherever the sandbar actually 

 rises above water level, it is covered with this distinctive type 

 of vegetation. Anything above the height of the Dianthera 



