Contributions to Canadian Botany. 146 



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



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

 Revels toke, B. C. CJofin Macoun.) Most northerly and 

 easterly stations for this variety. 



Arabis confinis, Wat. 



Fort Simpson and Peel's River, Mackenzie River. (^Miss 

 E. Taylor.) Our most northerly specimens. 



Arabis htjmifusa, var. pubescens, Wat. 



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

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



Arabis Lyallif, Wat. 



Prof. Macoun (Cat. Can. Plants, Vol. 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. C, 

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



Cardamine Breweri, Wat. 



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

 Plants, Vol. II., p. 601. 



In springs and ditches, Goldstream, Victoria, Comox and 

 Nanaimo, Vancouver I.><land. (John Macoun.) New to 

 Canada. Specimens of this plant collected by Prof. 

 Macoun at Nanaimo, in 1837, 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 C. Breweri. 



Cardamine pratensis, Linn., var. angustifolia, Hook. 

 North shore of Lake Athabasca, N. W. T. (Jos. 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 River, Rocky Mts., alt. 

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

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

 tains, 1891. (John Macoun.) 



