FLOWEHING PLANTS \M> FERNS OF [NDIANA. 725 



P. Hydropiper L Smartweed. Water Pepper. 



In wet, rich soils and along ditches and borders of ponds, in 

 all parts of the State. Abundant in all of its stations. 



Flowers from July until in October. 



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

 Posey (Schneck); Jefferson (J. M. Coulter); Franklin (Meyncke); 

 Clark (Baird and Taylor); Noble (Van G order); Decatur and 

 Shelby (Ballard); Putnam (MacDougal); Knox (Spillman); Vigo 

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



P. punctatum Ell. Water Smartweed. 



(P. acre H. B. K.) 



Widely distributed throughout the State in moist soils, chiefly 

 in swamps and low grounds along waterways. Absent from ex- 

 treme northern counties of the State. 



Flowers from June until the heavy frosts. 



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

 (Barnes); Putnam (MacDougal); Franklin (Meyncke); Clark 

 (Baird and Taylor); Round Lake (Deam); Fayette (Hessler); Vigo 

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



P. orientale L. Prince' s Feather. 



In waste places about dwellings and along roadsides in many 

 counties. The species has largely escaped from cultivation and 

 maintains itself well, in some counties largely spreading. 



Flowers in August and September. 



Daviess (Clements); Clark (Baird and Taylor); Jay, Delaware, 

 Randolph and Wayne (Phinney); Noble (Van Gorder); Jefferson 

 (Barnes); Putnam (MacDougal); Franklin (Meyncke); Fayette 

 (Hessler); Hamilton (Wilson); Steuben (Bradner); Gibson and 

 Marion. 



P. Virginianum L. Virginia Knotweed. 



In heavily shaded places in damp, rich soil. Especially abun- 

 dant in the heavy thickets of the undrained bottom lands 

 about the margins of lakes. An easily recognized form. 



Flowers from July through October. 



Daviess (Clements); Gibson and Posey (Schneck); Jefferson 

 (Barnes); Putnam (MacDougal); Noble (Van Gorder); Franklin 

 (Meyncke); Fayette (Hessler); Hamilton (Wilson); Vigo (Blatch- 

 ley); Steuben (Bradner). 



