THE OTTAWA NATURALIST. 



Vol. XII. OTTAWA, DECEMBER, 1898. No. 9. 



CONTRIBUTIONS TO CANADIAN BOTANY.* 



By James M. Macoun. 

 Assist. Naturalist Geo). .Survey of Canada. 



XII. 



Ranunculus inamcenus Greene, Pittonia in, p. 91. 



Green, and appearing as if glabrous, but sparsely hairy, the 

 the stoutish stems 6 to 12 inches high ; radical short-petiolate 

 leaves obovate-flabelliform, at summit either crenate-toothed or 

 3-lobed, the caulinc usually quite sessile and once or twice 

 ternaiely divided into oblanceolate segments ; peduncles short 

 and slender, often 3 to 5 together and subumbellate ; corolla 3 to 

 5 lines broad, the 5 petals obovate-oblong ; head of small pubes- 

 cent achenes ovoid or short-cylindraceous, the linear receptacle 

 white-hispid. 



Banff, Rocky Mountains, 1891 ; from several localities in 

 the foot-hills, i.e.. Jumping Pond Creek, Herb. No. 18,039 5 

 Bragg's Creek, Elbow River, Herb. Nos. 18,037 ^^^ 18,038, and 

 Moose River, Elbow River, Herb. No. 18,040. {John Macoun^ 



An excellent species well separated from all forms of 

 R. affints to which it has at various times been referred. 



Aquilegia flavlscens, Wats. 



Not rare on mountain-sides on both sides of the summit at 

 Yellow Head Pass, Rocky Mountains, Lat. 52° 50', 1898. {W. 

 Spreadboro2ig/i) Northern limit. 



Nasturtium sylvestre, R. Br. 



Naturalized along the road in front of Ball's Mills, Lincoln 

 Co., Ont. ( W. C. McCalla.) New to Canada. 



•CaRDAMINE ANGULATA, Hook. 



Spring House Cove, Dawson Harbour, Queen Charlotte 

 Islands, B.C., June 26th, 1897. (Dr. C. F. Newcombe.) New to 



"*Parts I-XI of these contributions appeared in the " Canadian Record of Science"' 

 during the years 1894-98. 



