1000 REPORT OF STATE GEOLOGIST. 



CARDUUS L. 



C. lanceolatus L. Common Thistle. 



(Cnicus lanceolatus Willd.) 



The most abundant and widely distributed form of the genus. 

 Occurs everywhere, but especially abundant in waste or aban- 

 doned lands and along roadsides. 



Flowering season, July until frosts. 



Tippecanoe (Cunningham); Jefferson (Barnes); Putnam (Mac- 

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

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

 Ta}dor); Franklin (Meyncke); Dearborn (Collins); Daviess (Cle- 

 ments); Decatur and Shelby (Ballard); Fayette (Hessler); Hamil- 

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



(J. altissimus L. Tall or Roadside Thistle. 



(Gnicus altissimus Willd.) 



Widely distributed throughout the State, occurring in loca- 

 tions similar to the preceding species. It is somewhat more abun- 

 dant in the northern counties of the State. 



Flowers in August and September. 



Tippecanoe (Cunningham); Kosciusko (Coulter); Daviess (Cle- 

 ments); Vigo (Blatchley); Gibson and Posey (Schneck); Jay, Del- 

 aware, Randolph, and Wayne (Phinney); Jefferson (J. M. Coul- 

 ter); Clark (Baird and Taylor); Franklin (Meyncke); Fayette 

 (Hessler); Hamilton (Wilson); Steuben (Bradner); Marion 

 (Moffatt). 



C. discolor (Muhl.) Nutt. Field Thistle. 



(Cnicus altissimus discolor Gray.) 

 In similar situations, though less common and less widely dis- 

 tributed. 



Flowers from August until November. 



Elkhart (Barnes): Vigo (Blatchley); Putnam (MacDougal); 

 Gibson and Posey (Schneck); Daviess (Clements); Fayette (Hess- 

 ler); Steuben (Bradner). 



C. VlRGINIANUS L. 



(Cnicus Virginianus Pursh.) 

 In dry, shaded localities in the eastern counties of the State. 

 Evidently has entered the flora from the east. 

 Flowers in May continuing through September. 

 Jay, Delaware, Randolph, and Wayne (Phinney). 



