FLOWERING PLANTS AND FERNS OF INDIANA. 913 



M. piperita L. Peppermint. 



Borders of streams and in wet places throughout the State. 

 Abundant in all suitable locations. 



Flowers from July through September. 



Daviess (Clements); Jefferson (Barnes); Putnam (MacDougal); 

 Jay, Delaware, Randolph, and Wayne (Phinney); Franklin 

 (Meyncke); Clark (Baird and Taylor); Noble (Van Gorder); Gib- 

 son and Posey (Schneck); Vermillion (Wright); Decatur and 

 Shelby (Ballard); Round Lake (Deam); Fayette (Hessler); Vigo 

 (Blatchley); Hamilton and Marion (Wilson); Steuben (Bradner). 



M. ARVENSis L. Field Mint. 



In a few parts of the State in dry fields and waste places. 

 Known locally as "wild pennyroyal." 

 Flowers in July and August. 



Gibson and Posey (Schneck); Jay, Delaware, Randolph, and 

 Wa}~ne (Phinney). 



M. sativa L. Marsh-whorled Mint. 



Confined to a few counties bordering the Ohio River, where it 

 is sparingly found in dry, waste places. 

 Flowers in July and August. 

 Jefferson (J. M. Coulter); Clark (Baird and Taylor). 



M. Canadensis L. Wild Mint. 



Of general distribution throughout the State. Found in moist 

 soils and especially abundant about springs and shallow streams. 



Flowers from July until October. 



Laporte (Barnes); Carroll and Jefferson (J. M. Coulter); Put- 

 nam (MacDougal); Jay, Delaware, Randolph, and Wayne (Phin- 

 ney); Franklin (Meyncke); Gibson and Posey (Schneck); Noble 

 (Van Gorder); Dearborn (Collins); Tippecanoe (King); Fayette 

 (Hessler); Vigo (Blatchley); Steuben (Bradner). 



COLLINSONIA L. 



C. Canadensis L. Horse-balm. 



In moist, rich woods in many counties. More plentiful in 

 southern part of State. 



Flowers from July through October. 



Jefferson (Barnes); Putnam (MacDougal); Jay, Delaware, Ran- 

 dolph, and Wa3me (Phinney); Franklin (Meyncke); Clark (Baird 

 and Taylor); Gibson and Posey (Schneck); Noble (Van Gorder); 

 Dearborn (Collins); Fayette (Hessler); Vigo (Blatchley): Hamil- 

 ton and Marion (Wilson); Steuben (Bradner). 



