2 Canadian Record of Science. 



Lesquerella Ludoviciaxa, Wats., var. arenosa, Wats. 



Vesicaria Lndoviciana, Macouii, Cat. Can. Plants, Vol. I., 

 p. 54, in part, and Vol. I., p. 490. 



From Western Manitoba to the Saskatchewan. The 

 reference under L. Ludoriciann, Wats., var. arenosa, Wats., 

 Macoun Cat. Can. Plants, Vol. II., p. 305, should go with 

 L. arctica, Wat. 



Sisymbrium virgatum, Nutt. 



In gravel amongst bushes, I'olice Point, Medicine Hat, 

 Assa. In fruit May 31st, 1894. Herb. Xo. 3,069: prairies, 

 12-Mile Lake, Wood Mountain, Assa., June 6th, 1895. 

 Herb. Xo. 1 0,007 ; meadows, Sucker Creek, Cypress 

 Lake, Assa., 1895. Herb. No. 10,006. {John Macoun.) 

 Kew to Canada. The Canadian specimens have longer 

 pedicels and pods and are more paniculately branched 

 than tliose from the Pocky Mountains in the L^nited 

 States, but Dr. Pobinson, who examined our specimens, 

 has been unable to detect a single significant or constant 

 character to separate the plants from the two regions. 



Arabis Drummoxdii, Gray : Macoun, Cat. Can. Plants' 

 Vol. I., p. 43, in part. 



A. Li/alUi, ]\Iacoun, Cat. Can. Plants, Vol. I., p. 43 : and 

 \'ol. I., p. 487, in part : J. M. Macoun, Can. Eec. Science, 

 Vol. VI., p. 145. 



From the Cypress Hills, Assiniboia, west to the Gold 

 Kange in British Columbia. Our specimens are from 

 Cypress Hills, Assa. ; Sheep Mountain, Waterton Lake, 

 Pocky ^Mountains ; mountains north of Devil's Lake, and 

 at Kicking Horse Lake, Rocky jMountains. {John Macoun.) 

 Maple Creek, Assa. ; Toad Mountain, Kootanie Lake, B.C.: 

 Mount Queest, Shuswap Lake, B.C. {Jas. M. Macoun ) 

 Rocky Mountains. {Drummond.) 



