[Reprinted from The Ottawa- Natlralist, Vol. XX, without change 

 paging-. Published November 6th, 1906.] 



CONTRIBUTIONS TO CANADIAN BOTANY.* 



By James M. Macoun, Assistant Naturalist, Geological Survey of Canada. 



XVPII. 



MiTELLA DivERSiFOLiA, Greene. 



Near Trail, Columbia River, B.C., May 19th, 1902. No. 

 64,574.1 (W. Spreadboraugh.) New to Canada. 



Heuchera flabellifolia, Rydb,, N. A. Fi. xxii : 115. 

 H. parvifolia, Cat. Can. Plants i : 158 & 526. 



All the Canadian specimens referred to H. parvifolia in 

 our herbarium prove to be H. flabellifolia. They are from 

 Milk River Ridge, Alta. No. 10,560 ; Cypress Hills, Alta. 

 No. 8,514, and Crow Nest Pass, Rocky Mts. No. 20,167. 

 {John Macoun.) Milk River Ridge, Alta. No. 8,515. {Dr. 

 G. M. Dawson.) 



Heuchera Columbiana, Rydb., N. A. Fl. xxii : 116. 



I/, cylindrical var. alpitia, Cat. Can, Plants, i : 526 in part. 

 H. cylindrica, var. ovalifolia, Contr. Can. Bot. No. 6, p 5, 

 in part. 

 Crow Nest Pass, Rocky Mts. No. 8,500. {Dr. G. M. 

 Dawson.) Waterton Lake, Reeky Mts. No. 10,561 ; Eagle 

 Pass, C. P. Ry., B.C. No. 8,503. {John Macoun.) Trail, 

 Columbia River, B.C. No. 64,571. (/. M. Macoun.) Re- 

 ferred to H. glabella by Rosendahl, but apparently a good 

 species. 



Saxifraga rufidula, (Small). 



S. occidentalism Cat. Can. PI.. 11 : 321 in part. 

 Micranthes rufidula^ Small, N. A. Fl., xxii : 140. 



Well characterized by the red-tomentose under-surface of 

 the leaves. Described from specimens collected by Prof. 

 John Macoun on Mount Finlayson, Vancouver Island, May 



•Published by permission of the Director of the Geological Survey of 

 Canada. 



tSpecimens have been distributed from the herbarium of the Geological 

 Survey under thes* numbers. 



