200 IOWA ACADEMY OF SCIENCES. 



Hydrocotyle Verticellata, Thumb. Myers (126). Rich, 

 mucky soil near the river. 



Eryngium Yucc^folium, Michx. var. SyncJudiim, Gray. 

 Myers (124). Along borders of ponds and bay heads. 



Eryngium Baldwinii, Spreng. Myers, Punta Rassa and 

 Alva (125), Sanibel. Sandy river banks (Alva) and 

 open ground an the coast. 



CicuTA Maculata, L. Myers. River banks and borders 

 of marshes. 



Discopleura Capillacea, DC. Myers. Open ground. 



TiEDEMANNiA Teretifolia, DC. Myci's. Ponds. 



CoRNus Stricta, Lam. Myers (112). Thickets near ham- 

 mocks; six to ten feet high. 



>Sambucus Canadensis, L. Myers (172). Bayheads and flat- 

 wood ponds. 



Viburnum Obovatum, Walt. Myers (171), Marco. Bayheads 

 and swamp thickets. A shrub four to six feet. 



Houstonia Rotundifolia, Michx. Myers (183). Near flat- 

 wood ponds and also a weed in cultivated soil. Often 

 forming large mats. 



Houstonia Angustibolia, Michx. Sanibel. Sandy prairies. 



Oldenlandia Glomerata, Michx. Marco, Sanibel. Open 

 sandy soil, in bunches. 



Oldenlandia Uniflora, L. Myers (175). Among the grasses 

 and sedges along the edges of wet- weather ponds. This 

 seems distinct from 0. Glomerata. Barnhart 2731 and 

 Nash 1282 belong here. 



Randia Aculeata, L. Myers (182), Punta Rassa, Marco. 

 Brackish swamps and dune thickets along the seashore. 



Cephalanthus Occidentalis, L. Myers (186). Flatwood 

 ponds, usually in the central part, where the water 

 remains throughout the year. Also along the river 

 bank. A shrub as much as twelve to fifteen feet. 



€hiococa Racemosa, Jacq. Myers (185), Marco. Hammocks 

 and rich thickets. Var. Parvifolia, Gray. Myers (184)^ 

 Marco. Hammock near river (184. 



PsYCHOTRiA Undata, Jacq. Myers. Brackish swamp 

 thicket. 



