156 GEOLOGICAL SURVEY OP CANADA. 



(719.) T. parviflora, Hook. PI. L, 239. 



Lithophragma parviflora, Nutt. Torr. & Gray, Fl. L, 584. 



Very abundant on Vancouver Island in the vicinity of Victoria. 

 (Macoun.) On the Lower Fraser and near Yale, B.C. (Hill.) 



180. TIARELLA, Linn. (FALSE MITRE WORT.) 



(720.) T. cordifolia, Linn. 



Rich shady woods and ravfties. Rare in woods, Pictou, N.S. (Mc- 

 Kay.) Truro, N.S. (Lindsay.') Rare in the northern counties, com- 

 mon about Fredericton, N.B. (Fowler's Cat.} Common in rich woods 

 throughout Ontario and Quebec. 



(721.) T. unifoliata, Hook. Fl. L, 238. 



Heuchera longipetala, Mog. Hook. Fl. I., 237. 



North-west coast of America. (De Candolle.) Height of Land in 

 the Rocky Mountains, near the source of the Columbia, and at Portage 

 River. (Drummond.) Vancouver Island, around Victoria. In woods 

 north of Fort St. James, Stuart Lake, B.C. (Macoun.) Telegraph Trail 

 near the Blackwater River ; and at McLeod's Lake, B.C. ; S. Kootanie 

 Pass, Rocky Mountains, Lat. 49. (Dawson.) 



(722.) T. trifoliata, Linn. 



T. laciniata, Hook. Fl. I., 239. 



North-west coast of America. (Menzies.) Common on the coast, 

 and in the Rocky Mountains on the west side of the ridge. (Douglas.') 

 Height of Land, near a large glacier, upon the Rocky Mountains. 

 (Drummond.) Queen Charlotte Islands ; and Cascade Mountains, above 

 Mount Hope. (Dawson.) Vancouver Island, near Victoria. (Macoun.) 

 Sitka and Alaskan coast. (Rothr. Alask.) 



181. MITELLA, Tourn. (MITRE WORT.) 



(723.) M. diphylla, Linn. 



Rich woods and banks. Riviere du Loup, Q- (Thomas.') Vicinity 

 of Quebec, and cemetery of St. Charles. (Brunei.) Abundant about 

 Montreal. (McGill Coll. Serb.) Very common in Ontario, especially 

 in the lake and river counties. 



