Contributions to Canadian Botany. 145 



Barbarea vulgaris, K. Br., var. arcuata, Koch. 



Finlayson Kiver, lat. 61°. (Dr. Geo. M. Dawson.) 

 Kevelstoke, B. C. (John Macoun.) Most northerly and 

 easterly stations for this variety. 



Arabts con finis, Wat. 



Fort Simpson and Peel's Kiver, Mackenzie Kiver. (Miss 

 E. Taylor.) Our most northerly specimens. 



Arabis humifusa, var. pubescens, Wat. 



North shore of Lake Athabasca, N. W. T., 1893. (J. W. 

 Tyrrell.) Oar only other specimens are from Hudson Bay. 



Arabis Lyallii, Wat. 



Prof. Macoun (Cat. Can. Plants, Yol. I., p. 487) places the 

 western limit of this species at the summit of the Selkirk 

 Mts. More westerly stations are Toad Mt., Kootanie Lake, 

 B. C, alt. 5,500 ft., and Mt. Queest, Shuswap Lake, B. O, 

 alt. 6,000 ft. (Jas. M. Macoun.) 



Cardamine Breweri, Wat. 



O. pratensis, L., var. occidentalism Macoun, Cat. Can. 

 Plants, Yol. II., p. 601. 



In springs and ditches, Groldstream, Yictoria, Comox and 

 Nanaimo, Yancouver Island. (John Macoun.) New to 

 Canada. Specimens of this plant collected by Prof. 

 Macoun at Nanaimo, in 1887, were called C. pratensis, var. 

 occidentalis, by Dr. Watson. A recent comparison of our 

 specimens with the type at Harvard, by Prof. Macoun, 

 shows our plant to be 0. Breweri. 



Cardamine pratensis, Linn., var. anqustifolia, Hook. 



North shore of Lake Athabasca, N. W. T. (Jas. W. 

 Tyrrell.) 



Draba nivalis, Jacq., var. elongata, Wat. 



First collected on the mountains at Kicking Horse Lake 

 by Prof. Macoun in 1885, and referred to D. stellata, Jacq. 

 Other stations are Kicking Horse Kiver, Kocky Mts., alt. 

 4,000 ft., and Koger's Pass, Selkirk Mts., alt. 5,500 ft., 1890. 

 (Jas. M. Macoun.) Mountains near Banff, Kocky Moun- 

 tains, 1891. (John Macoun.) 



