Plate III 



Fig. 1. Swampy area with colony of swamp milkweed (Ascleftas tncarnata), Station I, d. 

 (Photograph, T. L. Hankinson.) 



Fig. 2. General view of Station \,g, a colony of swamp milkweed (Asclepias tncarnata) in a 

 ditch parallel to the rails, and of blue stem (Andropogon) and drop-seed (Sporobolus). Photo- 

 graph, T. L. Hankinson.) 



