FLOWERING PLANTS AND FERNS OF INDIANA. 769 



Franklin (Meyncke); Noble (Van Uorder); Fayette (Hessler); 

 Knox (Spillman); Hamilton and Marion (Wilson); Steuben 

 (Bradner). 



DENTAKIA L. 



D. laciniata Muhl. Cut-leaved Tootbwort or Pepper-root. 



Occurring in moist, rich soil throughout the State, usually as- 

 sociated with Cardamine bulbosa. Flowering season from April 

 to June. More abundant in the southern part of the State. An 

 exceedingly variable species. 



Jefferson (Barnes); Tippecanoe (Cunningham); Monroe and 

 Vigo (Blatchley); Putnam (MacDougal); Fayette (Hessler); Gib- 

 son and Posey (Schneck); Kosciusko (Coulter); Daviess (Cle- 

 ments); Dearborn (Collins); Jay, Delaware, Eandolph, and Wayne 

 (Phinney); Clark (Baird and Taylor); Noble (Van Gorder); 

 Franklin (Meyncke); St. Joseph (Rothert); Knox (Spillman); 

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



D. DIPHYLLA Micbx 



Found only in the southern counties, usually occurring in rich 

 woods. Not abundant in any locality except Monroe County. 



Flowers in April and May. 



Jefferson (Barnes); Monroe (Blatchley); Clark (Baird and Tay- 

 lor); Dearborn (Collins); Decatur (Ballard); Steuben (Bradner). 



D. heterophylla Nutt. Slender Toothwort. 



Bare in a few counties in the southern part of the State, 

 occurring in thickets and rich woods. 



It flowers very early, the season covering March and April. 



Monroe (Blatchley); Putnam (MacDougal); Gibson and Posey 

 (Schneck); Fayette (Hessler). 



LEAYENWORTHIA Torr. 



L. uniflora (Michx ) Britton. 



(L. Michauxii Torr.) 

 This southern species is confined to the Ohio River counties. 

 The single station from which specimens have been received is 

 Buffalo Lick, near Charlestown, Clark County. 

 First collected by Dr. Charles R. Barnes. 



