FLOWERING PLANTS AND FERNS OF INDIANA. 765 



SINAPIS L. 



S. alba L. White Mustard. 



(Brassica alba Boiss.) 

 Only occasionally found in waste fields and evidently escaped 

 from cultivation. Eeported from several southern counties. Her- 

 barium specimens from Jefferson (J. M. Coulter). 

 Hamilton (Wilson); Steuben (Bradner). 



BRASSICA L. 



B. nigra (L.) Koch. Black Mustard. 



Common in waste and cultivated grounds throughout the State. 

 In some communities classed among the bad weeds. 



Flowering season from May to September. 



Monroe and Vigo (Blatchley); Fayette (Hessler); Gibson and 

 .Posey (Schneck); Tippecanoe (Cunningham); Daviess (Clements); 

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

 (Meyncke); Jay, Delaware, Randolph, and Wayne (Phinney); No- 

 ble (Van Gorder); Putnam (MacDougal); Decatur and Shelby 

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



B. arveksis (L.) B. S. P. Charlock. Wild Mustard. 

 (B. Sinapistrum Boiss ) 

 In waste fields and along roadsides and streets. Rather com- 

 mon in the southern counties but not reported as occurring north 

 of Putnam. 



Flowering season, May and June. 



Monroe and Vigo (Blatchley); Putnam (MacDougal); Clark 

 (Baird and Taylor); Jefferson (J. M. Coulter); Dearborn (Collins); 

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



BARBAREA R. Br. 



B. Barbarea (L.) MacM. Yellow Rocket or Cress. 



(B. vulgaris R. Br.) 



Usually found in dry soil, preferably in waste fields, but occa- 

 sionally in low ground along streams. It is nowhere especially 

 abundant, and has no reported station north of Tippecanoe. 



Flowering season, April to June. 



Tippecanoe (Cunningham); Putnam (MacDougal); Jefferson 

 (J. M. Coulter); Clark (Baird and Taylor); Jay, Delaware, Ran- 

 dolph, and Wayne (Phinney); Monroe (Blatchley); Hamilton 

 (Wilson); Fayette (Hessler). 



