CATALOGUE OF CANADIAN PLANTS. 51 



(203.) L. mderale, Linn'. 



Introduced. "Windsor and Sidney Bar, N.S. {Hmu.) Spreading from 

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

 Ont. (Buchan.) 



(204.) L. campestre, E. Br. Field Pepper-g-rass. 



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

 Niagara Palls. (Macoun.) 



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

 L. Californicwn, Torr. & Graj', Fl. I., 115. 

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

 (206.) L. intermedium, Clray. 



L. mderale, Richards, in Frankl. Journ. 16. Hook. Fl. I., 68. Torr. & 



Gray, Fl. I., 115. 

 L. Menziexii, var. 0., Hook. Fl. I., 69. 



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

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

 Piclou, N. S. (McKay.) Vicinity of Montreal. {M,-Gill Coll. Herb.) 

 Lake Temisoamingue, 1870. (J. Richardson.) Very conrmon in many 

 parts of Hasting<, Northumberland and Prince Edward counties, 

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

 and very abundant fi'om Manitoba westward to the Eocky Mountains 

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

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



(207.) L. Virginicum, Linn. Vii-ginia Pepper-grass. 



Introduced from the South. Eoadsides, Cape Soute, (}. (Brunei.) 



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



Eoadsides, Hamilton, Ont. (Logic.) Huron County, Ont. (Gibsmi.) 



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



(208.) L. Draba, Linn. "Gray, 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 from St. John, N.B. 

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



