414 GEOLOGICAL SURVEY OF CANADA. 



along brooks, Oak Hills, South Hastings, Ont. (Macoun.) Vicinity 

 of Hamilton. (Buchan.) Near St. Thomas. (Miss Kate Crooks.') 

 St. Catherines, Niagara and Maiden. (Maclagan.) Thickets at King- 

 ston, Ont., and at Port Stanley, on Lake Erie. (Burgess.') Borders 

 of a creek half a mile west of London, Ont. (Saunders.) North 

 shore of Lake Superior. (Agassi?.) Climbing over bushes at the 

 Qu'Appelle Lakes, N.W.T. (J. M. Macoun.) Forming almost impene- 

 trable thickets near the source of the Qu'Appelle, at Swift Current 

 Creek, and at the eastern end of the Cypress Hills, N.W.T. (Macoun.) 

 Winnipeg and North-West Angle Eoad, also Turtle Mountain, 49th 

 parallel. (Dawson.) 



(1900.) P. TARTARICUM, Linn. Eough Buckwheat. 



In cultivated and waste grounds ; escaped from cultivation. Culti- 

 vated and waste grounds, N.B. (Fowler's Cat.) 



519. FACOPYRUM, Ccertn. (BUCKWHEAT.) 



(1901.) F. ESCULENTTTM, Moench. 



Polygonum Fagopyrum, Pursh, Fl. I., 273. 



Adventitious in cultivated fields, on waste heaps, by roadsides, and in 

 the neighbourhood of towns and villages from Nova Scotia throughout 

 Canada where there are settlements. 



520. OXYRIA, Hill. (MOUNTAIN SORRELL.) 



(1902.) O. digyna, Campdera. 



0. reniformis, Hook, Fl. II., 129. 

 Rwmeofr digynus, Pursh. Fl. I. 248. 



On high mountains or exposed shores in the north. Summit of Mount 

 Albert, Shickshock Mountains, Gaspe", Que. (Macoun.) Labrador. 

 (Morrison.) Nachvak, coast of Labrador, Port Burwell (Cape Chud- 

 leigh), Cape Prince of Wales, Nottingham and Digge's Islands off 

 Cape Wolstenholme, Hudson Straits. (JR. Bell.) Common in the 

 Rocky Mountains and on the Arctic sea-shores. (Richardson & Drum- 

 mond.) Rocky Mountains 6,000 feet altitude, 49th parallel, also eastern 

 summit of North Kootanie Pass. (Dawson.) On high mountains in 

 the Bow River and Kicking Horse Passes, and on Mount Selwyn in the 

 Peace River Pass, also common in the Selkirk Mountains, B. C. 

 (Macoun.) Rocky Mountains. (Bourgeau.) Islands of Sitka, Ouna- 

 lashka and St. Lawrence, Kotzebue Sound, Cape Lisburne and the 

 Arctic coast. (Rothr. AtasJc.) 



