BOTANY. 203 



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



516. PONTEDERIA L. Pickerei-Weed. 



PONTEDERIA CORDATA L. 



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

 (Cat.) 



PONTEDERIA CORDATA ANGUSTIFOIJA Torr. 



Painesville, H. C. Beardslee. 



517. HETERANTHERA Ruiz & Pav. Mud-Pi,anTain. 



Heteranthera dubia Jacq. ( H. graminea Vahl.) 

 Throughout the state. 



Heteranthera reniformes Ruiz & Pav. 



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

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



CXIV. Order COMMELINACE^E. Spiderwort Family. 



518. COMMELINA Dill. Day-Flower. 



Commeijna virginica L. 



Cincinnati, Joseph Clark (Cat.) 



519. TRADESCANTIA L. Spiderwort. 



Tradescantia pimjsa Lehtn. 



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



Tradescantia virginica L. Common Spiderwort. 



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



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



520. XYRIS Gronov. Yeiaow-Eyed Grass. 



Xyris carouniana Walt. 



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



Xyris flExuosa Muhl. 



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

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



