CATALOGUE OP CANADIAN PLANTS. 57 



(203.) L. ruderale, Limi. 



Introduced. Windsor tind Sidney Bar, N.S. {How.) Spreading from 

 ballast heaps, New Brunswick. {Fowler's Cat.) Eoadsides Hamilton, 

 Ont. {Buchan.) 



(204.) L. campestre, R. Br. Field Pepper-grass. 



Introduced. Vicinity of Hamilton, Ont. {Buchan.) Clifton, near 

 Niagara Falls. {Macoun.) 



(205.) L. Menziesii, DC. Western Pepper-grass. 

 L. Californicwn, Torr. ifeGray, Fl. I., 11.5. 

 Common on rocks bordering on the sea at Victoria, Vancouver Island. 



(200.) L. intermedium, Cra}-. 



L. ruderale, Richards, in Frankl. Journ. Ki. Hook. Fl. I., 08. Torr. & 

 Gray, Fl. I., 115. 



L. Mmziem, var. /?., Hook. Fl. I., m. 



This sjjecies and L. Vlrglnicum have been so much confused that 

 very little reliance can be j)laced on the stations given for the latter. 

 Pictou, N. S. {McKay.) Vicinity of Montreal. {MrGUl Coll. Herb.) 

 Lake Temiscamingue, 1870. {J. Richardson.) Very common in many 

 parts of Hasting-t, Northumberland and Prince Edward counties, 

 Amherstburgh and Pelee Island, Ont.; Little Current, Georgian Bay; 

 and very abundant from Manitoba westward to the Eocky Mountains 

 on Peace Eiver. Spence's Bridge and along the Thompson to Lytton, 

 B.C. {Macoun.) Eocky Mountains, Lat. 52^-56°. {Brummond.) 



(207.) L. Virginicum, Linn. Virginia Pepper-grass. 



Introduced from the South. Eoadsides, Cape Soute, Q. {Brunei.) 



Old Citadel Hill, Montreal. {Holmes.) Near London, Ont. {Burgess.) 



Eoadsides, Hamilton, Ont. {Logic.) Huron County, Ont. {Gibson.) 



Eoadsides near Meyersburg, Northumberland County, Ont. {Macoun.) 



(208.) L. Draba, Linn. Cxray, Manual, 74. 



Eoadsides near Barrie, Ont. {Spotten.) This is likely a garden escape. 



64, SENEBIERA, DC. (WART-CRESS. SWINE-CRESS.) 



(209.) S. Coronopus, Poir. Swine-cress. 



Introduced in ballast. Spreading in ballast fj-om St. John, N.B. 

 {Fowle)-'s Cat.) On the wharf Gaspo Basin, Q. {J. Bell.) 



