BOTANY. 203 



CXIII. Order PONTEDERIACE.E. Pickerel-Weed Family. 



516. PONTEDERIA L. Pickeree-Weed. 



PONTEDERIA CORDATA L. 



Frequent in marshes along the shores of Lake Erie ; Licking Co., H. L. Jones 

 ( Cat.) 



PONTEDERIA CORDATA ANGUSTIFOEIA Torr. 



Painesville, H. C. Beardslee. 



517. HETERANTHERA Ruiz & Pav. Mud-Peantain. 



Heteranthera dubia Jacq. {H. graminea Vahl.) 

 Throughout the state. 



Heteranthera reniformis Ruiz & Pav. 



Cincinnati, Joseph Clark (H. C Beardslee, Cat.), Jos. F. James (Cat.); "Lock- 

 bourne, Ohio," J. L. Riddell (Synop. 1835). 



CXIV. Order COMMELINACE^. Spiderwort Family. 



518. COMMELINA Dill. Day-Feower. 



Commeeina VIRGINICA L. 



Cincinnati, Joseph Clark (Cat.) 



519. TRADESCANTIA L. Spiderwort. 



Trade scantia pilosa Lehm. 



" Ohio," Gray (Man.) ; Miami Valley, A. P. Morgan (Flora). 



Tradescantia vtrginica L. Common Spiderwort. 



Central and Southern Ohio; Lorain Co., A. A. Wright (Cat.) 



CXV. Order XYRIDACE.E. Yellow-Eyed Grass Family. 



520. XYRIS Gronov. Yeeeow-Eyed Grass. 



Xyris caroliniana Walt. 



"General," ]. S. Newberry (Cat.) ; Ohio, H. C. Beardslee (Cat.) 



Xyris feexuosa Muhl. 



Portage Co., W. Krebs; Wood Co., Albert Neiffer; Lancaster ( Fairfield Co.), J- 

 M. Bigelow ( H. C. Beardslee Cat.) 



