70 



Renwick, with appauently "typical" leaves, has very long 

 capsules (perhaps 10 - 12 cm)? the determination is pre- 

 sumably correct, however, in both oases. 



12. LEPIDIUM (Tourn.) L. 



31* Lepldlum campestre (L*) R. Br. 



Solentiflo name: 



Thlaspl campestre L. Sp. PI. 646. 1753. 



Lepldlum campestre R. Br. in Alt. 



f. Hort. Eew. 4: 88. 1812. 

 dommon names; 



Field cress. 



Cow -cress. 

 Distribution and habitat: 



Naturalized from Europe. Southeastern Canada; 

 northeastern and North Central States. "A bad weed in 

 the Middle States" (B. M.); "becoming common" (6. M.). 

 Fields, roadsides, waste places. 



PI. Mon. Co.. "Not common. First observed in the 

 vicinity of Rochester in 1862, on Charlotte R. R. track, 

 Greece, a single plant." PI. Buf. Vic: not listed. 



