PLANTS OF ILLINOIS. 



45 



var. megacephalus, Torr. C. & N. 



Meuavd county, Hall : and northward. 



brach}'carpns, Engelm. 



Moist woods and prairies. Scarce. 



Canadensis, J. Gay. : 



var. longicandatus, Eng. N. 



Kankakee county. Hill : McHenry, Vasey. 



var. brachycephalus, Eng. N. 



Peoria county, Brendel, and probably northward. 



var. coarctatus, Engelm. N. 



Kankakee county. Hill. 



PONTEDERIACEJS. 



PONTEDERIA 

 cordata, L. 



Ponds. Infrequent. 



HETERAXTHERA 



reniformis, Ruiz & Pav. S. 



Wabash county. Schneck. 



limosa, Vahl. 



Illinois — G ray's Manual. 

 SCHOLLERA 



graminea, Willd. 



In ponds and s'ow streams. 



COMMELYNACE^E. 



COMMELYNA 



ereeta, L. 



Wabash county. Schneck. 



Vireinica, L. 



Frequent. 



s. 



Henderson county, (in sandy barrens) ; Mason. 

 Mead ; and southward. 



c. & s. 



ISO 



s. 



Cayennensis, Richard. 



Madison county. Hall : and southward.. 



TRADESCANTIA 



Virgin ica, L. 



Open woods and prairies. Common. 



pilosa, Lehrn. C. & S. 



Hancock county. Mead : and southward. 



XYRIDACE^E. 



XYRIS 



flexnosa, Muhl. 



Calumet. Cook county, (rare), Babcock ; Kanka- 

 kee, Hill : Mason, Had. Rare. 



CYPERACE.E. 





CYPERUS 





flavescens, L. 



S. 



Low grounds. Jonesboro, Union 



county, Vasey 



diandrus, Torr. 





Low grounds. 



Common. 



erythrorhizos, Muhl. 





River banks, throughout. 



Frequent. 



inflexus, Muhl. 





River banks, close to the water. 



Common. 



acuminatus, Torr. 



c. & s. 



Low grounds, from Henderson and Peoria coun- 

 ties southward. Rare. 



phymatodes, Muhl. 



Wet places. Frequent. 



strigosus, L. 



Low grounds. Common. 



Michauxianus, Schultes. 



Low grounds. Frequent. 



Engelmanni, Steud. 



Low grounds. McHenry county, Vasey ; banks 

 of Cahokia creek, St. Clair county, Engelmann. 



Schweinitzii, Torr. C. & N. 



Sandy river banks, from Mason county north- 

 ward. Frequent. 



filiculrais, Vahl. 



Barrens. Frequent. 



ovularis, Torr. C. & S. 



Barrens. Peoria county, Brendel ; and south- 

 ward. 



KYLLINGIA 



pumila, Michx. C. & S. 



Low grounds. Menard county, Hall: and south- 

 ward. 



DULICHIUM 



spathaceum, Pers. 



Borders of ponds. Frequent. 



FUIREXA 



squarrosa, Michx. S. 



Jonesboro, Union county. Vasey. 



HEMICARPHA 



subsquarrosa, Nees. 



Sandy river banks, close to the water. 



ELEOCHARIS 



quadrangulata, R. Br. S. 



St. Clair county, Brendel. 



