﻿Contributions to Canadian Botany. 285 



Erigonum niveum, Dougl. 



Dry ground, Lake Okanagan, B.C., Sept. loth, 1890. 

 (Dr. G. M. Daivson.) New to Canada. 



Erigonum cernuum, Nutt. 



Sand hills at the crossing of Many Berries Creek near 

 Milk Kiver, Assa. Herb. No. 12947 ; on the banks of the 

 South Saskatchewan at Police Point, Medicine Hat, Assa. 

 Herb. No. 12946. (JoJm Macoun.) New to Canada. 



Polygonum bistortoides, Pursh. 



On the summit of Sheep Mountain, Waterton Lake, 

 Eocky Mountains, alt. 7,500 ft., July 31st, 1895. Herb. 

 No. 12989. (John Macoun.) New to Canada. Arctic 

 American specimens referred to P. Bistorta seem to be 

 intermediate between that species and P. bistortoides. 



Sassafras officinale, Nees. 



Near Sarnia, Lambton Co., Ont. (C K. Dodge.) North- 

 western limit in Ontario. 



Quercus alba, L. 



Elevated shore of Kainy Lake, Ont., 1896. ( W. Mclnnes.) 

 Western limit in Canada. 



Cypripedium acaule, Ait. ; Macoun, Cat. Can. Plants, 

 Vol. IL, p. 22. 



Dry hillock of sand and boulders. Lat. 57° 30', Long, 

 107°. (Jas. W. Tyrell.) 



UvuLARiA PERFOLIATA, L. ; Macoun, Cat. Can. Plants, 

 Vol. IL, p. 44. 



Near Niagara, Ont., 1890. (/. Dearness.) Jordan 

 Station, near Niagara, Ont., 1892. (John Macoun.) Very 

 rare and not collected for many years. 



