756 BEPOKT OF STATE GEOLOGIST. 



R. repens L. Creeping Buttercup. 



Common in fields and meadows, usually in low, damp places. 

 In the stations in which it occurs it is ordinarily plentiful, 

 though not of as wide distribution as the following species, with 

 which it is often confused. 



Flowers from April until July. 



Tippecanoe (Cunningham); Jefferson (J. M. Coulter); Monroe 

 (Blatchley); Fayette (Hessler); Kosciusko (Coulter); Daviess 

 (Clements); St. Joseph (Rothert); Steuben (Bradner). 



R. septentfjonalis Poir. Swamp or Marsh Buttercup. 



Common in marshes and very wet low places. Usually indica- 

 tive of rich soils though occasionally ranging into dry, sterile 

 places. In the latter situation it is frequently mistaken for R. 

 acris. 



Flowers from April until August. 



Jefferson (J. M. Coulter); Putnam (MacDougal); Monroe and 

 Vigo (Blatchley); Gibson and Posey (Schneck); Kosciusko (Coul- 

 ter); Daviess (Clements); Jay, Delaware, Randolph, and Wayne 

 (Phinney); Clark (Baird and Taylor); Franklin (Meyncke); Dear- 

 born (Collins); Knox (Spillman); Hamilton and Marion (Wilson). 



R. fasctcularis Mubl. Early Buttercup. 



Of wide distribution and abundant in its various stations. 

 Found chiefly in dry, sandy soils in fields or on rocky hillsides. 



Flowers in April and May. 



Monroe and Vigo (Blatchley); Jefferson (Barnes); Gibson and 

 Posey (Schneck); Tippecanoe (Cunningham); Kosciusko (Coul- 

 ter); Dearborn (Collins); Noble (Van Gorder); Franklin 

 (Me}oicke); Clark (Baird and Taylor); Decatur and Shelby (Bal- 

 lard); St. Joseph (Rothert); Steuben (Bradner). 



BATRACH1UM. S. F. Gray. 



B. trichophyllum (Chaix.) Bossch Stiff White Water Crowfoot. 

 (Ranunculus aquatilis trichophyllus DC ) 



Found in lakes, ponds and sluggish streams in various parts of 

 the State. More abundant in the northern than in the southern 

 counties. Abandoned parts of the Wabash and Erie Canal are in 

 many places absolutely occupied by this plant. 



Flowers in April and May. 



LaPorte (Barnes); Vigo (Blatchley); Johnson (Hubbard); Gib- 

 son and Posey (Schneck); Noble (Van Gorder); Jay, Delaware, 

 Randolph, and Wayne (Phinney); Kosciusko (Coulter); Tippe- 

 canoe (Cunningham); St. Joseph (Rothert); Steuben (Bradner). 



