CATALOGUE OF CANADIAN PLANTS. 57 



(203.) L. ruderale, Linn. 



Introduced. Windsor and Sidney Bar, N.S. (How.*) Spreading from 

 ballast heaps, New Brunswick. (Fowler's Cat.) Roadsides 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. Cali/ornicum, Torr. & Gray, Fl. I., 115. 



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

 (206.) L. intermedium, Gray. 



L, ruderale, Kichards. in Frankl. Journ. 1C. Hook. Fl. I., 68. Torr. & 



Gray, Fl. I., 115. 

 L. Menziesii, var. /?., Hook. Fl. I., 69. 



This species and L. Virginicum have been, so much confused that 

 very little reliance can be placed on the stations given for the latter. 

 Pictou, N. S. (McKay.) Vicinity of Montreal. (McGill Coll. Herb.) 

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

 parts' of Hasting-*, Northumberland and Prince Edward counties, 

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

 and very abundant from Manitoba westward to the Rocky Mountains 

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

 B.C. (Macoun.) Rocky Mountains, Lat. 52 3 -56. (Drummond.) 



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



Introduced from the South. Roadsides, Cape Soute, Q. (Brunei.) 



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



Roadsides, Hamilton, Ont. (Logie.) Huron County, Ont. (Gibson.) 



Roadsides near Meyersburg, Northumberland County, Ont. (Macoun.) 



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

 Roadsides near Barrie, Ont, (Spotten.) This is likely a garden escape. 



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



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



Introduced in ballast. Spreading in ballast from St. John. N.B. 

 (Fowler's Cat.) On the wharf, Gaspe Basin, Q. (J. Bell.) 



