IOWA ACADEMY OF SCIENX'ES. 145 



LYTHRACE.E. 



Lythrum alatum Pursh. Decatur, Appanoose, and Johnson 

 Cos. Fields and low places, common. 



Rotala ramosior Koehne. Henry Co. 



Ammannia coccinea Rottb. Johnson Co. Sandy shores, infre- 

 quent. 



OXAGRACE^E. 



Ludwigia alternifolia L. Decatur and Johnson Cos. Wet 

 ground, infrequent. 



L. polycarpa Short & -Peter. Decatur and Appanoose Cos. 

 Margins of ponds, common. 



L. palustris Ell. Johnson Co. In water or wet places, infre- 

 quent. 



JSpilobium angustifolium L. Shelby Co. Woods, infrequent. 



E. coloratum Muhl. Decatur, Van Buren, and Johnson Cos. 

 Wet ground along rivers, frequent. 



Gaura coccinea Nutt. Decatur, Appanoose, and Johnson Cos. 

 Fields and waste places, common. 



Oenothera biennis L. Van Buren and Johnson Cos. Waste 

 ground, frequent. 



Oe. rhombipetala Nutt. Decatur, Van Buren, Des Moines, 

 and Johnson Cos. Fields and waste places, common. 



Oe. serrulata Xutt. Shelby Co. Prairies, frequent. 



Circosa lutetiana L. Decatur, Appanoose, Henry, and John- 

 son Cos. Woods, common. 



CUCURBITACE^E. 



Sicyos angulata L. Des Moines Co. Waste places, frequent. 

 Echinocystis lobata T. & G. Decatur, Des Moines, Shelby, 

 and Johnson Cos. Low woods, common. 



FICOIDE^E. 



Mollugo verticillata L. Decatur and Johnson Cos. Sandy 

 shores, frequent. 



UMBELLIFER^E. 



Daucus carota L. Decatur and Appanoose Cos. Fields 

 infrequent. 



