I go 



Hedeoiiia hispida, Pursh. Rough Pennyroyal. 

 Common on dry prairies throughout the state. 



Hedeoiiia Driiiniiiondii, Benth. Drummond's Penny- 

 royal. 



In dry soils in the Black Hills, and in the adjacent 

 plains. 



Hyssopus officinalis, L. Hyssop. 



Sparingly naturalized in the Sioux valley near Brook- 

 ings. 



Liycopus rubellus, Moench. Stalked Water Hoarhound. 

 In wet ground in the Minnesota and Sioux valleys. 



Lycopiis Ainericaiius, Muhl. Cut-leaved Water Hoar- 

 hound. 

 Lycopus sinuatus^ Ell. 



Common in wet soils throughout the state. 



Lycopus lucidus, Turcz. Western Water Hoarhound. 



In swamps and bogs in the Minnesota and Sioux val- 

 leys. 



Mentha Canadensis, L. American Wild Mint. 

 Common in moist soils throughout the state. 



SOLANACE.^. — Potato Family. 



Pliysalis long-ifolia, Nutt. Long-leaved Ground Cherry. 

 In the Sioux and Missouri valleys and the Black Hills; 

 more common westward. 



Pliysalis lanceolata, Michx, Prairie Ground Cherry. 

 On dry prairies throughout the state. 



Pliysalis Virg-iniaiia, Mill. Virginian Ground Cherry. 



In thickets in the Minnesota and Sioux valleys, and 

 in the Black Hills. 



Pliysalis lieteroi)liylla, Nees. Clammy Ground Cherry. 

 In the Minnesota and southern Missouri valleys, and 

 in the Black Hills. 



