Plate LIV. 



Fig-. 1. Sct'fpiis americanus (3-angled bulrush) association toward the left hand side. 

 Scirpiis valtdiis (giant bulrush) association at the right of the center. Beach, Illinois. August 

 24, 1909. 



Fig. 2. Swale south of Beach, Illinois, dominated bv Cladium mariscoides. Pines in the 

 background. September 11, 1009. 



