CATALOGUE OP CANADIAN PLANTS. 151 



C724.) M. nuda, Lmn. 



M. reniformis, Lam. Pursh, 314. 

 M. cordifolia,- Lam. Pm-sh, 314. 



Veiy common in cool, damp woods or swamps, from Labrador, New- 

 foundland and JSTova Scotia to the Pacific and northward to the Arctic 

 Sea. One of om* most widely distributed species. 



Var. 0. Torr. & 'Gray, Fl. I., 586. 



M. prostrata, Michx. Fl. I., 270. 



This form is easily known by the long runners producing terminal 

 racemes. 



(Y25.) M. pentandra, Hook. 



Frequent in mountain woods, from Lat. 49° northward. Moist alpine 

 woods in the Eocky Mountains. (JDrummond.') Eastern base of the 

 Cascade Mountains on Skagit Eiver, B.C. On the slopes of the Eooky 

 Mountains, Kootanie Pass, Lat. 49°. (Dawson.') In woods near Mc- 

 Leod's Lake, B.C. (Macoun.) 



(726.) M. trifida, Graham. 



Alpine rivulets, north of Smoky Eiver, on the east side of the Eocky 

 Mountains, in Lat. 56°, rare. (Brummond.) On the slopes of the 

 mountains, near their summits, at Spence's Bridge, B.C. (Macoun.) 



(Y27.) M. caulescens, Nutt. 



Occurs on the southern boundary of British Columbia. 



182. HEUCHERA, Linn. (ALUM-ROOT.) 



(128.) H. micrantha, Dougl. 



JN orth-west coast of America. (Scouler.) Common around Victoria, 

 Vancouver Island. (Macoun.) East of Hope Mountain, Cascade Eange ; 

 Coast Eange, near Bute Inlet ; Queen Charlotte Islands. (Dawson.) 



(129.) H. glabra, Willd. 



North-west coast of America, also Nootka. (Hooleer.) Eocky Moun- 

 tains, at Providence and Portage Elvers, in Lat. 54°. (Drummond.) 

 On the Misinchinca Eiver, near the Pine Pass, Lat. 55°. (Dawson.) 

 Sitka. (Rothr. Alask.) 



