PLATI5 III 



Fig. 1. Swampy area with colony of swamp milkweed {AscUpias nicariiaUi), Station I, d. 

 (Photograph, T. L. HanUinson.) 



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Fig. 2. (General view of Station I,^, a colony of swamp milkweed {Asclnpias incarnata) in a 

 ditch parallel to the rails, and ol blue stem (Andropooon) and drop-seed (Sporoboliis). Photo- 

 graph, T. L. Hankinson.) 



