VALLEY OF THE ST. LAWRENCE ANB GREAT LAKES. 55 



Lake Simcoe (Goldie). Near London, Ontario (Saunders). Toronto (Prof. 

 Croft). iSandy plains of the Riviere aux Sables, County Lambtou (Gibson). 

 Lake Winipeg (Barnston). Saskatchewan River (Bourgeau). Lake of the 

 Woods (Macoun). Abundant. May. 



K. abortivus, L. Small-flowered Buttercup. 



Indigenous. Pasture fields, woods, and roadsides. Very abundant. Ex- 

 tends from Newfoundland (Verrill), Belosil (Dr. Bell), New Brunswick (Dr. 

 Fowler), Aiiticosti (Verrill), through Quebec and Ontario to Thunder Bay, 

 Lake Superior (Macoun). Lake Winipeg (Barnston). Fort Gany (Dr. 

 Schultz, Prof. Lawson). Plains of the Saskatchewan (Bourgeau). Common. 

 May, June. 



R. abortivus, L. Yar. micrantlius, Nutt. 



Indigenous. Margins of ponds and lakes. North shore of Lake Superior 

 (Agassiz). Along the canal at the Sault Ste. Marie, north of Lake Huron 

 (Macoun). Very rare. June, July. 



R. sceleratus, L. Noxious Buttercup. 



Indigenous. In ditches and ponds. From Belceil Mountain (Dr. Bell), and 

 New Brunswick (Mathews), through Quebec and Ontario to Sault Ste. Marie 

 (Macoun). Rainy and Slave Lakes (Gapt. Back, Prof. Lawson). Lake Winipeg 

 (Barnston). Saskatchewan (Bourgeau). Manitoba to the Rocky Mountains 

 (Macoun). B. N. America, lat. 67" (Hooker). Common. June, July. 



R. recurvatus, Poiret. Hook-fruited Buttercup. 



Indigenous. Shady, wet woods. Labrador (Hooker), Kent County, New 

 Brunswick (Dr. Fowler), through Quebec and Ontario to the Kaministiquia 

 River, Lake Superior (Macoun). Pied du Cap Tourmente (Provancher). 

 Prescott, Ont. (Billings). Nicolet and Chippewa, Ont. (Dr. Maclagan). 

 Toronto (Prof. Groffc). Sulphur Springs, near Aucaster, Ont. (Logie). Banks 

 of Cove, London, Ont. (Saunders). Huron County, Ont. (Gibson). Lake of 

 the Woods (Macoun). May, June. 



R. Pennsylvanicus, L. Bristly Buttercup. 



Indigenous. Moist meadows and borders of streams. New Brunswick 

 (Mathews). District of Montreal (Brunet). Riviere du Loup (Thomas). 

 Abundant, River Rouge (D' Urban). Wastes, Prescott (Billings). Nicolet 

 and Chippewa (Maclagan). Moist meadows and borders of streams. Central 

 Canada ; Owen Sound ; Prince Arthur's Landing, Thunder Bay, Lake Supe- 

 rior (Macoun). St. Catherines (Saunders). Toronto (Croft). Fort Garry, 

 (Dr. Schultz, Prof. Lawson). In the wooded country from Lake Supei'ior to 

 the Rocky Mountains (Macoun). West Coast of Newfoundland (Dr. Bell). 

 Athabasca River, lat. 57° N. (Macoun). 



R. fascicularis, Muhl. Bundle-roofced Buttercup. 



Indigenous. Dry gravelly soil in open woods. Reported from Somerset 

 by Provancher (Dr. Lawson). Belleville, Trenton, and Toronto (Macoun). 

 Kingston Mills, Chippewa, and Maiden, (Maclagan). London (Saunders). 

 Hamilton (Logie). Common in Western Ontario (Gibson). Lake Winipeg 

 (Hooker). 



R. repens, L. Running Buttercup. 



Indigenous. Overflowed places along streams and rivers. New Brunswick 

 (Mathews). Riviere du Loup, not common (Dr. Thomas). Common near 



