158 IOWA ACADEMY OF SCIENCES. 



ACANTHACE^E. 



Ruellia ciliosa Pursh. Decatur, Appanoose, Wapello, Van 

 Buren and Johnson Cos. Open woods, borders, waysides, 

 common. 



R. strepens L. Decatur Co. Shaded ravines, frequent 

 locally. 



VERBENACE^E. 



Verbena urticcefolia L. Decatur, Appanoose, Wapello, Des 

 Moines, and Johnson Cos. Fields and waste places, common. 



V. angustifolia Mx. Henry and Johnson Cos. Sandy soil, 

 frequent. 



V. hastata L. Decatur, Appanoose, Wapello, Des Moines, 

 Shelby, and Johnson Cos. Fields and waste places, common. 



V. stricta Vent. Decatur, Appanoose, Van Buren, Des 

 Moines, Shelby, and Johnson Cos. Fields and upland woods, 

 common. 



V. bracteosa Mx. Decatur, Appanoose, Van Buren, Shelby, 

 and Johnson Cos. Waste places, frequent. 



Lippia lanceolata Mx. Wapello, Van Buren, and Johnson 

 Cos. Wet grounds, frequent. 



Phryma leptostachya L. Decatur, Appanoose, and Johnson 

 Cos. Rich woods, frequent. 



LABIAT^E. 



Isunthus cceruleus Mx. Johnson Co. Open woods, frequent. 



Teucrium canadense L. Decatur, Appanoose, Van Buren, 

 and Johnson Cos. Low grounds, frequent. 



Mentha canadensis L. Decatur and Johnson Cos. Low 

 grounds, common. 



Lycopus virginicus L. Decatur Co. Low grounds, frequent. 



L. rubellus Moench. Decatur Co. Low grounds, infrequent. 



L. sinuatus Ell. Decatur, Van Buren, and Johnson Cos. 

 Low grounds, common. 



Pycnanthemum lanceolatum Pursh. Decatur, Appanoose, 

 Wapello, and Johnson Cos. Open woods and prairies, fre- 

 quent. 



P. linefolium Pursh. Decatur, Appanoose, and Johnson Cos. 

 Open woods and prairies, frequent. 



Hedeomo pultgioidcs Pers. Decatur, Van Buren, and Johnson 

 Cos. Open woods, common. 



H. hipsida Pursh. Johnson Co. Dry soil, common. 



