156 GEOLOGICAL SURVEY OP CANADA. 



(Tig.) T. parviflora, Hook. Fl. L, 239. 



lAthophragma parviflora, Nutt. Torr. & Gray, Fl. I., 584. 



Very abundant on Vancouver Island in the vicinity of Victoria. 

 {Macmn.') On the Lower Fraser and near Tale, B.C. {Hill.) 



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



(Y20.) T. cordifolia, Linn. 



Eich shady woods and ravines. Eare in woods, Pictou, N.S. {Mc- 

 Kay.) Truro, N.S. {Lindsay.) Eare 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. I., 238. 



Heuchera longipetala, M05. Hook. Fl. I., 237. 



North-west coast of America. {De Oandolle.) Height of Land in 

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

 Eiver. {Drummond^ Vancouver Island, around Victoria. In woods 

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

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

 Pass, Eocky Mountains, Lat. 49°. {Daivson.) 



(722.) T. trifoliata, Linn. 



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



!N'orth-w;e8t coast of America. {Menzies.) Common on the coast, 

 and in the Eocky Mountains on the west side of the ridge. {Douglas.) 

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

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

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

 Sitka and Alaskan coast. {Eothr. Alask.) 



181. MITELLA, Tourn. (MITRE WORT.) 



(723.) M. diphylla, Linn. 



Eich 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. 



