158 GEOLOGICAL SURVEY OP CANADA. 



(730.) H. cylindrica, Dougl. 



H. ovalifolia, Nutt. Torr. & Gray, Fl. L, 581. 

 H. glabella, Torr. & Gray, Fl. L, 581. 



On the declivities of low hills, and on the steep banks of streams, on 

 the west side of the Eocky Mountains. (Douglas.) On the dry slopes 

 along the Fraser and Thompson Rivers from Yale to Spence's Bridge. 

 (Macoun.) 



(731.) H. Hallii, Gray. (?) 



Slopes of the Rocky Mountains in the Kootanie Pass, Lat. 49. 

 (Dawson.) Bow River Pass, 51, 1879. (Macoun.) I refer the speci- 

 mens obtained to this species, but they accord best with H. glabella, 

 Nutt., which, however, Watson makes a synonym of H. cylindrica. The 

 spike is long and the flowers are in sub-verticillate, conglomerate 

 heads. It is certainly distinct from H. cylindrica. 



(732.) H. parvifolia, Nutt. 



On dry gravel ridges west of Fort Walsh, on the top of the Cypress 

 Hills, N.W.T. (Macoun.*) 



(733.) H. hispida, Pursh. 



H. Richardsonii, E. Br. Hook. Fl. L, 237. 



Dry banks of rivers, Lat. 54-64. (Richardson.) From the Saskat- 

 chewan west to the Rocky Mountains. (Drummond.*) Western end of 

 Lake Shebandowan, Dawson Route, 1872 ; from Manitoba to the 

 Rocky Mountains, throughout the prairie and Peace River regions- 

 (Macoun.) Abundant from the Lake of the Woods, westward. (Daw. 

 son.) Echimamish River to Oxford House, near Hudson's Bay, and 

 along the Nelson River to Hudson's Bay. (R. Bell.*) 



(734.) H. Americana, Linn. 



H. cortusa, Michx. Fl. L, 171. 

 H. viscida, Pursh, 187. 



Woods near Amherstburg, Lake Eric, 1882. (Macoun.) Maiden, 

 Ont. (Maclagan.) 



183. CHRYSOSPLENIUM, Tf't. (GOLDEN SAXIFRAGE.) 



(735.) C. Americanum, Schweinitz. 

 C. oppositifolium, Walter. Pursh, 269. 

 Ditches and spring brooks, Pictou, N.S. (McKay.) Common about 



